Repairing Blister In A Built-Up Roof
One of the most basic ways to make a built-up roof is to place alternating layers of tarpaper and asphalt tar on your roof. With a covering of three to five layers, you can make an effective water barrier for your roof. If you are looking to save a little bit of money, an asphalt roof is one of the least expensive options on the market. On the other hand, the barrier created by an asphalt roof is not indestructible, so you will need to be ready to make repairs as needed.