ridge vent and drip edge questions

[floridagramps1]

Purchased my shingles at HD today. They had no ridge vent

HD expert told me to buy 3 filters 1x24x36 and cut them to fit over ridge vent opening. Same expert told me that I only need drip edge for horizontal edge of roof.

Is this good advice???????????????

I have 6 in 12 slope, 1/2 inch OSB and a roll of felt#15

 

[Fred's Hens]

It would work, to some degree, but I'd be quite unhappy with the restricted air flow and a barn/coop isn't like a house. The dust trapping would soon clog those filters, in my view, and restrict them even further.

Two of these "mushroom" type cap vents, placed up high, almost to the top of the ridge, would be my second choice. http://www.google.com/products/catalog?client=safari&rls=en&q=roof+vent&oe=UTF-8&um=1&ie=UTF-8&tbm=shop&cid=7015854166201405700&sa=X&ei=A7L5TsD9Murf0QHu4rSUAg&ved=0CKIBEPICMAU#ps-sellers


Some guys didn't use drip edge along the sides, only the bottom, but I am NOT one of those guys. Put it along the side runs as well. Also, make sure you don't cut your shingles off flush with the sides and bottom. Always cut the shingle with 1/2 to 3/4 inch surplus hanging out over the drip edge. Shingles shrink with age and this allows for that. If you cut them flush, in 7 years, the shingles will shrink back and this often creates a source of back leaking.

 

[jerryb]

also remember that the felt goes over the drip edge at the eave and under the drip edge on the gable ends. so you install the drip edge on the eave (horizontal) first, then felt, then drip edge the gable ends. this will help a lot with avoiding leaks.


jerry

 

[Ridgerunner]

Sometimes I make things I have work, but in this case, if Home Depot does not have a ridge vent, I'd probably check out Lowe's or a Lumber/Hardware store. You might see if HD can order it for you where you can avoid shipping charges.

In Florida, you should not have to worry about snow blocking a ridge vent and good ventilation will be very important to you this summer. I would not mess around with this one. A ridge vent would not be my only ventilation either, but you've probably got that covered.

 

[Chris09]

Ridge Vent-
Home Depot http://www.homedepot.com/h_d1/N-5yc1v/R-100000023/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053
Lowes http://www.lowes.com/pd_31729-228-84741_0__?productId=3566972&Ntt=ridge+vent&pl=1&currentURL=%2Fpl__0__s%3FNtt%3Dridge%2Bvent&facetInfo=

Don't listen to that "expert", get the right stuff the first time and do it right.
For installing drip edge it go on both eaves and gable ends.

Underlayment would be you Felt Paper, Freeze Guard rubber membrane or WeatherBond Black EPDM rubber membrane

Chris

 

[Ole rooster]

You also can go to a company that provides metal roofing for contractors. We have one here in Griffin. The ridge vent is only a strip of metal formed to set on the ridge that mount perpendicular to the roofing corrugation. In a large way the amount of air allowed to vent is determinded by how wide you place the lathing for the roof. I like at least 6 inches on either side of center of the ridge. Be sure to cover the open area with screen wire prior to putting the metal vent cover down. That will keep out little creatures and snakes.

I've found HD, Lowes and such places won't carry what you need. Try to find a supplier. Just tell um you need a ridge vent cover.

 

[Bear Foot Farm]

HD expert

I think what you mean is some guy who works there, probably for near minimum wage, who most likely had no prior knowledge of building materials, but who figures you will take his advice when he tries to SELL you something in stock rather than taking a chance you'll go somewhere else to buy what you really need​

 

[jerryb]

Chris,

thanks for the help in showing what I was getting at.

Jerry

 

[floridagramps1]

thanks guys
you are making me lots smarter

 

[ChickenCanoe]

All good advice so far.
I would add a bit of caution. The first two buildings had ridge vents and help most of the time but I think you need more like gable vents.
If you get snow, a snow covered ridge vent is worthless.