Frost on the underside of the roof or rafters.
Retrofitting attic ventilation.
Please feel free to contact us if you have any questions.
Retrofit attic baffles for cathedral and vaulted ceiling ventilation.
Many homes appear to have soffit vents but only have vent screens with no air intake.
With the help of an assistant raise the vent up to the soffit and center it over the cutout slot.
Photo by merle henkenius.
You can also spot this in the summer.
Without the vents there s no place for outside air to enter the attic.
Space the holes 12 to 14 in.
Learn more about the vulcan vent.
Screw holes through both flanges.
Here are the signs to look for.
Attic ventilation for cathedral and vaulted ceilings require attic baffle vents.
Water stained or blackened wood.
The aura solar attic fan retrofit will exhaust air continuously by using solar and wind power for optimum ventilation performance.
Model asf 12 rf has a 12 in.
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.
Making sure your home has soffit vents is an integral part of proper attic ventilation.
A sign that condensation is.
Locate the soffit vents.
A sign of mildew or rot.
Retrofits are as easy as 1 2 3.
Next lay the strip vent down on a flat wood surface such as a plywood sheet or long 2 x 4 and drill 1 8 in dia.
Inside the attic behind existing gable and eave vents the matrix can be cut to size and fastened to the existing 1 4 screen.