Weatherstrips

German-made Passive House doors use multiple weatherstrips, including magnetic strips, to meet higher standards.

Insulation and weatherstrips But there are very few door models with an R-value close to 10 (which is far less than the R-40 walls or the R-50 ceilings of super-insulated buildings – Passive Solar and Zero Energy Buildings ).

These weatherstrips are critical to reduce to a minimum energy losses due to air leakage.