06-13-2011, 04:30 PM
That link looks a lot like the fan...(it was a little less $$, but that was a 3-4 years ago...)
We only have one, because our ohana is attached to the carport of the main house on the other gable side.... & we haven't worked out the best way to deal with vents in a carport (gut feeling, it is a no-no). The main house has raised ceilings, and does not have attic space.
Oh, also make sure you have enough eave ventilation, that is where the cooler air will come in, those little "bird holes" are for the birds, unless your block boards are peppered with them! There are a number of links for calculating the free vent space you need, here is a link to the GAF calculator (one of my old clients...so I use theirs, but there are others...):
http://www.gaf.com/Roofing/Residential/P...lator.aspx
Link on how to calculate the 1/300 or 1/150:
http://www.gaf.com/Roofing/Residential/P...ation.aspx
We installed our Reflectix in our upper rafters - hubby squinched (techy term;~) around up there on a couple sunny days, I think we could pour him out after that.... if we ever do much work up there again, we will make sure to install attic stuff on cool, very overcast days.
We only have one, because our ohana is attached to the carport of the main house on the other gable side.... & we haven't worked out the best way to deal with vents in a carport (gut feeling, it is a no-no). The main house has raised ceilings, and does not have attic space.
Oh, also make sure you have enough eave ventilation, that is where the cooler air will come in, those little "bird holes" are for the birds, unless your block boards are peppered with them! There are a number of links for calculating the free vent space you need, here is a link to the GAF calculator (one of my old clients...so I use theirs, but there are others...):
http://www.gaf.com/Roofing/Residential/P...lator.aspx
Link on how to calculate the 1/300 or 1/150:
http://www.gaf.com/Roofing/Residential/P...ation.aspx
We installed our Reflectix in our upper rafters - hubby squinched (techy term;~) around up there on a couple sunny days, I think we could pour him out after that.... if we ever do much work up there again, we will make sure to install attic stuff on cool, very overcast days.