Ice and water rolls come in different sizes, one or two square rolls (a square is supposed to be 100 square feet of coverage). However, many ice and water shield rolls are not exactly 100 or 200 square feet! Some rolls are smaller and some are larger than 100 or 200 square feet.
How much area does a roll of ice and water protector cover?
The length and coverage of a roll of ice and water protector will vary by manufacturer. GoldShield™ is 66.7 feet long (19.9 meters), and one package has an area of 200 square feet (19.58 meters). Ice and water protector membrane is a superior choice over roof felt for leak protection when properly installed and paired with the right products.
How much ice and water shield above the wall?
They have no idea of the actual code dictating the "2-feet past the inside wall", which with a large front porch and 8' soffit overhang, could well be over 12' of ice & water shield! The below diagram helps outline exactly how to determine how much ice & water shield is needed on any given roof above 4/12 pitch.
How do I calculate my ice and water protector needs?
In order to calculate your ice and water protector needs, you need to know what width of ice and water protector you need, and the length of the roof that you need to cover. First, there are a few factors that determine the width you will require.
What is the minimum height for ice and water protector?
Ice and water protector must reach above the highest expected level of ice dams, which will vary by region and the slope of your roof. The minimum is typically 2 feet (24 inches or 0.60 m) above the vertical projection of the inside of the exterior wall.
How many feet does a roll of ice and water cover?
SpecificationsManufacturerGraceCoverage (Square Feet)200Installation MethodSelf-Adhering; Side Laps must be a minimum of 3.5 inches and End Laps a minimum of 6 inchesInstallation Temperature40 degrees Fahrenheit or higherPackage Quantity17 more rows
How long is a 2 square roll of ice and water?
36" x 66.6'36" x 66.6' Ice & Water Shield® Roofing Underlayment - 2 SQ. Roll.
How long is a roll of ice and water guard?
36" x 36' Ice & Water Shield® Roofing Underlayment - 1 SQ. Roll.
How many rolls of ice and water do I need?
1:222:25How to Know How Much Ice and Water Shield You Need - YouTubeYouTubeStart of suggested clipEnd of suggested clipHowever these ice and water shield roles come in three feet we're not gonna just cut a foot off andMoreHowever these ice and water shield roles come in three feet we're not gonna just cut a foot off and leave you hanging we put the extra foot on there because it just makes sense.
Should I put ice and water shield on my entire roof?
In areas where the risk of either ice dams or wind-driven rain is severe, it is sometimes recommended, or mandatory, to install ice and water protector over the entire roof, regardless of pitch.
Do you put underlayment over ice and water shield?
Ice and water shield need to be installed before other underlayments, including roofing felt. Tar paper compared to ice and water shield do not stick to anything, whereas ice and water shields are a rubberized membrane that is very sticky to create a waterproof barrier to standing water if installed correctly.
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.
How many square feet does a roll of ice shield cover?
Grace Ice &Water Shield also offers leak protection in trouble prone areas like valleys, skylights, protrusions and other flashing areas. Sold by the roll. Size: 225 square feet roll.
Where should ice and water shield be installed?
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.
How do you calculate ice and water?
Once you calculate how far up the roof needs to be covered, you can calculate the total amount of ice and water barrier needed by multiplying the coverage in feet by the length of the eaves that need to be covered in feet.
Is ice and water shield better than felt?
Synthetic “Felt” Underlayment While they don't seal the nails as ice and water shield does it is a superior underlayment when compared to traditional felt paper. Synthetic “felt” is better at protecting your roof in the event of blow offs or wind driven rain, as it is not as prone to the same problems as felt paper.
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. Not only does ice and water shield stop leaks caused by ice dams, but it also stops leaks created by fierce wind-driven rain.