Roofing Felt Vs Ice And Water Shield

Traditional felt paper does a very good job at stopping most leaks where water gets.

Roofing felt vs ice and water shield.

Different parts of the country require different applications for i w shield. An ice and water shield is a totally impermeable membrane that prevents leakage through the roof in the event of an ice dam. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. The ice and water barrier is much slipper than roofing felt.

I always install the felt above the ice and water barrier. It can be very dangerous when the new roofer is tearing off the old shingles and looses his or her footing on the ice and water barrier. It is a common look out for the next time the roof needs to be worked on. This grace ice and water shield self adhered roofing under layment covers 225 sq ft of roofing deck 36 in.

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. 2 thoughts on roofing underlayment guide felt synthetic and ice water shield pingback. Not all roofing underlayments are the same. In the south i w make excellent valleys without having to cut your.

I have used it for years. If you have a roof that you know to be older than 1980 it won t have this great product under the shingles. This ice shield seals nail holes better then regular tar paper roofing materials. This ice water shield is applied as an underlayment prior to putting the shingles on the roof.

I consider it to be the premium roofing water shield on the market especially for shallow pitched roofs that get a lot of snow and ice in the winter. The rubberized asphalt layer actually seals around roofing nails so they are totally water resistant. If the roof slope is below 3 12 pitch see our previous post on how to determine a roof s pitch the entire roof should be covered but only if the roof is conventionally vented cold roof construction. The ice and water shield is an amazing roofing product that was first introduced in the 1980s.

The underlayment creates a secondary water barrier on the roof so leaks and water damage due to rain and storms are eliminated. Felt is much safer. The grace ice water shield 36 x 36 roll is another product that is recommend in areas that get more rain and snow. Depending on the slope of the roof this product could be installed to cover the bottom 6 feet of the roof or with a very low slope cover the entire roof.

Once the high temperature ice and water shield has been laid down you can now add the second underlayment layer.