This is What You Want to Know About Roofs

Owning a house comes with a lot of responsibility. It can be a lot to keep up with at times. That’s why we’re here to help you stay up-to-date and educated on the various components of your home. While your roof may not be at the top of that list, it is a vital component of protection from the outdoor elements so it is important to consider. Here are a few things you may have never known about roofs:

1- A Roof Isn’t Just Shingles

Although that is all that we see, a roof has many layers–each with a different purpose. The deck is the foundation of your roof that supports the weight of all the other layers. The insulator barrier keeps warm air in. A ventilation system provides air circulation, which keeps the temperatures regulated and keeps moist air out. Metal flashing along with the drip edge guides water down and off the edges of the roof to prevent water build-up that would eventually cave in. Finally, there are the shingles on top!

2- Flat Roofs Aren’t All Flat

Some roofs appear to be flat, but they still have a slight incline. Usually, it’s only about ¼ inch per foot, but it is extremely crucial to allow water from rain and melted snow to roll off. Interestingly, you wouldn’t really notice the incline just from standing on the roof.

3- Location Determines Type of Roof

Color, material, and size of shingles are all factors that vary according to climate. 

When considering what roof type to use for each climate, the degree of insulation, sun deflection, and resistance to weather extremes are all factors that go into the decision. 

In extremely hot environments like deserts, clay/ceramic roofs are common because they can withstand extreme heat and resist deterioration from salt spray in coastal areas.

Shake roofs are abundant in the Pacific Northwest and New England, as they have a high resistance to wind (and fire) damage. 

Shingle roofs– the most common in Georgia– are best for temperate climates. They are also resistant to wind, fire, and ice. 

The shape of the roof is another factor determined by weather conditions in the area. In climates with heavy rain, highly-pitched roofs are prevalent to allow quick water drainage. In places with strong winds, slanted or hipped roofs are used for their resistance to heavy winds. 

4- Roofs Have Fire Ratings

This fire rating system determines the level of fire resistance that a roof has based on its materials. 

Class A (highest fire resistance): clay tiles, fiberglass asphalt composition shingles, concrete, and metal roofing

Class B (moderate fire resistance): pressure-treated shakes and shingles

Class C: (light fire resistance): untreated wood shakes/shingles, plywood, and particle board

Builders are aware of these ratings and the majority of modern homes are built with roofing tiles that fall under the Class A category.

5- There Are Pitch Categories for Roofs

The pitch of your roof means the slope. There are 3 types:

Low: 1-3 inches

Medium: 4-12 inches

High: 5-12 inches

Each pitch has a recommended shingle type:

Low: any material that provides a watertight seal, such as steel.

Medium: asphalt and composite shingles

High: wood shake or slate shingles

It’s important to be familiarized with all the parts of your home. Not only does it make you feel safer or more comfortable, it also ensures that you’re aware of potential risks or areas that may need professional attention.