5 ms·
Slightly warmer attic in winter doesn't reduce heat loss significantly, but in summer the roof temperature increase is much greater than winter, does measurably
by coryrc 4y ago
Slightly warmer attic in winter doesn't reduce heat loss significantly, but in summer the roof temperature increase is much greater than winter, does measurably increase cooling load in insufficiently insulated houses, and, in aggregate, causes the Urban Heat Island Effect along with road surfaces.
- detourdog 4y agoCurrently most of the insulation I have installed in the attic is in the rafters of the ceiling. probably close to 18" of high density cellulose. The fire sprinkler system is dry. I could add another layer of insulation in the roof rafters or not. The building is from 1931 and I added the sprinkler and more insulation in the attic. My heating load is much greater than my cooling load. Most of the other points don't apply to my situation.
- coryrc 4y agohttps://www.greenbuildingadvisor.com/article/creating-a-conditioned-attic https://www.greenbuildingadvisor.com/article/creating-a-cond...