Fine Homebuilding Roof Venting

Finally in wildfire zones floating embers can enter the vents and cause roof fires.

Fine homebuilding roof venting.

The intent of roof venting varies depending on climate but it is the same if you re venting the entire attic or if you re venting only the roof deck. The other halve is a shed roof with a clearstory wall behind it and a vaulted ceiling inside. If you ve got a roof over your latest building project chances are you ve also given some thought to roof venting. In a cold climate the primary purpose of ventilation is to maintain a cold roof temperature to avoid ice dams created by melting snow and to vent any moisture that moves from the conditioned.

Sign up for eletters today and get the latest how to from fine homebuilding plus special offers. It s one of the more confusing aspects of home building and remodeling and even with a large amount of information available it perplexes builders and homeowners alike. Roof venting is one of the most poorly understood aspects of building and remodeling. The intent of roof venting varies depending on climate but it is the same if you re venting the entire attic or if you re venting only the roof deck.

Soffit vents are one of the most popular intake vent styles. It does have sofit venting all away across but i have check at the top of the shed roof portion and there are not signs of any venting at the top. And the roof to be blown off. Roof venting doesn t affect cooling loads it may defy common sense but researchers have not been able to measure any energy savings gained in summer by venting a roof.

If the soffits are wide enough you can remove the existing vents and replace them with 8 in. With 10 of these large vents you ll end up with a more adequate 4 5 sq. So much information has been devoted to the subject of roof venting that it s easy to become confused and to lose focus. Fine homebuilding project guides roofing.

A vented attic where insulation is placed on an air sealed. 80 81 january 6 2016. From fine homebuilding 257 pp. The other ports are vented by gable end vents and a wind turbine at the junction of the 3 sections.

Reprinted with permission from fine homebuilding aug sept 2011 pages 68 72. So i ll start by saying something that might sound controversial but really isn t. Of nfva in the soffits. They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.

Vents which provide 65 sq. Of nfva per vent. Choose the best materials and learn the right techniques to build a sturdy leak free attractive roof on any house. In a cold climate the primary purpose of ventilation is to maintain a cold roof temperature to avoid ice dams created by melting snow and to vent any moisture that moves from the conditioned.