I'm getting quotes for a new roof. One contractor has proposed a system
which I never heard of. The proposal consists of tearing off roof covering
down to sheathing. Then, they propose to put ice guard on all seams of the
plywood 6" wide, and seal the deck with deck sealant. They won't be using
any felt and just install the shingles over this. They suggest there is no
way ice or water will penetrate the decking if I get ice dams. To do this,
the cost is $1 per sq. ft. of decking, I have 24 sq. or 2,400 sq. ft. to
cover. So the price is $2,400 to use this method. My question is: Is this
a reasonable cost?
You haven't provided enough info for any one to comment on your price.
Your best bet is to get estimates from several roofing contractors and be
sure to get references. For this new system find out what kind of warranty
the roofer will put on the roof and whether his insurance will pay off in 10
years if the roof leaks. From your description this system sounds quite
labor intensive. Wouldn't using felt be easier, faster, and cheaper? He's
going to be covering a lot of seams.
Here's my theory on something like that: Why be the guinea pig?. I would
try to get references from other customers first. I would also try to find
out what the advantages of this as opposed to traditional roofing. The
other question I would ask myself is: "Does the company doing this JUST do
this type of roof, or do they do traditional roofing also". If they only do
the type they are proposing, then that's an indication to me that it's a
gimmick, and not reliable.
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