We have a great archive of helpful articles from our past newsletters. One topic we thought we would share on our blog is about vented roofs and what our recommendation is for our
timber frame homes.
A New/Old Standard-Vented Roofs
From Fall 2006 newsletter
One element of construction has always been important for a healthy, happy and high performing home-- "cold" or "vented" roofs. A vented roof system is an air space (cavity) between the roofing material and roof insulation, specifically between the roofing material and the exterior skin of the roof panel.
Davis Frame Company's standard vented roof system is 1x3 strapping applied to the roof panels at 16" on center in alignment with the roof slope, and then a layer of 7/16" OSB roof sheathing applied to the top of the strapping as the roofing material nail base. This venting system must be accompanied with an eave vent and roof ridge vent to allow air flow through the cavity. This will remove any moisture that could cause deterioration of the roof panels or roofing materials. Airflow is the key to having a "cold" roof and a properly working vented roof system.
What kind of benefits can you expect from a vented roof system? The possibility of ice damming, which can cause roof leaks and shingle lifting will be dramatically reduced. Water leakage through the panel, which can cause interior ceiling water stains and mold, is prevented, providing a healthy home for your family. If you are building in an area that receives cold weather and a lot of snow, a vented roof is a must! Also, increased performance of the roof reduces the heating and cooling needs, which means cost savings for you.
An increased life expectancy of roof panels and roofing materials, and an enhanced performance of both items can be expected with a vented roof system. Both asphalt roofing suppliers and
Structural Insulated Panel (SIPs) companies recommend a vented roof system in any application of their products--in fact, most shingle suppliers will not warrant their product without a vented roof.
Standing seam roof systems benefit from the vented roof as well. The panel manufacturers recommend this system on top of their roof products, allowing any moisture that condensates below the standing seam and/or moisture evaporating out of the home to be removed out through the vented cavity.
When constructing a new home that you expect will last your lifetime it is important that details like a vented roof system, or "cold roof" are incorporated. To maintain a warranty on your new home products, be familiar with their application and/or installation in order to guarantee they will perform to their potential. Remember a good "cold roof" can keep your new home happy, healthy and performing at its best.
If you're interested in learning more about our timber frame packages,
contact us today by calling 1-800-636-0993!