Retrofit Attic Venting

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Retrofit attic venting.

Attic will need 10 sq. Next bore a 3 4 or 1 in dia. Most building codes require 1 sq. Of venting ideally about half placed high on the roof and half in the soffits.

Start by using a chalk reel to snap two parallel lines down the center of the soffit. Connect the two cuts. The keepa attic vent is used for ventilating attics and or plenum as a roof exhaust vent or as an air intake roof vent. Basically because of the trusses we have to use blown in insulation instead of laying down fiberglass batts.

So a house with a 1 500 sq ft. How to install soffit vents make two parallel lines. The honeycomb matrix along with the screen mesh sold together can be used in a variety of retro fit applications. Retrofits are as easy as 1 2 3.

Hole through the soffit right between the lines and measure the. 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. It alleviates moisture in the winter and heat in the summer to extend roof membrane life. Model asf 12 rf has a 12 in.

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. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. With v baffe s design you can quickly and easily retrofit cathedral and vaulted ceilings that would otherwise have been next to impossible. Inside the attic behind existing gable and eave vents the matrix can be cut to size and fastened to the existing 1 4 screen.

Intake vents located at the lowest part of the roof under the eaves allow cool. And due to the soffit venting system we need to retrofit rafter vents to ensure adequate air circulation in the attic. In some circumstances you can have less but we recommend the 1 150 ratio. Of venting technically net free vent area or nfva for each 150 sq.