Retrofit Attic Venting

In some circumstances you can have less but we recommend the 1 150 ratio.

Retrofit attic venting.

Retrofit attic baffles for cathedral and vaulted ceiling ventilation for purchase information click here attic ventilation for cathedral and vaulted ceilings require attic baffle vents. Of venting technically net free vent area or nfva for each 150 sq. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Next bore a 3 4 or 1 in dia.

Of venting ideally about half placed high on the roof and half in the soffits. So a house with a 1 500 sq ft. If you do not know what rafter vent is here is a video. Please feel free to contact us if you have any questions.

Hole through the soffit right between the lines and measure the. Model asf 12 rf has a 12 in. And due to the soffit venting system we need to retrofit rafter vents to ensure adequate air circulation in the attic. It alleviates moisture in the winter and heat in the summer to extend roof membrane life.

Start by using a chalk reel to snap two parallel lines down the center of the soffit. Inside the attic behind existing gable and eave vents the matrix can be cut to size and fastened to the existing 1 4 screen. The keepa attic vent is built exclusively for flat roof ventilation roof pitch is 2 12 or less. The honeycomb matrix along with the screen mesh sold together can be used in a variety of retro fit applications.

Intake vents located at the lowest part of the roof under the eaves allow cool. With v baffe s design you can quickly and easily retrofit cathedral and vaulted ceilings that would otherwise have been next to impossible. Attic will need 10 sq. Most building codes require 1 sq.

How to install soffit vents make two parallel lines. Dia throat opening and a 10 watt solar panel providing energy to 4 ec fans on sunny days to increase the cfm cubic feet per minute of 740 at 0 1 sp of air flow performance. Basically because of the trusses we have to use blown in insulation instead of laying down fiberglass batts. The aura solar attic fan retrofit will exhaust air continuously by using solar and wind power for optimum ventilation performance.