Weatherstripping & Air-Sealing Verification Checklist PDF

Full QC Checklist+

Verify opening setup, material selection, air-sealing gap sizes, and cost before ordering materials.

✓23 Inspection Points

✓4 Verification Categories

✓Opening Setup+

Every door and window opening was measured on site at its actual rough/finished width and height, not assumed from a plan.
Opening Type (Door vs. Window) matches the real installation — this determines whether the bottom gets a sweep or a 4th side of perimeter seal.
"Identical Openings" count reflects how many separate openings of this exact size exist, not the total opening count for the whole project.
A door's existing weatherstrip or sweep (if any) was removed and the frame inspected for rot or damage before measuring for new material.
Window type (double-hung, casement, sliding) was confirmed to actually have an operable sash perimeter that needs sealing — a fixed picture window does not.

✓Weatherstrip Material Selection+

Weatherstrip Material (V-strip vs. foam tape) matches what is actually being purchased, not just the calculator's default.
For foam tape, the Roll Length selected matches what the supplier actually stocks (10 ft or 17 ft).
Rolls to Buy figure is understood as grouped per material/roll-length combination — V-strip and foam tape rolls never pool into the same count.
Door Sweep / Shoe is turned on only for doors that actually need one — a door with an existing, serviceable sweep doesn't need a replacement counted.
A door wider than the standard 48 in sweep size was flagged for a custom/oversized order rather than assumed to fit a standard unit.
Gap size at the door/window frame was checked by hand before ordering — a badly out-of-square or warped frame may need a different weatherstrip profile than this calculator assumes.

✓Air Sealing (Caulk & Spray Foam)+

Sealant Type (caulk vs. spray foam) matches the actual gap size at each location — caulk for small trim gaps, spray foam for larger gaps like rim joists and sill plates.
Bead/Gap Width entered for each air-sealing run reflects the actual gap measured on site, not a guessed default.
Linear Feet to Seal for each run was measured along the actual joint or gap, not estimated from a room's overall dimensions.
For spray foam, Can Size matches what is actually being purchased (12 oz or 20 oz) — the cost and unit count are priced separately per size.
Tubes/Cans to Buy figures are understood as pooled across every run of the same sealant and size — not rounded up separately for each individual run.
A gap wider than roughly 3 in (too large for a single spray foam pass) was identified for backer rod or a different filling method instead of being entered directly.

✓Installation Quality & Final Check+

Old, hardened, or compressed weatherstripping was fully removed and the frame cleaned before applying new adhesive-backed material.
New V-strip or foam tape was tested for a snug (not loose, not binding) seal by closing the door/window before moving to the next opening.
Spray foam used around a door or window frame was a LOW-EXPANSION / door-and-window-rated formula, not standard high-expansion foam that can bow the jamb and bind the opening.
Caulk or foam joints were tooled or smoothed while wet where visible, for a clean, weather-resistant finish.
Waste / Extra Allowance % was checked against how many openings and air-sealing runs are on this job — a small single-door job needs less buffer than a whole-house draft-proofing pass.
Currency and unit cost entries reflect current local supplier pricing, not a placeholder default.

Inspection Notes+

Use the latest approved drawings, specifications, and site measurements.

Complete all critical checks before proceeding to the next work stage.

Record deviations and confirm rectification where required.

Inspection Notes

Use the latest approved drawings, specifications, and site measurements.

Complete all critical checks before proceeding to the next work stage.

Record deviations and confirm rectification where required.

Use it after collecting the project inputs and again before approving or closing the relevant work stage.

No. It supports verification but does not replace approved drawings, specifications, codes, manufacturer requirements, or professional inspection.