Exterior Wall Insulation, Poly Roll & Sealant Calculator

Exterior Wall Insulation, Poly Roll & Sealant Calculator

This estimator sizes insulation, vapour-barrier poly and acoustical sealant for exterior stud walls or any framed wall assembly where a continuous air-vapour barrier and caulked edges are required by code. By entering wall length, height, total window/door area, and manufacturer coverage values for each product, you can confidently order materials without overbuying.

Wall Insulation, Poly & Sealant Calculator

Wall Length
ft
Wall Height
ft
Openings Area
ft²
Coverage per Insulation Bundle
ft²
Coverage per Poly Roll
ft²
Sealant Coverage per Tube
ft

Results:

Net Wall Area
ft²
Insulation Bundles
#
Poly Required
ft²
Poly Rolls
#
Total Sealed Perimeter
ft
Sealant Tubes
#

Calculator

  1. enter the wall length in feet
  2. the height of the wall in feet
  3. total window/door area to exclude
  4. manufacturer's stated bundle yield
  5. area one vapour-barrier roll covers
  6. lineal feet of bead a tube supplies

Results

  1. wall surface area minus openings in square feet
  2. rounded-up insulation bundle count
  3. vapour-barrier surface area
  4. rounded-up poly roll count
  5. sealed edge length (top + bottom + ends + windows + doors)
  6. tubes of acoustical caulk for the perimeter

Framing the wall from scratch? First tally studs and plates with the Stud Wall Framing Material Calculator.
When the insulation and poly are in place, work out the board count and mud with the Drywall Materials Calculator.

Check manufacturers' labels for accurate coverage values on insulation and sealant.

This calculator is designed for accurate estimates but can be adjusted based on specific wall configurations.

Interior Finishing

Board and Tape
Ceiling Tiles
Flooring
Insulation
Paint and Wallpaper
Spindles
Tiles
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