What is the difference between Grace select and Grace ice and water Shield?
What is the difference between Grace select and Grace ice and water Shield?
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 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.
How thick is Grace Ice and Water Shield?
40 mil
Performance Properties
| Property | Value | Test Method |
|---|---|---|
| Thickness, membrane | 40 mil (1.02 mm) | ASTM D3767 method A |
| Tensile strength, membrane | 250 psi (1720 kN/m2) | ASTM D412 (Die C modified) |
| Elongation, membrane | 250% | ASTM D412 (Die C modified) |
| Low temperature flexibility | Unaffected @ -20°F (-29°C) | ASTM D1970 |
How much is ice and water shield?
Compare Similar Roof Underlayments
| current product | |
|---|---|
| Grace Ice and Water Shield 36 in. x 75 ft. Roll Self-Adhered Roofing Underlayment (225 sq. ft.) | 225 sq. ft. WeatherLock Flex Flexible Self-Sealing Ice and Water Shield Leak Barrier |
| $19362 /roll | $20447 /roll |
| (265) | (24) |
| (265) | (24) |
Can you put Grace ice and water Shield over shingles?
Protects under all standard sloped roof coverings — GRACE ICE & WATER SHIELD® roofing underlayment protects under slate, tile, cedar shakes or metal, as well as under conventional asphalt shingles.
Can Grace ice and water Shield be left 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.
Can Grace ice and water Shield be used under metal roof?
Is ice and water shield necessary?
It’s crucial to have ice and water shield installed on/around certain areas of your roof, like roof valleys, around penetrations, and on roofs that have a 2/12, 3/12, or 4/12 pitch. Because of its importance, every roof needs to have it. There’s also a code if you live in an area above the snow line in the US.
Do you need underlayment with ice and water shield?
You should install ice and water protector before other underlayments, including roof felt. Around roof features like dormers and chimneys, you should place ice and water protector below flashing. If two courses of IKO’s ice and water protector are needed widthwise, you should apply the bottom course first.
How much does a roll of Grace ice and water Shield Cover?
6′ 200 Sq Ft.
