energy calcs

Roof/Ceiling compliance workflow for FBC-EC R402.1.2, R402.1.4, R402.2, R806, and R806.5.

project setup

project name

code edition

R402.1.2 / R402.1.4 table set

climate zone

compliance path

attic type

R806 / R806.5

attic area (ft2)

ceiling cavity insulation (R)

continuous insulation (R)

above-deck insulation (R)

framing fraction

parallel-path weighting

framing path R

wood path in insulated layer depth

radiant barrier credit

ridge vent (linear ft)

continuous soffit vent area ()

gable vent NFVA (ft2)

use reduced 1/300 ratio where eligible

insulation placement

air-impermeable insulation at roof deck ceiling plane air-sealed

overall compliance

PASS

u-factor result

prescriptive result

venting / unvented result

findings

VERIFIED TABLE