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How Roofers Created Roofs

Jul 26

Have you ever wondered about how the roofers constructed their homes? Are you familiar with various roofing materials? There are a variety of roofing materials, including made-up roofing, plywood and OSB. In this article, we'll go over what each of these materials can do and how they are able to be put together to create a roof. Then, we'll talk about Sheathing and Roof trusses. We hope you will understand the importance of these materials to your roof's structure towards the close of the course.

Sheets of built-up roofing

Built-up roofing sheets are composed of special layers of fabric. They are laid on top of hot or cold bitumen. The ply sheets overlap to form a more solid roof and are usually strengthened by fiberglass, or other organic substances. The roof layers are durable enough to be used on commercial buildings. The most common width for plywood sheets is 36 inches.


Sheathing is the substance that holds a roof together and offers strength and durability. Sheathing is utilized by roofing professionals to keep a roof from sagging or to improve its design. The best way to check for broken sheathing is to check the attic. If the roofline is wavy and wavy, it's likely the sheathing has been damaged. If you feel the wood bending and the roof is sagging, it's a weakened sheathing.

Roof Trusses

Traditionally, roofers have constructed roofs using rafters made from 2x8 or 2x10 wood. The roof is connected to the exterior walls by the rafters. These beams support the roof’s weight and are attached to ridge boards, which are connected to the rafter boards. Rafter boards are typically covered with insulation or other material and fastened to the faces of the trusses. If the trusses are of greater width than beams that are ridged, the rafter boards can be replaced by ridge beams.

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Roof underlayment

Felt underlayment has been utilized by roofers for decades, and is still an option that is widely used. Although it's simple to put in and is cheap, it is not waterproof. Most roofing contractors use 15-pound felt. A thinner, heavier felt of 30 pounds is stronger and lasts longer. Felt is gradually being eliminated by roofers due to its poor waterproofing qualities. It is however, a good choice for certain roofing purposes, including flat roofs.

Metal roofing

Metal roofs are composed of steel coils which are continuous long rolls. They are coated and treated. The steel is then cut into panels that mimic the form of other kinds of roofing materials. These panels are then seamed together to create a roof. Roofers must also be familiar with the terms "tin roof" and "steel roof" as these do not refer to metal roofing. There are some essential things to be aware of when you're thinking about a metal roof for your home.

Wood roofing

Depending on the wood species, a wood roof could last a long time. However, it is possible to see deterioration in the event that the shingles are thin. The roof's slope, exposure to rainwater and the kind of shingles are elements that could cause damage to the roof. The effects of rainwater, grit, ultraviolet rays, and winds all impact the wood shingles.

Prefabricated Trusses

Traditionally, roofers constructed trusses using large lumber, and then set them up on site which was a time-consuming process that can last for up to an entire week. But with the invention of pre-fabricated trusses, roofing contractors are no longer required to tackle this issue and can construct a roof in just one day. This method also allows them to build a roof of virtually any custom design, as the trusses are able to span a larger distances without having to use internal walls.

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