Solar Ventilation with box vent

coco11

Hello,

I am replacing my current organic roof to a gaf timberline prestique 30 with regular box vents. I am located in Michigan, and thinking that would like to add a solar ventilation with the box vents (13 as total at 30 sq roof).

Questions:
1) If the solar vent fail to work (Without sunlight), I believe it will work like a regular box vent, am I correct?

2) Can it be installed about 2 feet away from regular box vents? Will it make the box vent as intake vent? Not sure the solar vent is this powerful to pull the air from other vents into the roof.

3) I am thinking to use owen corning duration vs gaf timberline 30, do like some of the duration colors, but due to seeing a lot of notes here about one like tar that will cause shingles traps the moisture under and surenail tech was not really hold the shingles as it adventise.

Please do kindly response above questions that may helps us to determine whether or not to use the solar vent or owens corning duration in Michigan area.

thanks,
Coco

xxPaulCPxx

If you are replacing your current roof, why not go with a ridge vent instead?

coco11

I have not enough ridge to do the ridge vent, and do some research about ridge vent that might not work well in mi weather and possible the ridge vent might blocked by snow or dust overtime.

Coco

xxPaulCPxx

So you get more snow that Buffalo NY? I see ridge vents everywhere there!

If you don't have enough ridge, I would not depend on a solar fan to keep your space ventilated. The fan will fail, then you just have a regular vent up there, except it cost $250.

Is the idea behind attic ventalation is to help keep the house cool?