Seems like everyone has their own version of Ice & Water Shield now – IKO, GAF, etc. Some are considerably cheaper.
Anyone have any likes/dislikes?
It’s for my garage. Biggest issue I’ll probably face is that we’ve pretty much used up our allotment of warm weather, so I expect it’ll be pretty cold when I put it down.
Also trying to decide on what to use for underlayment for the upper part of the roof that I don’t use the IWS on. 15# felt would probably be fine, except that I may not get the shingles down right away – with the short days I’m basically stuck with weekends only now – so it’ll have to contend with wind & water for a while.
Thanx
Don
Replies
I usually use Certainteed's I & W Shield product. It seems fine. I've used Grace's on one occasion and it did seem to be a nicer product, but I don't know that it is actually better.
I have used one other I&W Shield product, but I do not remember the brand. Seemed like it was kind of a generic brand. But I didn't like it. The plastic on the back was really reluctant to come off. A real PITA. I made sure that the lumberyard knew to not give me any more of that stuff.
If you are going to have the paper exposed for awhile, I would use 30# at a minimum. But there are even better products available. I just haven't used any of them myself. Someone will be along with a recomendation.
Rich Beckman
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Thanks. Just seems like there's a wide range in price, but I don't know about cold workability.
Don
Last roof i did, I used Elk building products IWB. It was a 2 square roll and cost $39 from my local lumber yard. thats $12 cheaper than the 1 1/2 square rolls of GAF IWB from Depot. I saw absolutely no difference in the performace of either product during installation. Infact, I though the ELK was a little more sticky on the back.