CSI Division 07 · Architectural
Insulation Estimating
Area by assembly and R-value across batt, blown, board and foam, with air sealing carried as its own scope and its own inspection.
- SF
- area by assembly and R-value
- BF
- board feet of spray foam
- LF
- rim joist, perimeter, sealing
- LS
- air sealing and detailing
Scope
What we measure.
Measured from
Wall sections, roof sections and the energy compliance documents
- 01Batt · R-21 Walls
- 02Blown · R-49 Attic
- 03Rigid Board · Foundation
- 04Spray Foam · Rim Joist
- 05Air Sealing
Where bids go wrong
What other insulation estimates miss.
Air sealing as a separate scope from insulation, with its own inspection and its own labor.
Rim joists, cantilevers, knee walls and attic hatches — small areas, disproportionate cost.
Thermal bridging and continuous exterior insulation required by the energy code, not the wall type.
Sound batt in interior partitions, which appears on the acoustic schedule rather than the thermal one.
Sample takeoff
How insulation line items come back.
Every quantity is traceable to the sheet it came from, in the units the trade buys in.
- Quantities traced to the sheet they came from
- Waste and productivity carried as visible lines
- Formulas intact — edit any rate
| CSI | Line item | Quantity |
|---|---|---|
| 07 21 16 | Batt — r-21 walls | 3,180 SF |
| 07 21 19 | Blown — r-49 attic | 2,140 SF |
| 07 21 13 | Rigid board — foundation | 860 SF |
| 07 21 29 | Spray foam — rim joist | 240 SF |
| 07 27 00 | Air sealing | 1 LS |
FAQ
Insulation Estimating, answered.
Talk to an estimator
Not a salesperson. Same-day answers on working days.
+1 518 974 7222[email protected]Do you separate insulation types?
Yes. Batt, rigid, spray foam and blown insulation are measured separately by R-value and location.
Is air sealing included?
Air-sealing and fire-rated insulation are measured where the specification calls for them.
Can you use our cost book and labor rates?
Yes, and we prefer it. Your historical costs reflect your crews and your suppliers better than any published average. Send the template and we work inside it.
How does pricing work?
Pricing is per project and quoted before any work starts — no retainer, no minimum volume and no subscription.
Do you sign NDAs?
Yes. Drawings, specifications and pricing are treated as confidential by default, and we sign your NDA on request before any documents change hands.
Start a quote
Need insulation numbers for your next bid?
Pick your project type and send the drawings. We confirm the fee and delivery date within the hour on working days.