/ Field tools · 136 field topics · No email required
The screen that turns a vague question into a defensible record.
One hundred and thirty-six field topics, grouped the way a job actually runs. Available decision screens name the governing document, classify the path and produce a record for an RFI. None replaces the adopted code or the PE of record.
Technical review in progress. Some screens are temporarily unavailable for calculation while their code conditions and local applicability are checked. Each affected screen is marked below, with its reference links still available.
1
Run screen 01 first. It records whether the basis for any answer below actually exists yet. Most disputes are a basis problem wearing a technical costume.
2
Pick the screen by the contaminant, the fuel or the assembly — not by the room name on the architectural plan. The room name is what gets people the wrong hood, the wrong damper and the wrong vent.
3
Copy an available result. Active screens produce a plain-text record with your inputs, the governing path and the boundary, ready for an RFI or a submittal narrative.
What these are. Educational field screens built on the model IMC 2024 and MasterBuild’s published field method. Active screens classify a path and name the governing document; screens pending review show their references without returning a calculation.
What these are not. They do not size equipment, do not perform a venting calculation, do not set a recertification due date, and do not replace the adopted Florida Building Code, the product listing, the manufacturer instructions or the licensed Professional Engineer of record. Miami-Dade reviews the Florida Building Code, Mechanical, 8th Edition (2023) — based on IMC 2021 — not the 2024 model taught here.

Written and maintained by Osmany Portal, PE (Florida PE 95945). Anything you send from a result goes to him directly, not to a sales queue. About the PE
Abbreviations on this page: OA outdoor air · cfm cubic feet per minute · GPM gallons per minute · Btuh British thermal units per hour · ACH air changes per hour · EER energy efficiency ratio · COP coefficient of performance · A2L ASHRAE 34 mildly flammable class · GWP global warming potential · OEL occupational exposure limit · AFF above finished floor · ΔP pressure difference · NFA net free area · ACCA Manual D Air Conditioning Contractors of America residential duct design · CNG compressed natural gas · LNG liquefied natural gas · LFL lower flammable limit · IMC International Mechanical Code · IFGC International Fuel Gas Code · FBC Florida Building Code · NEC National Electrical Code · AHJ authority having jurisdiction (the building department) · SCCR short-circuit current rating · ERV energy-recovery ventilator · IOM installation, operation and maintenance instructions · Type I / Type II commercial kitchen hood types · HB 803 Florida’s 2026 small-project permit-exemption bill. Numbers like 401 or 508 are IMC sections unless marked NEC, IFGC or NFPA.
No screen matched. Try kitchen, outdoor air, chimney, damper, SCCR or permit — or open field knowledge.
1 screen
Start here
Before any screen below is worth running: is the basis for the answer actually established?
13 screens
Ventilation & outdoor air
How much outdoor air the space needs, where it enters, and whether the path you drew counts.
12 screens
Kitchen, grease & hoods
Which hood type the cooking actually requires, and everything the grease duct has to satisfy after that.
7 screens
General & process exhaust
Whether an exhaust system is required at all, where it may discharge, and what may be recirculated.
2 screens
Combustion air
Whether the appliance room can actually breathe — and which book says so.
22 screens
Chimneys, vents & connectors
Which document governs this vent, whether an existing chimney can be inherited, and how the connector gets from the appliance to it.
15 screens
Ducts, plenums & dampers
What the duct is made of, where it may run, and which damper belongs in which rated assembly.
19 screens
Hazardous & special-process exhaust
The occupancies where ordinary exhaust rules stop and a process-specific rate, interlock or separation takes over.
4 screens
Smoke control & rated assemblies
Whether you are in a smoke-control system, which method it is, and what has to be proven before occupancy.
10 screens
Equipment, access & installation
Clearance, access, condensate and the installation details that get caught at rough-in instead of at design.
1 screen
Plumbing
Where a plumbing value-engineering idea turns into a code or maintenance problem.
11 screens
Electrical & recertification
The definitions that decide a panel schedule argument, and the records a Miami-Dade electrical recertification actually turns on.
19 screens
Permits, comments & AHJ
What a review comment is really asking for, and whether the work needed a mechanical permit in the first place.
Field knowledge map: Field knowledge. Working PDFs and field guides: Resources · Miami-Dade permit resources · Which book governs · What to send. Español: Herramientas de campo.
1 screen
Start here
Before any screen below is worth running: is the basis for the answer actually established?
Where the criteria live. Nothing governs this screen. It is a documentation-readiness record, not a code check — it tells you whether you are allowed to trust any answer you are about to produce.
The one screen in this group
01 · Documentation basis · Run this first
Project basis & evidence readiness record
Every other screen on this page answers a technical question. This one answers the question that comes before it: is the basis for that answer actually established, or are you about to produce a confident number on an unconfirmed foundation?
Documentation-readiness screen only. It does not determine code compliance, permit approval, design sufficiency, construction acceptance or professional responsibility. Copy the record into your own file; if the gaps are ours to close, send the background.
13 screens
Ventilation & outdoor air
How much outdoor air the space needs, where it enters, and whether the path you drew counts.
Where the criteria live. Model IMC Chapter 4 and Table 403.3.1.1. Healthcare leaves Chapter 4 for ASHRAE 170 and IMC 407. Miami-Dade reviews the Florida Building Code, Mechanical, 8th Edition (2023), based on IMC 2021 — not the 2024 model these screens teach.
Ventilation hub · ASHRAE 170 rooms · Free Chapter 4 PDF
All 13 screens in this group
02 · IMC Table 403.3.1.1 (2024 model)
Outdoor-air occupancy estimator
Breathing-zone outdoor air (Vbz) = people rate × people + area rate × floor area. This is not the system outdoor-air total and not an ASHRAE 170 healthcare calculation.
Healthcare / I-2: ASHRAE 170 / IMC 407. Garages: use the 404 tool below. Free guide: Chapter 4 PDF.
03 · IMC 403.3.1.1
Zone outdoor air (breathing zone ÷ effectiveness)
Educational. Zone outdoor air (Voz) = breathing-zone outdoor air (Vbz) ÷ air-distribution effectiveness (Ez). Not a sealed outdoor-air design. Multi-zone system efficiency is not computed here.
2024 IMC 403.3.1.1.1. Do not claim Ez 1.0 for warm ceiling supply without the ΔT / throw checks. Hub.
04 · IMC 403.3.2
Equation 4-9 whole-house outdoor air
Educational 2024 IMC model-code screen. Whole-house outdoor air (QOA) = 0.03 × floor area (ft²) + 7.5 × (bedrooms + 1). Check the adopted edition and local amendments before using the result on a project. This is not a fan selection.
2024 IMC §403.3.2.1, Eq. 4-9, model-code educational screen. Check occupancy, building height, applicable exceptions, adoption and amendments. Corridors and common areas need a separate check. ICC model text · Hub.
05 · IMC 401 vs 403 educational
Natural vs mechanical outdoor air
Chapter 4 is a method question before it is a cfm question. An operable window is not Table 403.
Educational. Healthcare / I-2 follows ASHRAE 170 / IMC 407. Garages follow IMC 404, not Table 403.
06 · IMC 401.4
Outdoor-air intake location
Educational 2024 IMC §401.4 geometry screen. The 25-ft-above alternative is limited to a street, alley, parking lot or loading dock; a nearby contaminant source has a separate 3-ft-below route. Measure from the nearest street edge.
Model 2024 IMC §401.4; confirm adopted edition. Factory-built listed dwelling-unit combo fittings have a separate exception. Flood: IBC 1612. OA hub.
07 · IMC 401.5
Intake mesh vs Table 401.5
Educational. Measure the actual opening — not the brochure. Hurricane-prone: AMCA 550 is a different question.
2024 IMC Table 401.5. AMCA 550 still required in hurricane-prone regions. 401.5 hub.
08 · IMC 403.2.1
Can this air be recirculated?
Educational. Recirculated air does not count toward minimum OA. Not a system selection.
2024 IMC 403.2.1–403.2.2. Recirculation limits.
09 · IMC 402
Natural ventilation 4% screen
Compare measured net openable area with the model-code route. An adjoining-room or below-grade opening has additional geometry.
Model 2024 IMC 402 screen only. Confirm the adopted edition and amendments; mechanical ventilation may supply a deficit. 402 hub · ICC explanation.
10 · IMC 405.1
Outdoor air during occupancy
Ventilation must run when the space is occupied. Outdoor air only at full cooling is the comment.
Educational. 405 hub.
11 · IMC 501.4
Pressure / makeup-air check
Exhaust-only rooms need a path. Door undercuts are not a strategy for large offsets. Type I hoods still use 508.
Educational. 501.4 hub · 508 kitchen.
12 · IMC 404 · Daily Code Talk #38
Enclosed-garage ventilation estimator
Full-On ≥ 0.75 cubic feet per minute per square foot (cfm/sf). Automatic carbon monoxide / nitrogen dioxide (CO/NO₂) systems also need Standby ≥ 0.05 cfm/sf. Open-garage definitions are a building-code question, not this math.
13 · IMC 406.1
Attic / crawl ventilation check
Natural openings per the building code, or mechanical exhaust of at least 0.02 cfm per square foot with supply air and a relative-humidity (RH) control that enables above 60%. “Per code” is not math.
Educational. 406 hub.
14 · IMC 407
Healthcare occupancy check
A medical office is not automatically ASHRAE 170 (healthcare ventilation). Occupancy first. Using the ordinary office outdoor-air table on a Group I-2 (hospital / nursing) set is a path error.
Educational. 407 hub · healthcare.
12 screens
Kitchen, grease & hoods
Which hood type the cooking actually requires, and everything the grease duct has to satisfy after that.
Where the criteria live. Model IMC Chapter 5, Sections 505 through 508 — plus NFPA 96 by reference, and the hood listing, which routinely governs over the prescriptive text. The hood type follows the contaminant, never the room name.
Kitchen exhaust hub · Chapter 5 field guide
All 12 screens in this group
15 · IMC 505–508
Kitchen Type I / Type II pathfinder
The hood type follows the contaminant, not the room name. Pick the cooking that actually happens.
Educational classification against the model IMC. More: kitchen exhaust hub.
16 · IMC 505 vs 507
Domestic vs commercial cooking check
Looks residential is not a code path. Occupancy and how it is used decide 505 vs 507.
Educational. 505 vs 507 hub · 506–508.
17 · IMC 507.1
Is this “no hood” path listed — or just hoped?
Select the specific model 2024 IMC 507.1 path. A complete UL 710B recirculating system, an integral downdraft combination, reduced-grease electric equipment, and heat/moisture-only equipment have different evidence and ventilation conditions. Confirm the locally adopted edition.
2024 IMC 507.1. Confirm adopted edition. Also 507.1.1 interlocks. Hood exceptions.
18 · IMC 507.1.6
Does this hood overhang 6 in — or is cfm supposed to fix the geometry?
Canopy hoods need 6 in overhang on each open side. Model 2024 IMC 507.1.6.1 allows a side to be flush only when a noncombustible wall or panel closes that side to the appliance. The front lip and noncanopy dimensions remain separate checks.
Model 2024 IMC 507.1.6.1. Confirm adopted edition, local amendments and the hood listing. ICC section · Hood overhang.
19 · IMC 507.2.8
How high is the filter above this cooking surface?
Educational. UL 1046 grease filters. Minimum height from cooking surface to lowest filter edge: 6 in with no exposed flame; 2 ft with exposed flame/burners; 3.5 ft with exposed charcoal/charbroil. 45° from horizontal plus a drip tray. Mixed duty: size the whole hood to the highest-duty appliance. This is not a hood design.
2024 IMC 507.2.8–507.2.11. Confirm adopted edition. Also 507.2 construction. Type I filters.
20 · IMC 508
Kitchen makeup-air equality check
Replacement air has to be approximately equal to exhaust and actually available when the hood is on. Transfer air is not a slogan.
21 · IMC 506.3
Welded 16 ga, UL 1978, or wrap — and is the leakage test before concealment?
Educational. Steel 16 gage (0.0575 in) or stainless 18 gage (0.0450 in), or listed UL 1978 factory-built. Liquid-tight welds. 500 fpm. 18 in to combustibles when no enclosure. Light test and water spray before shaft, wrap, or coatings hide the joints. This is not a grease-duct design.
2024 IMC 506.1–506.3.6. Confirm adopted edition. Also 506.3.13. Grease duct construction.
22 · IMC 506.3.7
Is this grease duct sloped 2% — and can someone clean every 20 ft?
Educational. Continuous slope toward the hood or a reservoir: 1/4 in per 12 in (2%). Over 75 ft horizontal: 1 in per 12 in (8.3%). Cleanouts max 20 ft and within 10 ft of turns >45°. 12×12 liquid-tight, 1500°F gaskets. This is not a grease-duct design.
2024 IMC 506.3.7–506.3.9. Confirm adopted edition. Also 506.3.11. Slope and cleanouts.
23 · IMC 506.3.13 · Daily Code Talk #62
Grease-duct termination check
40 in above the roof. Wall outlets are a special path. Dimension intakes and property lines — “per code” is the comment.
Educational 2024 IMC. Termination hub · Daily Code Talk.
24 · IMC 506.4.2
Type II termination distances
Educational screen for a Type II (heat/moisture) hood outlet. Not a termination design. Confirm the adopted code edition.
Model 2024 IMC §506.4.2. Separate intake/exhaust separation duties may apply under other sections; this Type II clause does not itself state a 10-ft intake distance. Confirm adopted edition and manufacturer instructions. Type II ducts hub.
25 · Kitchen + plumbing
Hood vs interceptor check
Type I on the mechanical sheets without a grease path on the plumbing sheets is two comments.
26 · IMC 502.20
Are the inlets within 12 inches of the chemicals — and is it on whenever occupied?
Educational. Manicure/pedicure: local exhaust per Table 403.3.1.1 Note h. No factory collar: inlets within 12 in horizontally and vertically of where chemicals are applied. Run whenever the space is occupied. This is not a salon design.
2024 IMC 502.20. Confirm adopted edition. Also 502.8. Salon exhaust.
7 screens
General & process exhaust
Whether an exhaust system is required at all, where it may discharge, and what may be recirculated.
Where the criteria live. Model IMC Chapter 5, Sections 501 through 504 and 510 through 513. Discharge location is a Chapter 5 question; the intake it must stay away from is a Chapter 4 question. Both get checked against the same roof.
Exhaust discharge · Chapter 5 field guide
All 7 screens in this group
27 · IMC 502
Required-exhaust check
Table 403 is not the 502 checklist. If the process makes bad air, you owe exhaust.
Educational. 502 hub.
28 · IMC 501.3
Exhaust discharge check
Kitchen grease is IMC 506.3.13. Dryers are IMC 504. This is the rest of the exhaust — and the outdoor-air intake next to it.
29 · IMC 504
Dryer-exhaust check
First check whether the selected dryer is listed and labeled condensing (ductless). A dryer requiring an exhaust duct must follow the duct and termination rules.
2024 model IMC 504.1 and 504.9.6; confirm adopted edition and exact model listing. Dryer hub · Commercial / shaft · ICC model section.
106 · IMC 504.10–504.11
Does the common dryer shaft have a damper — or an offset?
Check the selected machines first. Listed and labeled condensing (ductless) dryers have a 504.1 exception. Ducted commercial and shared-shaft systems still need their detailed checks; this is not a shaft design.
2024 model IMC 504.1, 504.9.6 and 504.10-504.11. Confirm adopted edition and model listings. Domestic dryer exhaust · Commercial / shaft.
30 · IMC 509
Hazardous-exhaust trigger
General exhaust is not 509. Name the trigger before you draw a shaft.
31 · IMC 510.1.3
Dust recirc 3-part check
Educational. All three or exhaust outdoors. Not a collector selection and not an air-quality permit.
2024 IMC 510.1.3. Hub.
32 · IMC 513
Energy-recovery (ERV) eligibility
Name the exhaust airstream and heat exchanger. Section 513.2 restricts several streams but has a sensible-only, coil-type heat exchanger exception.
2024 model IMC 513.1-513.4; confirm adopted edition and selected equipment. Energy recovery guide · ICC model section.
2 screens
Combustion air
Whether the appliance room can actually breathe — and which book says so.
Where the criteria live. Not the Mechanical code. Chapter 7 of the Mechanical code is two sections long — 701.1 Scope and 701.2 Dampered openings — and carries no sizing method. Gas-fired appliances route to IFGC Section 304, adopted in Florida as the Florida Building Code, Fuel Gas. Oil-fired routes to NFPA 31, solid fuel to the listed manufacturer instructions.
Combustion air hub · Combustion air field guide
All 2 screens in this group
33 · FBC Fuel Gas 304 · IFGC 304 · NFPA 31
Combustion-air method check
Selected 2024 IFGC gas methods for education; check the adopted fuel-gas code. Combined indoor/outdoor air and engineered designs need separate review. Direct-vent appliances follow their listing. Nominal louver size is not free area.
34 · Mechanical 701.2 · FBC Fuel Gas 304
Dampered combustion-air screen
Can the appliance fire while the required air path is closed? Educational — not an opening-size calc.
Educational. 701 hub.
22 screens
Chimneys, vents & connectors
Which document governs this vent, whether an existing chimney can be inherited, and how the connector gets from the appliance to it.
Where the criteria live. Model IMC Chapter 8 sets the general venting rule and then routes whole appliance categories elsewhere: gas-fired to the adopted fuel gas code, oil-fired to the referenced oil-burning equipment standard, solid fuel to listed manufacturer instructions, metal chimneys to the referenced chimney standard. A vent size carried over from a different route is an error that survives all the way to the roof.
Venting hub · Free four-gate acceptance PDF
All 22 screens in this group
35 · IMC 801.1
Which code actually governs this vent?
Educational. Confirm fuel first. Gas-fired appliances vent under the International Fuel Gas Code (IFGC), not directly through IMC Chapter 8. Oil coordinates with NFPA 31. Chimney, vent, connector, and liner are not interchangeable terms.
2024 IMC 801.1. Confirm adopted edition. Also 801.2 / NFPA 31. Venting scope.
36 · IMC 801–804
Venting category
Name the category before you copy a clearance. Educational pathfinder — not a vent design.
37 · IMC 805 / 806
Chimney pathfinder
Factory-built is a listed system. Metal is NFPA 211. A line on M-101 is neither.
38 · IMC 801.6
Is this vent at least as big as the collar — by area?
Educational. For a single appliance, chimney or vent minimum area equals the appliance connection unless Chapter 8 or an approved engineered system says otherwise. Check cross-sectional area, not matching pipe sizes. This is not a size calculator.
2024 IMC 801.6. Confirm adopted edition. Minimum vent size.
39 · IMC 801.7
Is this flue too large for the solid-fuel appliance?
Educational. For wood, pellet, coal, or similar, flue area cannot be greater than three times the appliance flue-collar or outlet area. Oversizing is the failure mode. Check by area, not matching diameters. This is not a size calculator.
2024 IMC 801.7. Confirm adopted edition. Also 801.11 dedicated flue and 801.6 minimum area. Solid-fuel flue size.
40 · IMC 801.11
Is this flue dedicated for the solid-fuel appliance?
Educational. A fireplace, wood stove, or other solid-fuel appliance cannot share a chimney passageway that is already venting another appliance. “It looks unused” is not a dedicated flue.
2024 IMC 801.11. Confirm adopted edition. Also run abandoned openings and 801.18 four gates. Dedicated solid-fuel flue.
41 · IMC 801.10
Can this appliance connect to the fireplace flue?
Educational. Factory-built and masonry fireplace flues are different paths. Two gates: listed for that flue type, and still inspectable and cleanable after trim is in. The noncombustible seal below the connection is not optional.
2024 IMC 801.10. Confirm adopted edition. Also 801.11 dedicated flue. Fireplace flue connection.
42 · IMC 801.12–801.13
Is the cleanout below the connector — and still accessible?
Educational. Connector entrance at least 12 inches above the lowest interior of the flue. Masonry cleanout: 6 inches high, upper edge at least 6 inches below the lowest inlet, tight-fitting noncombustible cover. “Connect to existing chimney” without those elevations is not a detail.
2024 IMC 801.12–801.13. Confirm adopted edition. Chimney cleanouts.
43 · IMC 801.17
Is leftover chimney space being used as a second flue?
Educational. The space around a flue lining or other vent installed inside a masonry chimney cannot vent another appliance. Leftover space is not a second flue. A second path needs a separately designed and approved liner.
2024 IMC 801.17. Confirm adopted edition. Annular space.
44 · IMC 801.18
Can this existing chimney be reused?
Educational. “Existing chimney to remain” is not a design. When an appliance is disconnected or a new one is connected, four gates apply: size, passageway, cleanout, and clearance.
2024 IMC 801.18. Gas appliances also follow the fuel-gas code. Existing chimneys.
45 · IMC 801.18.2
Is a cleaning invoice being treated as the reuse decision?
Educational. Cleaning and continuity are separate questions. The passageway must be free of obstructions and combustible deposits, and the liner or inner wall must be continuous and free of cracks, gaps, and perforations. A sweeping invoice is not acceptance.
2024 IMC 801.18.2. Confirm adopted edition. Also 801.18.4 clearance. Flue passageway.
46 · IMC 801.18.1
Was the remaining load re-evaluated after an appliance came off this chimney?
Educational. Reusing the chimney is not keeping the same size. Evaluate both draft and condensation. Bigger is not automatically safer. Smaller is not automatically acceptable. This is not a size calculator.
2024 IMC 801.18.1. Confirm adopted edition. Also 801.7 3:1 cap. Existing vent size.
47 · IMC 801.8
Where did the old appliance connect?
Educational. Abandoned chimney or vent openings have to be closed by an approved method. “Cap by contractor” is not a detail.
2024 IMC 801.8. If the chimney stays in service, also run the four gates. Abandoned openings.
48 · IMC 803.10.1–803.10.5
Does this connector clear the four geometry checks?
Educational. Independent support; horizontal single-wall length ≤ 75% of chimney/vent height; stop at the inner face of the liner; continuous rise of at least 1/4 inch per foot (2%). Daily Code Talk example: 20-foot chimney → 15-foot max horizontal single-wall run.
2024 IMC 803.10.1–803.10.5. Confirm adopted edition. Connector geometry.
49 · IMC 803.10.6
What clearance does this connector need?
Educational. Table 803.10.6 is the starting minimum. If the appliance listing says a different number, the labeled clearance governs. Reductions only under IMC 308 — not improvised sheet metal. Check the full route, not just the appliance.
2024 IMC 803.10.6 / 308. Confirm adopted edition. Connector clearance.
50 · IMC 803.10.4
Can this connector pass through that wall?
Educational 2024 model IMC screen. Chimney connectors cannot pass through floors, ceilings, or fire-resistance-rated wall assemblies. A combustible nonrated wall needs a listed pass-through or a named Table 803.10.4 system. A clearance number alone is not the assembly.
2024 IMC 803.10.4. Table systems A–D are 12 / 9 / 6 / 2 inch clearances — each with its own liner and insulation. Connector pass-through.
51 · IMC 802.5–802.6
Does this Type L vent clear both height checks?
Educational. Two independent checks: 2 feet above the roof and 2 feet above anything within 10 feet (802.5), plus 5 feet of vertical height from the flue collar (802.6). Direct-vent, outdoor integral, and pellet follow their listings instead of the 5-foot rule.
2024 IMC 802.5–802.6. Confirm adopted edition. Vent termination height.
52 · IMC 802.9
Does this door swing into the vent terminal?
Educational. A door cannot swing within 12 inches horizontally of an appliance or equipment vent terminal. Measure the full leaf swing. A doorstop or closer does not create the clearance.
2024 IMC 802.9. Confirm adopted edition. Door swing.
53 · IMC 805.4–805.5
How many elbows are already in this chimney?
Educational. Factory-built chimneys with offsets: no part more than 30 degrees from vertical, and no more than four elbows in the whole assembly. A field elbow to miss a beam still counts. A strap is not a structural design.
2024 IMC 805.4–805.5. Manufacturer instructions may be tighter. Chimney offsets.
54 · IMC 801.14
Is the appliance on the inlet side of the power exhauster?
Educational. Connect on the inlet side. Joints and piping on the discharge (positive-pressure) side must be listed for positive pressure per the exhauster manufacturer. A fan symbol in a natural-draft detail is not that review.
2024 IMC 801.14. Confirm adopted edition. Also 801.9 and 804.3. Exhauster connection.
55 · IMC 804.3.6–804.3.7
Was this power venter sized by the manufacturer — or by CFM?
Educational. No natural-draft appliance on the discharge side. Size the exhauster and the vent as one system from the manufacturer’s method — not a nominal CFM. Do not defer final sizing to field selection.
2024 IMC 804.3.6–804.3.7. Confirm adopted edition. Also 801.14 inlet side. Exhauster sizing.
56 · IMC 801.2 / 801.2.1
If this is oil-fired, is NFPA 31 on the set?
Educational. Every fuel-burning appliance needs an approved path matched to that appliance. Oil-fired also coordinates with NFPA 31 (sizing, draft, liner, blocked-vent protection). A Type I hood is IMC 507, not 801 venting. “Vent to exterior” is not a design note.
2024 IMC 801.2 / 801.2.1. Confirm adopted edition. Oil-fired venting.
15 screens
Ducts, plenums & dampers
What the duct is made of, where it may run, and which damper belongs in which rated assembly.
Where the criteria live. Model IMC Chapter 6. The damper questions cross into the building code: the assembly rating is an IBC question, the damper that protects it is an IMC question, and the listing decides the rest. Get the assembly type wrong and the correct damper is still the wrong damper.
Duct systems hub · Chapter 6 field guide
All 15 screens in this group
57 · IMC 601
Return-air location screen
Where is the return actually sitting? Educational 601 pathfinder — not a duct design.
Educational. Return from a room cannot exceed the supply to that room. 601 hub.
58 · IMC 601.4
Can this exhaust duct, chimney, or vent pass through the return plenum?
Educational 2024 IMC 601.4 screen. Positive-pressure exhaust has a narrow ceiling-return exception; chimneys and vents have three different routes. Identify the system before choosing an exception.
2024 IMC 601.4. Contamination prevention.
59 · IMC 601.5
Is the undercut big enough — or do you need a jump duct?
Educational. Closets under 30 square feet: 1½-inch undercut, louvered door, or ≥ 30 in² net free area. Other rooms: a field recommendation of about 1 in² of transfer opening per 1 cfm delivered — not a code minimum. A ¾-inch undercut at a 32-inch door is about 24 in² gross. This is not a duct design.
2024 IMC 601.5. Confirm adopted edition. 1 in²/cfm is a Daily Code Talk field recommendation, not a code minimum. Also 601 corridors. Undercuts & jump ducts.
What to send, by job type
60 · IMC 603.18
Can this supply be balanced — and is it in a wet-room floor?
Educational. Air devices are not finish items. Supply-air adjustment in the branch or at each device, with access. Floor registers: 200 lb on a 2-inch disc. No floor devices in IBC wet-room toilet/bathing rooms. Exception: dwelling units.
2024 IMC 603.18–603.18.2. Confirm adopted edition. Also 608. Registers and grilles.
61 · IMC 601.3
Is this stair fan on the general HVAC?
Educational. Exit-enclosure ventilation follows one of three 601.3 arrangements and stays independent of other building ventilation. Tying a stair fan into toilet exhaust or a rooftop unit that also serves the corridor is the usual redline. This is not a stair-pressurization design.
2024 IMC 601.3. Confirm adopted edition. Also 607.5.3. Exit enclosure ventilation.
62 · Duct velocity screen
Duct velocity screen
Cubic feet per minute (cfm) and duct size first. Noise and external static pressure (ESP) follow. Educational ranges — not a duct design.
Educational. SMACNA/ASHRAE practice ranges used as screens, not code limits. Calculation support · 603.
63 · IMC 602.3
What evidence supports this material in the plenum?
Educational 2024 IMC 602.3 screen. Exposed foam finish or trim has two test gates; protected foam uses a different exception. Plastic pipe, insulation and discrete products have separate listing rules. Flood-zone plenums need a separate elevation or flood-resistance check.
2024 IMC 602.3.7–602.4. Confirm adopted edition. Also 602 overview. Plenum materials.
64 · IMC 604.11–604.12
Is the cooling wrap a vapor retarder — or just R-value?
Educational. Moisture, not thermal. External insulation on cooling ducts: 0.05 perm maximum or 2-mil foil, seams sealed. Exterior also needs an approved weatherproof barrier. One does not replace the other.
2024 IMC 604.11–604.12. Confirm adopted edition. Also 604 location / R-value. Vapor retarder.
65 · IMC 603.8
Is this duct in the earth — and was it leak-tested before burial?
Educational. Underground ducts must be approved for that use. Uncoated metal: at least 2 in of concrete. Slope 1/8 in per foot to drainage. Test before burial (including IECC leak testing). Not in or within 4 in of earth unless 603.8 is met. This is not an underground-duct design.
2024 IMC 603.8 / 603.13–603.14. Confirm adopted edition. Also flood and weather. Underground ducts.
66 · IMC 607
Fire / smoke damper pathfinder
The assembly type controls the damper. A typical that says “F/S where required” is why the comment exists.
Educational 2024 IMC model §§607.5–607.7. Verify adopted edition, local amendments, the rated plan, tested assembly and product listing. ICC model source.
67 · IMC 607.5.3
Was the damper omitted because the building is sprinklered?
Name the fire partition and the specific model 2024 IMC 607.5.3 path. Sprinklers alone do not remove the fire damper. Corridor, mall, small-duct and continuous-duct exceptions have different conditions; smoke-damper and penetration duties remain separate.
Model 2024 IMC 607.5.3 screen; confirm the adopted edition and amendments. Independently check 607.5.4 smoke/corridor protection and 607.1.2 penetration details. Assembly-first · Fire partitions.
68 · IMC 607.5.5
What does this shaft carry — and did someone put a damper in it?
Educational 2024 IMC §607.5.5 screen. A shaft opening has separate fire-damper and smoke-damper decisions. The exhaust-subduct routes share geometry and continuous upward-flow facts, but the smoke-damper route has additional occupancy, sprinkler and exhaust-use conditions.
2024 IMC model §607.5.5. Confirm adopted edition and amendments. Prohibited-damper systems, approved smoke control, partial-height shaft bottom protection and penetration firestopping require independent checks. Shaft dampers.
69 · IMC 607.6
Does this system run during a fire — and is the CRD listed for that?
Educational 2024 IMC §607.6.2.1 screen. Dynamic labeling is the base route for a fan-on fire design. A static CRD has narrowly conditioned detector or shutdown paths; the actual tested assembly, product listing and fire sequence still control.
2024 IMC model §607.6.2.1.2. Confirm adopted edition and amendments. Horizontal assemblies.
70 · IMC 607.4
Can someone find this damper, open it, and read the label?
Educational. A scheduled damper is not complete. Access: 12×12 door or a removable duct section for fusible-link / internal-operator dampers. Access cannot cut the assembly rating. Exterior label, 1/2-inch letters: FIRE/SMOKE DAMPER, SMOKE DAMPER, or FIRE DAMPER. This is not an access-panel design.
2024 IMC 607.4–607.4.2. Confirm adopted edition. Also 607.5. Damper access.
71 · IMC 607.7
Where can flex cross?
Identify the product first. Model IMC 603.6.2.2 bars flexible air connectors through any wall, floor or ceiling. Section 607.7 bars flexible air ducts and connectors through fire-resistance-rated assemblies; a smoke designation alone does not establish that rating.
Educational. No short-run allowance. 607.7 hub.
19 screens
Hazardous & special-process exhaust
The occupancies where ordinary exhaust rules stop and a process-specific rate, interlock or separation takes over.
Where the criteria live. Model IMC Sections 502, 509 and 510, with the Fire Code and the material's own listing close behind. These rates are process rates, not comfort rates — and most of them come with an interlock or a shaft-separation requirement that gets value-engineered out and then fails inspection.
Hazardous exhaust · Send the process description
All 19 screens in this group
72 · IMC 509.4
Can this hazardous-exhaust manifold use the laboratory exception?
2024 model IMC 509.4 bars incompatible materials in one hazardous-exhaust system and generally bars other duct systems in a hazardous-exhaust shaft. Its laboratory exception has eight cumulative conditions. Identify each condition before treating a shared path as a candidate.
2024 IMC 509.4. Confirm adopted edition. Also 509 overview. Hazardous exhaust shafts.
73 · IMC 502.8
Which hazardous-material exhaust rule applies to this space?
An under-MAQ inventory does not remove the any-quantity negative-pressure rule for gas rooms, gas cabinets and exhausted enclosures. Storage, dispensing/use, point capture and hazardous production materials (HPM) follow different 2024 model IMC paths.
2024 IMC 502.8–502.10. Confirm adopted edition. Also 509.4. Hazmat exhaust.
74 · IMC 304.5
Natural, mechanical, or engineered — and are there two openings, ceiling and floor?
Educational 2024 IMC 304.5 screen. For natural ventilation, each of the two permanent openings needs at least 0.5 square foot net free area per 1,000 cubic feet of room volume. The upper and lower openings are in the same exterior wall. This is not a hydrogen-system design.
2024 IMC 304.5. Confirm adopted edition. Also 502.3–502.5. Hydrogen ventilation.
75 · IMC 502.16
Inlets low, outlets high — and does fueling die when exhaust fails?
Educational. CNG / LNG / hydrogen repair: mechanical exhaust with inlets low, outlets high, rate based on room volume, automatic shutdown of fueling on exhaust failure. Hydrogen also NFPA 2. Do not copy the gasoline 18-inch rule. This is not a repair-garage design.
2024 IMC 502.16. Confirm adopted edition. Also 502.1.2. CNG repair exhaust.
76 · IMC 502.1.2
Is the inlet within 18 inches of the floor — or only a high canopy louver?
Educational. Fuel-dispensing: bottom of exhaust or inlet openings ≤ 18 in above the floor. Gasoline vapor is heavier than air. Hydrogen is the opposite (304.5). This is not a fuel-station design.
2024 IMC 502.1.2. Confirm adopted edition. Also 304.5. Fuel-dispensing exhaust.
77 · IMC 502.7
Does the spray gun die when the fan dies — and is air going outdoors?
Educational 2024 model IMC. Exhaust during and after spraying; interlock the spray equipment. Recirculation is a narrow makeup-air exception requiring particulate removal, vapor below 25% LFL, approved monitoring, high-vapor alarm and spray shutdown, and automatic exhaust of 100% of the IMC 509 volume if the monitor shuts down. Manned spraying needs additional life-safety documentation.
2024 IMC 502.7. Confirm adopted edition. Also 503. Spray-finish exhaust.
78 · IMC 502.12
Is pickup at the floor — at least 1 cfm per square foot?
Educational. Enclosed Class I organic coating: ≥ 1 cfm per square foot of solid floor, pickup at floor level, discharge outdoors, clean makeup that sweeps the floor. This is not a coating-booth design.
2024 IMC 502.12. Confirm adopted edition. Organic-coating exhaust.
107 · IMC 502.6
Which dry-cleaning exhaust path and measured rate apply?
Type II dry-cleaning needs at least 1 cfm per square foot in every dry-cleaning and drying room, automatic operation with equipment and manual controls. Type IV/V needs at least 100 fpm through the open loading door, or the precisely located hood at 100 cfm per square foot of loading-door area.
2024 IMC 502.6. Confirm adopted edition. Distinct from 502.12 coating. Dry-cleaning exhaust.
79 · IMC 502.11
Is the projector collar hard-connected — or capped in the return?
Educational. Factory collar: hard-connect and size to the manufacturer. No collar: electric-arc ≥ 200 cfm per lamp; xenon ≥ 300 cfm per lamp, housing ≤ 130°F. Dedicated outdoor path. This is not a projector-room design.
2024 IMC 502.11. Confirm adopted edition. Projector exhaust.
80 · IMC 502.14
Do engines run in place — and is there a hose on the tailpipe?
Educational. Areas where vehicles operate: IMC 403 ventilation plus source-capture on the tailpipe where engines run in place. Exceptions: EV-only, one- and two-family dwellings, engines that only move the vehicle in or out. This is not a shop design.
2024 IMC 502.14. Confirm adopted edition. Also 404. Source-capture exhaust.
81 · IMC 510.1.3
99.9% at 10 microns, under 25% LFL, and a monitor — or outdoors?
Educational. Dust-conveying exhaust defaults outdoors. Recirculation only if all three: 99.9% at 10 µm, vapors < 25% of the lower flammable limit (LFL), continuous approved vapor monitoring. Miss any one → outdoors. This is not a dust-system design.
2024 IMC 510.1.2–510.1.4. Confirm adopted edition. Also 510.1.5. Dust recirculation.
82 · IMC 510.2
Is this outlet over 600°F — and which heat class is on the drawings?
Educational. Exhaust over 600°F is a Table 510.2 chimney, not a kitchen upblast. All classes: 0.127 in (No. 10 MSG). High / medium / low set lining, termination height, and clearance. This is not a chimney design.
2024 IMC 510.2. Confirm adopted edition. Also 805 factory-built. High-temperature exhaust.
83 · ASHRAE 34
Is this A1, A2L, or B — and did the room note change with it?
Educational. ASHRAE 34: A/B toxicity (OEL 400 ppm) and 1 / 2L / 2 / 3 flammability. 2L is still a flammability class. EPA Section 608 still applies to the swap. This is not a refrigerant selection.
ASHRAE 34 / EPA 608 education. Confirm adopted IMC Chapter 11 and ASHRAE 15. Refrigerant safety.
108 · IMC 502.17
Is the buffer on a collector — or only a ceiling fan?
Educational. Rubber-cement / flammable-solvent rooms follow NFPA 91. Buffing machines connect to dust collection so rubber dust cannot accumulate. This is not a collector design and not a cfm.
2024 IMC 502.17. Confirm adopted edition. Recirc is 510.1.3. Tire-buffing exhaust.
109 · IMC 502.18–502.19
Is range exhaust dedicated outdoors — or on the house return?
Educational. Indoor firing ranges: Chapter 4 exhaust plus ventilation that protects occupants, and OSHA 29 CFR 1910.1025 (lead) where it applies. This page does not invent a capture velocity. This is not a range design.
2024 IMC 502.18–502.19. Confirm adopted edition. OSHA 1910.1025 is the lead standard. Firing-range exhaust.
110 · IMC 502.2
Floor-level or in-slab — or a high grille over the hose reels?
Educational. Aircraft fueling / defueling compartments (piping, pumps, separators, hose reels) are ventilated at floor level or within the floor so heavy fuel vapors cannot pool. This is not a hangar design and not a cfm. Fuel-dispensing 18 in AFF is 502.1.2, not this section.
Model 2024 IMC 502.2 calls for adequate ventilation at floor level or within the floor; this screen assigns no fixed cfm rate. Confirm the adopted edition and the design basis. Dispensing 18 in AFF is 502.1.2. Aircraft fueling exhaust.
111 · IMC 502.13–502.15
Is there an inlet in the pit — or only a CO sensor on the floor above?
Educational. Public garages exhaust continuously or per IMC 404 + 403. Where Class I liquids or LP-gas can reach a basement or a pit, provide exhaust so flammable vapor cannot build up in that hole. This is not a pit design and not a cfm.
2024 IMC 502.13–502.15. Confirm adopted edition. Parking floor is 404. Tailpipe is 502.14. Garage-pit exhaust.
112 · IMC 502.7.4-502.7.6
Dip conveyor, electrostatic spray or powder recovery?
Dipping, electrostatic spraying and powder coating have distinct 2024 model IMC rules. Dipping requires fan-failure conveyor shutdown; powder requires atmosphere below half the material's minimum explosive concentration and recovery of suspended powder.
2024 IMC 502.7.3.5–502.7.7. Confirm adopted edition. Spray is 502.7. Floor work is 502.7.7 resurfacing. Dip / powder exhaust.
113 · IMC 502.7 / 502.7.7
During the TI, is the floor work exhausted — or only a box fan?
For flammable floor resurfacing, 2024 model IMC 502.7.7 calls for at least 1 cfm per square foot of area being finished, with approved temporary or portable exhaust to outdoors. Check the finish safety data and actual equipment.
2024 model IMC 502.7.7; confirm adopted edition, product hazards, approved equipment and measured airflow. This is a threshold check, not a ventilation design. Floor-resurfacing exhaust · ICC model section.
4 screens
Smoke control & rated assemblies
Whether you are in a smoke-control system, which method it is, and what has to be proven before occupancy.
Where the criteria live. Model IMC Section 512 and IBC Section 909 — and 909 is where the design method, the special inspection and the acceptance testing actually live. A smoke-control system that was never special-inspected is not a smoke-control system.
Smoke control · Send the review comment
All 4 screens in this group
84 · IMC 512
Is this IBC 909 smoke control — or a 910 vent with a 512 label?
Educational. IMC 512 smoke control is a tenable path for evacuation (IBC 909). IBC/IFC 910 smoke/heat removal is a different intent. A drawings-only submittal without a one-page narrative stalls. This is not a smoke-control design.
2024 IMC 512.1–512.3. Confirm adopted edition. Also 311 / 910. Smoke control.
85 · IMC 512.6
Pressurize, airflow, or exhaust — and does the stair door still open?
Educational. Fully sprinklered pressurization: ΔP ≥ 0.05 in. w.g., limited by IBC door force. Airflow toward the fire ≤ 200 fpm. Exhaust: smoke layer ≥ 6 ft above the egress walking surface. Duration ≥ 20 min or 1.5 × egress time. This is not a smoke-control design.
2024 IMC 512.6–512.8 / 512.4.6. Confirm adopted edition. Smoke-control methods · 512 docs.
86 · IMC 512.5
Does every opening in the smoke barrier have a damper or an auto-closing door?
Educational. Leakage-area ratios: walls 0.00100, exit stairs 0.00035, other shafts 0.00150, floors 0.00050. Ducts/transfers: minimum Class II, 250°F smoke damper. This is not a smoke-control design.
2024 IMC 512.5. Confirm adopted edition. Smoke barriers · 607.
87 · IMC 512.10
Is the smoke-control fan on standby power — and is the panel UL 864 smoke-control equipment?
Educational. Leak test 1.5× design pressure, leakage ≤ 5%. Standby power in a 1-hour-rated room, UPS 15 minutes for volatile memory. Control unit listed UL 864 as smoke-control equipment. This is not a smoke-control design.
2024 IMC 512.9–512.13. Confirm adopted edition. Smoke-control hardware · methods.
10 screens
Equipment, access & installation
Clearance, access, condensate and the installation details that get caught at rough-in instead of at design.
Where the criteria live. Model IMC Chapter 3, plus the appliance listing and the manufacturer installation instructions — which govern over the prescriptive text whenever they are more restrictive. Access is the requirement most often drawn correctly and built incorrectly.
Equipment access · Chapter 3 field guide
All 10 screens in this group
88 · IMC 308
Clearance-reduction check
Listing first. 1 inch minimum to equipment. A note is not an assembly.
Educational. 308 hub.
89 · IMC 306
Equipment access check
30 in × 30 in at the service side, drawn. Roof units need a hatch/walkway on the roof plan, not a general note.
Educational. Access hub · Daily Code Talk.
90 · IMC 306.5
Is there a fixed way up — or is this a portable-ladder job?
Educational. Higher than 16 feet above grade: fixed access. No portable ladders. No walking roofs steeper than 4:12. Receptacle at or near the equipment per NFPA 70. Group R-3 is exempt. This is not a ladder design.
2024 IMC 306.5–306.5.2. Confirm adopted edition. Also 306.1–306.4 service space. Roof equipment access.
91 · IMC 307
Condensate overflow-path check
2024 IMC 307 screen. Determine whether overflow could damage building components, then document the applicable auxiliary method or a narrow exception. Only the water-level-device methods require a device shutdown.
Educational. Condensate hub · Daily Code Talk.
92 · IMC 309
Does this room need heat?
Educational 2024 IMC 309.1 screen: verify the two occupancy and purpose exceptions first. Otherwise, interior spaces intended for human occupancy need an active or passive system capable of 68°F at 3 feet above the floor on the design heating day; portable heaters do not establish that path.
2024 IMC 309. Confirm adopted edition. Temperature control.
93 · Field conversions
Does this number even belong on the sheet?
Educational sea-level identities. Sensible air: Btuh ≈ 1.08 × CFM × ΔT. Standard water: Btuh ≈ 500 × GPM × ΔT. 1 ton = 12,000 Btu/h. ACH = CFM × 60 ÷ volume. They do not size equipment. Glycol, altitude, and wet coils change the factor.
Sea-level textbook identities only. Not a load calculation. Field conversions · ASHRAE 34.
114 · IMC 304.6–304.7
8 ft public / 6 ft private — or a unit on the garage slab?
Educational. Public garages: 8 ft or higher. Vehicles passing below: manufacturer’s installation instructions (MI) plus 1 ft above the tallest door. Exception: impact protection + 304.3 + NFPA 30A. Private garages / carports: 6 ft, or impact protection + 304.3. This is not a mounting design. Ignition elevation / Flammable Vapor Ignition Resistant (FVIR) is 304.3, not this screen.
2024 IMC 304.6–304.7. Confirm adopted edition. 18 in / FVIR is 304.3. Garage appliance mounting.
115 · IMC 304.10–304.11
Within 10 ft of the edge — or is the parapet the “guard”?
Educational. Service points or hatches within 10 ft of an edge with a drop over 30 in: guards 42 in high, 21-in sphere, 30 in past each end, International Building Code (IBC) loads. At grade: level slab 3 in above adjacent grade, or suspend 6 in. This is not a guardrail design. 306.5 is how you get up.
2024 IMC 304.10–304.11. Confirm adopted edition. Access is 306.5. Roof-edge guards. Pad only: 304.10.
128 · IMC 304.8 / 304.10 / 304.12
Boiler room, pad at grade, or unlabeled unit?
Educational. A closet is not IBC protection. Flush with the dirt is not +3 in. “Building” is not an area served. This is not a fire-rated assembly and not a pad design.
129 · IMC Chapter 9 kickoff
Which Chapter 9 door — tower, fireplace, dryer, or kitchen?
Educational. The schedule is not the installation. 901.1–901.4 first: IMC vs fuel-gas code, hazardous location, Group I-2 Condition 2. This is not an appliance selection.
1 screen
Plumbing
Where a plumbing value-engineering idea turns into a code or maintenance problem.
Where the criteria live. Florida Building Code, Plumbing, plus the county's own connection and backflow requirements. In Miami-Dade the point of connection is reviewed by the Water and Sewer Department, not by the building department — a distinction that changes who you are actually persuading.
Plumbing hub · Private well readiness
The one screen in this group
94 · Plumbing VE red flags
Plumbing value-engineering check
Pick the cut that is about to happen. This is a comment/risk classifier, not a fixture-unit calculator.
Educational. More: plumbing VE hub · plumbing.
11 screens
Electrical & recertification
The definitions that decide a panel schedule argument, and the records a Miami-Dade electrical recertification actually turns on.
Where the criteria live. NFPA 70 (the National Electrical Code) as adopted by the Florida Building Code, Electrical — and, for recertification, the county's own inspection and reporting program, which is a records exercise before it is an engineering one.
Electrical recertification · Permit readiness pack
All 11 screens in this group
95 · Miami-Dade electrical recertification
Records pack — not a due-date calculator
MasterBuild does not invent your deadline. The notice does. This checklist builds the package any responsible electrical professional will ask for. Not the same process as Florida’s statewide structural milestone inspection — see electrical vs structural recertification.
Copy this into the intake message
96 · NEC Art. 100 · Sparky #016
Continuous load / demand check
Permanently connected is not automatically a continuous load. Nameplate totals are not demand.
Educational. Hub · Sparky #016.
97 · NEC 100
SCCR vs interrupting rating
Three values: available fault current, the equipment short-circuit current rating (SCCR), and the breaker interrupting rating. Educational screen — not a fault study.
Educational. Missing SCCR is unresolved evidence, not zero risk. SCCR hub.
98 · NEC 100
Readily accessible screen
What do you actually need to reach the disconnect? Educational — not a 110.26 working-space calc.
Educational. Confirm which NEC requirement applies. Access hub.
99 · NEC 100
Branch vs feeder
Where is the final branch-circuit overcurrent device (breaker or fuse)? Educational — not a conductor size.
Educational. Branch vs feeder hub.
100 · NEC 100
Does this package need a neutral?
A ground is not a neutral. Educational — not a conductor size or bonding location.
Educational. Neutral vs ground.
101 · NEC Art. 100 · Sparky #017
Dry / damp / wet check
Classify the location before you pick the enclosure. Outdoor-rated is not a specification.
Educational. Hub · Sparky #017.
102 · IMC 606
Duct smoke-detection check
Return over 2,000 cfm. Combined capacity counts. Risers at 15,000 cfm.
Educational. 606 hub.
103 · IMC 109
May we energize?
Utility release and building-department (AHJ) authorization are different writings. Educational — not a release.
Educational. 109 hub.
130 · NEC 110.14
Terminal, temperature, or torque?
Educational. A correctly sized conductor can still fail at the lug. This is not a feeder calculation. Working-space dimensions from 110.26 are not published here.
110.14 hub · 110.11–110.13 · SCCR.
132 · NEC 110.5
Copper, aluminum, or just “#4”?
Educational. Size alone is not ampacity. This is not a feeder calculation. Working-space dimensions from 110.26 are not published here.
19 screens
Permits, comments & AHJ
What a review comment is really asking for, and whether the work needed a mechanical permit in the first place.
Where the criteria live. Model IMC Chapter 1 as amended locally. The exemption you are relying on is almost always a local amendment or a state bill, not the model text — confirm it in the adopted document before you decide not to pull a permit.
Miami-Dade permit resources · Which book governs
All 19 screens in this group
104 · Plan-review triage
Comment classifier
Pick the kind of comment. Get the hub, the usual drawing miss, and what to send. Not a code opinion on your letter.
Library of typical wording: typical plan-review comments.
105 · Miami-Dade
Does this still need a mechanical permit?
Educational screen from Miami-Dade’s published exemption and HB 803 pages. Not a determination that your job is exempt.
Unincorporated Miami-Dade (folio 30). Municipalities differ. Confirm the live County page. Hub.
116 · Miami-Dade portals
Apply, track, inspect, or recert — which County door?
Educational. Unincorporated Miami-Dade (folio 30). Municipalities differ. This is not a permit application.
Confirm the live County page. Permit portals · How to apply.
117 · Miami-Dade mechanical review
Is the comment outdoor air, grease, or “see the guideline”?
Educational. The County mechanical guideline is a list of code titles. The comment is specific. This is not a plan-review.
Official County PDFs are linked from the hub — we do not host them. Mechanical review map.
118 · Miami-Dade MEP fees
Change-out, hood, temp, or interceptor — which application?
Educational. This screen does not quote dollars. County rates change. Open the live fee sheet the day you apply. Not a fee quote.
Confirm the live County fee PDFs. MEP fee navigator · packet: PDF.
119 · Miami-Dade 8-11(f)
Building recertification notice - which cohort and reports?
Educational. Your notice governs. This is not a determination of exemption and not a recertification. We do not invent a due date.
Confirm YOUR notice. 40-year notice · readiness · records: records pack.
120 · Miami-Dade permit is stuck
Work-with, Code Relief, or switching contractors?
Educational. These are different County doors. This is not a permit, not an as-built certificate, and not a utility authorization.
Confirm the live County page. Work-with · Code Relief · Blower door.
121 · Miami-Dade inspection day
Plumbing final, electrical room, or Fire — which inspection?
Educational. You inspect first. This is not a pass and not a fee quote.
Plumbing inspection-day · Electrical inspection-day · Fire desk.
122 · Miami-Dade closeout
ACH50, duct leakage, or Notice of Commencement?
Educational. These are different tests and a recording. This is not a pass and not a lien opinion.
Blower door · Duct leakage · NOC · Change-out.
123 · Miami-Dade before pour / occupancy
Electrode, TCO, or gas bond?
Educational. These are different doors. This is not a pass and not an occupancy certificate.
Before the pour · TCO · Gas bond.
124 · Miami-Dade clocks and portal doors
Clock, temp power, or the wrong portal door?
Educational. These are different clocks. This is not an extension and not a fee quote.
125 · Miami-Dade workforce housing
Workforce housing — MEP, screen, or septic?
Educational. Expedite is not skipped review. This is not zoning advice and not a Housing Agreement.
126 · Miami-Dade setbacks as MEP
Pad, wall opening, or roof-height projection?
Educational. These are zoning envelopes around mechanical work. This is not a setback table and not a survey.
127 · Miami-Dade zoning procedure as MEP
Variance clock, DIC, or a moratorium?
Educational. These are zoning clocks around mechanical work. This is not a CZAB filing and not a moratorium exemption.
133 · Miami-Dade plan review
GoldKey, MeetQ, or zoning holding mechanical?
Educational. Accepted is not in review. This is not a County form and not a review-date guarantee.
134 · Miami-Dade impact fees
Impact fee — which bucket and which unit?
Educational. This screen does not quote a total and does not compute your fee. County rates change. Open the live schedule the day you apply. Not a fee quote and not an exemption filing.
Confirm the live County schedule. Impact-fee coordinator · packet: PDF. Permit categories: MEP fee navigator.
135 · Miami-Dade first question for developers
First Miami-Dade question — use, envelope, or which desk?
Educational. For builders and developers before the site is priced. This screen does not compute a setback, a parking count, or a fee. We do not copy Chapter 33 lot-size tables and do not certify property lines.
Developer first-question hub · packet: PDF. Zoning as MEP: pad, use, variance.
136 · Miami-Dade zoning checklist
Zoning checklist — which door is still open?
Educational. Dated baseline of the County Zoning Plans Processing checklists. Not a County form. Do not submit this screen to the County. Confirm the live PDFs. We do not copy Chapter 33 lot-size tables.
Zoning-checklist baseline · packet: PDF. Live County: commercial.
131 · IMC 110
Temporary — permit, CO, or just a salamander?
Educational. Temporary is not unpermitted. Do not assume a universal 180-day duration. This is not a temporary-equipment permit.
When the tool is not enough
If the result depends on your actual drawings, send them. The estimator and the pathfinder stop where the engagement starts.
Send Project Background+1 (786) 398-6940 · osmany.portal@masterbuildconsulting.com
MasterBuild provides engineering services under a written scope. Nothing on this page is project-specific engineering advice, a code interpretation for your project, or a representation about permit approval.