Exterior doors – steel with magnetic weatherstrip?
We are planning a “pretty-good” house for Zone 4 (Virginia). We are shooting for R-25 walls (using Zip-R 1.5 for the thermal break), R-50 ceiling, and a blower door test of 2.0 ACH 50. The finish will be white trim inside and out, with six-panel doors and a traditional look.
The house has three 36″ X 80″ outswing exterior doors with a “nine-lite” in the upper half. It also has a 36″ X 80″ inswing door leading to the garage (no lite), and a 72″ X 84″ center-hinge inswing patio door (full lite). All the doors are well-sheltered by roof overhangs.
Next: what doors to use? My first thought was to spec fiberglass doors with multi-point latching to energize the seals. But after reading Martin’s advice in All About Doors, it struck me that I might get equally good air infiltration performance from a steel door with magnetic weatherstripping. The steel is pretty rigid, and the magnetic weatherstripping should (theoretically) self-energize.
If I can get decent performance from steel doors, I can save several thousand dollars. I would love to do that. Does anyone have any experience with- or advice on steel exterior doors?
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