Vented Roof Deck Energy Savings

At these low levels the moisture has a negligible effect on the.

Vented roof deck energy savings. 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. Venting the roof deck reduces the average temperature of the roof 1 75 c 5 f which is one third the influence of the colour of the shingles the aspect of the roof direction it faces and 1 36 the influence of geographic location. Take a look at some tips on proper attic ventilation from mr.

Warm air that escapes into the attic in winter can warm the roof deck and increase the risk of ice dams. This results in significant energy savings compared to figure 1. For the same reason insulation shouldn t touch the roof s underside. Consult with an hvac specialist.

Additionally during high wind events vented soffit collapse leads to building pressurization and window blowout and roof loss due to increased uplift. However if moisture is able to enter the unvented attic space it may lead to roofing panel issues. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. Venting the roof deck reduces the average temperature of the roof 1 75 c 5 f which is one third the influence of the color of the shingles the aspect of the roof direction it faces and 1 36 the influence of geographic location.

Wood roofing panels endorsed by the apa usually contain an in service water content of between 4 and 16. The energy needed for air conditioning and heating typically goes up 10 when ducts are in the attic ueno 2003. The addition of vented eave riser flashing and ridge ventilation completes an energy saving asv system. 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.

The energy savings touted by unvented attics can be as high as 20. In high wind regions particularly in coastal areas wind driven rain is a problem with vented roof assemblies.