Foilboard as subfloor insulation

Created by Vicki Marshall, Modified on Fri, 31 Mar 2023 at 01:17 PM by Vicki Marshall

Region: All States

Assessor Question:

I’m doing a Rating and the client has requestion foilboard as their subfloor insulation.
How is this entered into Firstrate5?

TechLink Response:

Emittance for Foilboard is E0.03.

1. Create floor type with the appropriate floor construction (top layer).

2. Add insulation placeholder.

3. Select unventilated reflective (0.05/0.9;E=0.050) with the appropriate air gap.

4. Enter thickness of Foilboard (Polystyrene Expanded) equivalent to declared product value (NOT TOTAL SYSTEM VALUE).

5. Tick reflective subfloor in area properties.