Wall and Roof Compliance Calculator

How insulated is your envelope? Is it ECBC compliant?
The wall and roof form most of your envelope, unless you are designing a ‘glass’ building. With a plethora of materials and infinite combinations how do you know the building’s thermal performance?
This calculator allows you to build wall or roof assemblies and evaluate them for thermal performance. Additionally, the tool also performs checks on the assembly for ECBC compliance as per the prescriptive criteria. In case your assemblies do not fulfil the prescriptive criteria, you may use Envelope Trade-off method as an alternative compliance path.
To evaluate, please fill out a few project details, create wall/roof assembly and click ‘Calculate’. You may also save a report by clicking on ‘Generate’.

°N
ECBC
ECBC +
Super ECBC
m2
W/m2-oK
W/m2-oK

Wall Roof
Innermost to Outermost
Outermost to Innermost
# Category Product Density Thickness
1
kg/m3
mm
Changing the assembly type would refresh the calculations below. Generate report to save a copy of the results.
W/m2-oK
Btu/hr-ft2-oF
m2-ok/W
hr-ft2-oF/Btu