GAF vs. OWENS CORNING

peterjames

Professional installers have long preferred the rugged, dependable performance that only a GAF roof can offer, and have made it the #1-selling brand in North America

RooferJim

GAF is a better shingle period. the solid seal strip can and has been a problem with OC shingles.

DFWRoofing

I find little difference. What I dislike about both is that they can be purchased at the home improvement stores for just about the same price as I can get them at a wholesale.

kathy

Owens Corning is the choice I would go with. My company has used GAF in the pass and we have had problems with them blowing of the roof tooo many times, which I had to put claims in for a couple of homes we shingled. from there on out we have used Owens Corning. not sure if GAF has changed the quality of their product or not

Ridgewalker

I have always liked the Elk Prestque line. Its what is used mostly in Ca. but since GAF bought them out its gone down hill. They are thinner, less` flexable and more granual loss. It looks like all they retained from elk were the color charts and the name.

Rex

I can' believe this is a serious comment. Hoax indeed. Sealing is dependent upon temperature. We have installed many different brands of shingles. Owens Corning has been one of the fastest sealing brands. With 6 nails per shingle it shouldn't even be an issue with any brand, with 4 nails per shingle it could be in cold temperatures. Shingles are stiffer in cold weather and could take some time to warm up settle down and seal (all brands other than modified bitumen shingles which are very flexible even in cold temperatures, but not widely manufactured or available). Owens Corning advertises 110 MPH wind resistance with only 4 nails per shingle on the Duration (30 year). Building code required 6 nails per shingle in coastal areas should even make it better. Most other brands require 6 nails per shingle, as well as seal down starters on rakes as well as eaves to increase their wind resistance from 70 MPH to 110 MPH in 30 year laminates.

PTROOFING

We install GAF/ELK Timberline as our #1 choice, but on 3 story building with no trees to block wind, we usually install OC Duration. We really like the Duration Designer Colors as well, but GAF is our choice for a normal 30YR shingle. Never had a problem with either.

BTW.....

I installed a Timberline roof on MY HOUSE 2 YEARS ago using 15# felt and NO Ice Guard in valleys or eaves and have never had a problem. Its the way the roof is installed IMO. We even cut the 15# felt in the middle of the valleys to get a nice, tight shingled valley, old school trick!

BUT.........On our jobs, we install ice guard and Titanium felt, just to cover ourselves.

PTROOFING

Indeed.......

But We have installed almost every brand of 30yr dimensionals all year round with out a problem. We have shoveled snow off roofs in Jan and Feb to re-roof homes and NEVER had a call back with any shingle manufacturer, although we WONT use Tamko products. We 5-6 nail all shingles, all year, and in winter have them delivered warm.

Johnk

The Durations have a wider nail strip and added sealing strips compared to any other archs on the market. Smart shingle.Quote FLflatRoof

I guess you have never used Malarkey's 'zone'

__________________
"A Roof Is Only As good As It is Applied"

Johnk

On a hot day Gaf/elk seal as fast as you put them on.

__________________
"A Roof Is Only As good As It is Applied"