Installing a new asphalt roof may seem like an easy job aside from being exposed to the hot sun, but it takes skill to install a roof properly, and the work has to be done carefully. Here's a look at four important aspects of asphalt shingle roofing installation.
1. Nailing The Shingles
Nails used to attach asphalt shingles have two important considerations: the type of nails used and how they're applied. It's necessary to use roofing nails of the proper diameter and length so they penetrate the roofing and drive into the deck. Roofing nails are also barbed so they don't back out easily, and they should be made of metal that doesn't corrode.
Local codes may stipulate how many nails are to be used per three-tab shingle. The nails need to be driven in straight, and to the proper depth. If the nails are too deep, rain might seep in around them, and if they aren't driven in all the way, the nails might back out and leave a hole that leaks.
2. Adding The New Flashing
A full roofing installation usually involves putting on new flashing too. Flashing is an important part of a roof that keeps rain from leaking around chimneys and keeps other things from poking up through the shingles. Flashing is made of metal, and it can be created on the spot from sheet metal.
An important step in installing the flashing is to make sure it is sealed properly so rain can't roll underneath it. This is achieved through properly overlapping the flashing and shingles, and by using an adhesive such as roofing cement.
3. Making The Valleys Waterproof
The valleys on your roof are the most vulnerable areas for leaking since water drains across them before rolling off the roof. Extra care has to be taken in the valleys to make them waterproof. This is done by using flashing, an additional layer of waterproof underlayment, and weaving shingles together where they meet in the valley.
4. Putting On The Cap Shingles
Cap shingles are the very top layer of shingles on the ridge of the roof. Your roofer might cut a three-tab shingle into sections and use those for the cap shingles. However, other types of shingles, such as rounded or laminated shingles, aren't a suitable match for the ridge of your roof.
Whether cap shingles or three-tab shingle sections are used, the shingles have to bend over the ridge of the roof, and this is more easily done when the shingles are warm and pliable. They're installed by layering them on top of each other across the ridge of your roof. The roofer starts laying the shingles against the direction of the prevailing winds so the wind won't catch the edge and lift the shingles as easily.
These steps involved in the installation of an asphalt shingle roof mean the difference between a roof that lasts for years before it leaks, and one that might start leaking soon after it's installed.Share
11 December 2020
When I married my husband 10 years ago, I agreed to move into the ranch home he already owned. Initially, we planned to live in this house for five years and then after a few years of marriage we wanted to buy our dream home. After our wedding, many things in our lives changed. We both got different jobs. And we decided to transform the house my husband owned when we married into our forever home. To accomplish this task, we have begun a major renovation project. The first job on our list was a new roof. On this blog, I hope you will discover the best types of roofs to install on a brick home.