Roofing Material On Hot Roof Closed Attic Systems

Unfortunately the term hot roof is a misnomer as the roof really is not that much hotter than a normal roof.

Roofing material on hot roof closed attic systems.

The most commonly chosen and installed roofing system. Warranties on hot roofs. A technology on the flipside of an overlay is a roof underpinning or sub roof system called a radiant barrier. When your attic is filled with spray foam insulation to create a hot roof your attic s temperature rises because the thermal envelope is shifted to the underside of your roof because ventilation is not present.

Here are some of the pros and cons of each type of roofing system. Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house. This dead space acts as a thermal barrier blocking heat transference from the roof to the interiors below. A hot roof is one where there is.

Most studies show anywhere from 1 to 5 maximum increase in surface temperature during the sunniest part of the day while at night the surface temperature drops faster than a regularly vented roof. Insulating in and around your roof attic space also prevents long term damage from moisture build up or ice damming which results from the warm air trying to escape through the apex of the roof but instead heating up the snow. The theory behind a hot roof system is that rather than allowing heat to escape through your roof you contain it in your attic space which can save on utility costs in theory.