On 14 Oct 2004 22:25:48 -0700, (Joe) wrote (with
possible editing):

Roofers I've talked to say that re-roofing a house that had an ice and
water membrane put on it 10 or 15 years ago is a pain. Ripping the
old membrane off frequently leads to replacing parts of the plywood
deck.

I don't understand why these Ice and Water membranes have to be "peel
and stick". Seems they would work just fine if you rolled them out
and put a few nails on them to keep them in place before the shingles
go down (ie same as tar paper).

Does anyone make an Ice and Water membrane that's NOT peel and stick?
(Tamko Nail Fast seems like it but Tamko doesn't exactly call it an
Ice and Water shield even though it's made of the same SBS material).

Just a suggestion from an amateur: perhaps you could leave the paper
backing on? (never tried it)

We used Grace Ice and Water Shield over the entire roof along with
shingles guaranteed for 30 years. We did this because even though the
roof is properly insulated and vented with proper vent, soffit and
ridge vents, we have eyeballs (recessed lights) in the cathedral
ceilings and found that the heat from them was enough to melt snow
above them which would run down a bit and then freeze. Eventually
this would cause ice dams, pooling, etc. and water would leak between
the sheathing and the finished ceiling. Of course, if I had it to
do over again, I wouldn't use eyeballs.

--

Larry
Email to rapp at lmr dot com