Your roof valleys are crucial to keeping water flowing in the right direction down your roof. Because of this, they need something to protect them from the constant flow of water every time it rains.
Ice and water shield is the waterproof membrane used to protect your roof from ice and water damage. In this video, we break down what you need to know about ice and water shield.
After watching this video, don't forget to check out the next video in our series on Starter Shingles.