Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.
Finishing an attic ventilation.
Habitable rooms must have means for heating the air to at least 68 degrees f measured 3 feet above the floor.
Follow the rule of 7s.
Install air chutes before installing insulation.
Here are some must do tips to follow when finishing your attic.
Hot air exhaust vents located at the peak of the roof allow hot air to escape.
Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.
Other requirements for finished attic spaces natural light.
Habitable rooms must have natural light provided by glazing windows or equivalent equal to at least 8.
Finishing your attic can add space and utility and increase the value of your home as long as it s done properly.
When done without proper planning or adherence to local building codes it can actually reduce the value of your home or stall a sale.
Cut each strip or batt to the exact length of the cavity.
Install new rolled insulation between the wall studs.
Ventilation can be accomplished using various products and techniques.
Install the rolled insulation in the floor by cutting to size pressing into the space between joists and attaching with wire fasteners.
If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of.
Press them in place and staple through the paper to the studs.
Most building codes require a ratio of 1 150 ventilation space to attic floor space.
Enforcement varies but codes typically say that at least half of a finished attic must be at least 7 feet high and that this area must be a minimum of 7 feet wide and 70 square feet.