2021
Up and Running with the Passive House Planning Package (9.7 IP) Module 1 | Class 3 | Surface Exposure
Q: How do you calculate annual the heat loss of a surface? A: QT-srfc = Areasrfc (
In 1. 2. 3. 4.
ft2
)
U-Valuesrfc ( Btu /
hr-ft2-F
)
ft (%)
Gt ( kFhr / yr)
order to calculate the transmission heat loss for each surface of a building, we need to: Determine the surface area Determine the surface’s U-Value Determine the temperature correction factor Determine the annual difference in temperature between inside and outside
bldgtyp | NYPH
NYPH: Up and Running with PHPP
1