Venting Rainscreen Into Attic

The attic only has the soffit vents all around the house and the fans on top outside but when the wind is not blowing those whirley birds on the roof don t spin.

Venting rainscreen into attic. To determine the area multiply the length times the width in feet. Only other option would be a split. Here s what the florida building code fbc residential edition says about it. Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.

Venting behind your siding is just as necessary and valuable as venting your attic. Things have been ok low energy bills house very comfortable. Trapped moisture from driving rain or condensation can cause major problems. Gba editor brian pontolilo replies that it s generally fine to vent a rainscreen into an attic although sinclair s building inspector may have other ideas.

In the winter warm moist air seeps into the attic from the living space below. That cuts cooling costs and prolongs shingle life. Malcolm taylor suggests that connecting the rainscreen and attic ventilation might increase the drying potential of the wall assembly. He points out however that a rainscreen is typically 1 2 inch to 3 4 inch deep a function of what material is used to create it and that probably isn t enough to make up the required area for soffit vents.

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. Venting into attic in cold weather you can also add extra moisture to the attic area that could condense on the underside of the roof and cause moisture and possibly mold. Friday june 22 2018. Then divide the total area by 150 to find the total amount of vent space needed for your attic.

Help purchased home 8 years ago with 2 power attic vents. Hot air exhaust vents located at the peak of the roof allow hot air to escape. Especially possible if a front comes through changes the pressures and temperatures. Home clothes dryers don t start out venting into an enclosed space because the building code specifies that the termination of a dryer duct must be outside.

Good ventilation allows the heat and moisture to escape. Exhausting into the attic would be super easy but again i pause with reservation of mold concerns. In the summer good attic ventilation reduces heat buildup. I was thinking about 6 9k btu for the ac unit.

Attic venting process to choose the proper ventilation system for your attic you ll first need to know the total area of your attic. If the inspector is okay with it there is still the question of whether it provides an adequate amount of intake area for effective roof venting.