Grace Select has a different edge treatment than Ice and Water Shield. The plastic cap sheet extends all the way to the edge on Select and the rubberized asphalt is stepped back about 1/4 in. on the backside from the edge. Ice and Water Shield exposes about 3/8 in.
How long can grace ice and water shield be 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 if final roof coverings are delayed.
Is Grace Ice and Water Shield waterproof?
GRACE ICE & WATER SHIELD® self-adhered roofing underlayment is a premier membrane composed of two waterproofing materials—an aggressive rubberized asphalt adhesive backed by a layer of slip resistant coated high density cross laminated polyethylene film.
Should I put ice and water shield on my entire roof?
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.
Do you nail ice and water shield?
Rolls of the ice shields come in three foot rolls with a total of 66 lineal feet. Cut the length of the sheet to fit the roof. Pull off the protective backing and press the Shield into the roof sheeting for the adhesive to take effect. Do not staple or nail the shield unless it is absolutely needed.
Is Grace select high temp?
Membrane Installation. Apply GRACE SELECT™ membrane in fair weather when the air, roof deck, and membrane are at temperatures of 40°F (5°C) or higher. Apply roof covering material at temperatures of 40°F (5°C) or higher.
Can ice and water shield be exposed to the sun?
GCP’s underlayments (GRACE ICE & WATER SHIELD®, GRACE ICE & WATER SHIELD® HT, GRACE ULTRA™, GRACE SELLECT™, GCP granular underlayment, Roof Detail Membrane™, TRI-FLEX® and TRI-FLEX® 15) are not meant to be left permanently exposed to the sun.
Does Ice and water Shield go over the drip edge?
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.
Can ice and water shield be used as flashing?
Ice and Water barrier is also commonly used around chimneys, under all step flashing at dormers and roof to wall transitions, around pipe flashing and should also be used around skylights.
Does felt paper go over ice and water shield?
Roofing ice and water shield may look like traditional felt paper, but it’s vastly different in performance. Traditional felt paper does a very good job at stopping most leaks where water gets under shingles, tiles, metal or slate.
What is the purpose of ice and water shield?
Ice and water shield is a waterproof membrane used to protect your roof from ice and water damage. Its main purpose is to protect your roof decking if water gets underneath your roofing material (asphalt shingles, metal roof, etc.).
When should ice and water shield be installed?
Ice & water shield should be installed anywhere there’s a chance of water getting under the shingles. These spots are… Along every wall, chimney, or skylight where flashing will be installed.
Can ice and water shield be used on walls?
Installing a strip of self-healing bituthane membrane like Ice and Water Shield¨ under the siding at the bottom of the wall may be a worthwhile investment. Carefully detail the area at the bottom of the wall where the sill connects to the foundation.
Can you put ice and water shield over existing shingles?
Answer – Not in the handyman’s opinion. An Ice & Water Shield is a rubberized strip that must be applied over bare sheathing; not only will it stick better on the bare sheathing, but it will present a more neat appearance. So, shingles should be removed three feet up from the eaves.
