Your best protection against an ice dam is an ice and water protection membrane which can seal around the shanks of the roof fasteners for a leak resistant fit.
Waterproof membrane roofing felt.
Of course it is a bit more technical than that but this is the basic idea behind how felt works.
Generally speaking roofing felt is a felt paper that is soaked in asphalt and other water resistant compounds to produce a membrane.
This is also known as synthetic underlayment.
There are three main types of roofing underlayment.
Felt otherwise known as underpayment is required when.
However roofing felt offers additional protection against leakage providing an extra layer of water resistance.
Flowing and flexible liquid rubber membranes are the painless way to completely waterproof a flat roof that has lots of complex features.
Rubberized asphalt underlayment is waterproof.
Roofing felt is a layer of tar paper installed beneath the shingles to provide a backup waterproof membrane in case of leakage.
It provides extra weather protection.
Totally eco friendly and with a long life expectancy roofing superstore has plenty of options to choose from.
The first underside polymer membrane is used as a solid background often reinforced with glass fibers.
Asphalt saturated felt and synthetic underlayment are water resistant.