Characteristics of an asphalt shingle roof
Asphalt shingles are most popular for homes with a gentle or steep pitched roof. However, shingles should not be installed on roofs with a slope that’s less than 8.5 degrees.
A shingle is made from 3 layers, whose thickness and components vary according to the quality of the materials.
These 3 layers are :
- The granule covering: this is the surface layer of the shingle, the one that gives it its color and protects it from ultraviolet rays.
- The asphalt layer: it makes the shingles watertight, thus protecting the roof.
- The reinforcement layer: very resistant, it serves to hold the various layers together.
In addition to these layers, asphalt shingles include a heat-activated adhesive strip and a nailing strip.
The main characteristics of an asphalt shingle roof:
- Easy installation for professionals
- Requires no special maintenance
- Low purchase cost
- Available in multiple colors
- Very high wind and weather resistance
- Lasts between 15 and 25 years
- Most common roofing material
The different types of shingles
There are 3 main types of shingles. Installation will depend on the slope of the roof.
- The three-tab shingle : This is the most economical and popular type of shingle. It’s recommended for low roof slopes.
- Architectural shingle: This is the most aesthetic of shingles (various designs imitating natural wood or slate are available), but also the most expensive. Ideal for medium and steep roof slopes.
- Laminated shingle: Thanks to its special design that gives texture to the roof, it’s grown in popularity over recent years. Suitable for roofs with a slope that’s greater than 18.4 degrees, i.e. 4/12.