In our industry there are two main varieties of underlayment.
Purpose of tar paper for roofing.
It is an added layer of protection from the elements and a necessary layer should even one shingle be blown off of your roof in a storm.
It is used in a small percentage of built up roofs bur as underlayment with asphalt wood shake and other shingles or even gravel since tar paper itself isn t particularly wind or sun resistant.
Wind driven rain or snow can trap water under your shingles putting your roof deck and inner residence at risk of moisture.
Multiply the width by the height for the.
Use a ladder to reach the bottom level of the roof.
In northern climates ice or snow dams are another common.
Felt paper and synthetic.
Tar paper is far less common than asphalt felt paper and is used among other things for waterproofing roofs to prevent ingress of moisture.
It also acts as a weather barrier until the shingles can be installed.
To protect your home install a protective layer of tar paper also called roofing felt before placing tile metal slate or wood shingles.
Step 1 measure your roof s surface in square feet and purchase enough tar paper to cover the entire surface twice.
Measure the size of your roof in square feet.
Felt paper also referred to as tar paper was the standard underlayment material in roofing for decades.
If you re using an ice or water shield place this first and then install the tar paper.
Roofing felt also called tar paper is a material that lies between the actual roof and the house and the final layer of roofing material.
Begin your first row of tar paper with the bottom of the tar paper.
How to install roofing tar paper.
It provides backup protection in the event of ice or water damage.