Vented Roof Deck Energy Savings

For the same reason insulation shouldn t touch the roof s underside.

Vented roof deck energy savings.

Additionally during high wind events vented soffit collapse leads to building pressurization and window blowout and roof loss due to increased uplift. This results in significant energy savings compared to figure 1. Take a look at some tips on proper attic ventilation from mr. However if moisture is able to enter the unvented attic space it may lead to roofing panel issues.

Consult with an hvac specialist. The energy needed for air conditioning and heating typically goes up 10 when ducts are in the attic ueno 2003. The energy savings touted by unvented attics can be as high as 20. Warm air that escapes into the attic in winter can warm the roof deck and increase the risk of ice dams.

Ten percent or more hvac energy savings when compared to vented attic construction are widely accepted by the building science community for the unvented attic construction approach if airtight equipment and ducts are located in the attic. In high wind regions particularly in coastal areas wind driven rain is a problem with vented roof assemblies. Wood roofing panels endorsed by the apa usually contain an in service water content of between 4 and 16. The addition of vented eave riser flashing and ridge ventilation completes an energy saving asv system.

A specialist will help you choose the right type of attic venting system for your roof they can help you maximize your energy savings and will ensure that the venting systems are properly placed and installed. Covering up the soffit vents with loose fill or batts which can happen if you stuff insulation along the eaves is a huge no no. 4 ways your roof can save you energy maximize your investment in a new roof or roof repair by paying attention to these four elements of an energy efficient roof that can significantly lower your. The system shown below is the elevated batten system made by boral roofing which uses treated 1 by 2s with high grade plastic pads a vented eave riser flashing and vented weather blocking at the ridge.

When the hvac system is located in a vented attic it is exposed to extremes of hot and cold. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.