Sometimes shingles come off the ice shield better when it is hot. In that case, let the area heat up a bit and then tear that area off, and then the shingles will separate from the ice shield. Sometimes shingles just won’t come up at all.
How long does ice and water shield last on a roof?
The original, fully-adhered roofing underlayment, Grace Ice & Water Shield®, now has an extended exposure limit of 90 days. For more than 35 years, Grace Ice & Water Shield® has been the brand that roofing contractors and architects trust most to specify and install on marquee projects around the world.
Can you put new ice and water shield over old ice and water shield?
Apply the membrane to the entire roof deck for wind-driven rain protection. Apply a new layer of GRACE ICE & WATER SHIELD® underlayment directly over the old GCP self-adhered underlayment (except GCP granular underlayments) in retrofit applications following the standard membrane application procedure.
Can you put shingles over ice and water shield?
The membranes are designed to form a watertight seal around the nail penetrations when shingles are applied. Potentially, covering an entire roof with ice and water protector can prevent leaks even after high wind conditions blow shingles off the roof—preventing further damage and making repair easier.
Can you leave ice and water shield exposed?
Grace Ice & Water Shield can be left exposed for up to a full 30 days and can even be used as a temporary roof. Unlike many thicker membrane underlayments with laps that are visible through roof coverings, Grace Ice & Water Shield remains invisible.
Is it bad to ice and water whole roof?
The only real negatives of covering your entire roof with ice & water shield are (1) cost and (2) potential ventilation problems (which are very rare). Ice & water shield acts as a vapor suppressor, so it not only keeps the water out, but also keeps the moisture in.
Can you nail through ice and water shield?
When nails penetrate the ice and water shield on the roof, the rubberized nature of the material creates a gasket effect on the shaft of the nail. Leaks simply don’t happen. … You can cover the entire roof with the ice and water shield, but in many instances it’s applied where leaks frequently happen.
How do you remove a stuck shingle?
I would try a heat gun and a two or three inch putty knife to get it off. It will probably be a slow process though. You can also use an old blade in a circular saw to cut grooves in the shingles nearly down to the roof and try chiseling them out with a 1″ wood chisel.
How much do you overlap ice and water shield?
A single length of WaterGuard Rain & Ice works best, but if that isn’t possible, successive overlaps should be 6″. Firmly hand-roll the laps to ensure a complete, water- tight bond.
Does tar paper go over ice and water shield?
Method 1: Install the ice-barrier membrane according to the manufacturer’s instructions with the drip edge installed on top of the membrane. Then install regular roofing underlayment (tar paper) over the top of the drip edge (and over the ice barrier) and continuing all the way up the roof.
Can you roof over wet plywood?
A: It is never a good idea to install a roof over wet plywood or any type of roof sheathing. Trapped water will boil when the sun heats the roof and the shingles will then have small pits where the steam finally escapes.
What goes first drip edge or ice and water?
The best way is to install the roof drip edge only along the eaves first, then place ice-and-water barrier (in the snowbelt) or felt paper (underlayment) over the drip edge. This lets any water that gets on the roof run down the underlayment and over the drip edge.
Is ice shield waterproof?
Ice and water protector, sometimes also referred to as ice and water shield, is a waterproof roof underlayment membrane developed to protect vulnerable areas on a roof from ice and water damage.
Do Metal Roofs need ice and water shield?
The product should be a premium, high temperature ice and water shield for use with tile, metal, and other roofs with scrim reinforced top surface. … The product needs to be installed on the eave edges up the roof at least two feet inside the face of any exterior wall.
What is high temperature ice and water shield?
Ice & Water Shield® HT is formulated with a proprietary adhesive with temperature resistance of up to 260°F. The membrane forms a watertight bond to the roof deck, and seals around fasteners of the primary roof covering and thus maintains the waterproof integrity of the roof deck.