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.

Roofing ice and water shield questions.

This ice shield seals nail holes better then regular tar paper roofing materials. These cheap imitations of ice water shield should not be gone over they should be removed. And you better set your roll right the first time you won t get a second. An ice and water shield is a great roofing product to create leak free roofs.

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. Ice and water shield. Removing ice and water shield. Some of the ice water shield knock offs can be removed without deck damage.

This ice water shield is applied as an underlayment prior to putting the shingles on the roof. Grace won t come off if you put new grace over old grace it won t ever come off either. 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. Make sure you install waterproofing like an ice and water shield that prevents condensation inside the house and insulate underneath the roof with the foam insulation.

Not all high temperature roofing underlayments are the same. 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. 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. Sorry if this was talked about before and i missed it.

Traditionally contractors used metal flashing or double layers of felt in places where ice and water shield are used today. Taking these steps will create a thermal break and keep heat and cold from being transmitted rapidly which can cause condensation or even leaking or ice dams.