2007-09-06 03:24:50 · 4 answers · asked by retired&lovingit 2 in Home & Garden ➔ Maintenance & Repairs
These will do two hings for you:
1) Keep your attic cool so it costs less to cool your house.
2) Keep your roof cool so your asphalt shingles won't curl up and die. Seriously, your roof will last quite a bit longer.
2007-09-06 03:42:32 · answer #1 · answered by john the engineer 3 · 0⤊ 0⤋
They are typically large and unsightly and also mean you have to cut into your roof and roofing with possible leakage when it rains.
An easier and better way is a pair of gable vents that go in either end of your roof, they vent better, are very easy to install, don't pose a leaking issue and look less "industrial" than the roto vent.
If you'd like to make use of your attic heat during the winter here is an interesting article for both venting your attic and capturing and re-using the heat that's cheap to do and very effective! http://home.wavecable.com/~innfiles/page4.html
2007-09-06 04:02:02 · answer #2 · answered by groingo 4 · 0⤊ 0⤋
help remove hot air in summer to keep cooling cost down
2007-09-06 03:33:08 · answer #3 · answered by furmanator1957 4 · 0⤊ 0⤋
Basically they're wind powered exhaust fans.
Inefficient, but better than none and decorative.
2007-09-06 03:35:41 · answer #4 · answered by Irv S 7 · 0⤊ 0⤋