Roofing Ice And Water Shield Questions

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.

Roofing ice and water shield questions.

I am about to reroof using grace ice and water shield for the first two courses then a synthetic underlayment above. An ice and water shield is a great roofing product to create leak free roofs. Ice and water shield or weather watch is a premium leak barrier rubberized membrane that is used as part of a roofing system to provide a 100 watertight seal. Removing ice and water shield.

The specific performance of ice water shields is important and it s best to know that any premium brand is your best bet for long lasting protection. This ice shield seals nail holes better then regular tar paper roofing materials. Grace ice and water shield ht is an excellent high temperature ice and water barrier that follows in the footsteps of the original ice and water shield but is specially formulated to meet the higher service temperatures that are inherent to metal and tile roofs. Ice water shield is a thick sticky back underlayment also known as felt paper that will adhere to your roof deck and prevent water from seeping into your home if it gets under your shingles.

Traditionally contractors used metal flashing or double layers of felt in places where ice and water shield are used today. Grace ice water shield roofing membrane is used as an underlayment for sloped roofs to resist water penetration due to water back up behind ice dams or wind driven rain. The ice and water shield is an amazing roofing product that was first introduced in the 1980s. 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 water shield is applied as an underlayment prior to putting the shingles on the roof. If an ice dam occurs on your roof and water backs up under the shingles it will seep down into your home through the nail holes holding the shingles. Do note though that the cheaper the shield also means that the more slippery and hard to walk on the shield will be. I was considering applying the synthetic underlayment over the ice and water as well as i have read that shingles will often adhere so badly to i w products that you have to take the decking out to reroof 20 30 years down the line.

A contractor should know this and be mindful of everyone s safety. Sorry if this was talked about before and i missed it. Not all roofing underlayments are the same. Grace ice water shield underlayment also offers leak protection in trouble prone spots like valleys skylights protrusions and other flashing areas.