Dimensional shingles, also known as architectural shingles, are asphalt shingles with an enhanced aesthetic appearance compared to traditional 3-Tab shingles. Dimensional shingles have multiple layers of shingle material, and tabs of varying sizes unlike the single-layer repetitive sized tabs of traditional 3-tab shingles. This gives dimensional shingle the dimensional appearance hence the name.
There are many other benefits to dimensional shingles beyond simple their appearance. Since dimensional shingles consists of 2 layers and require more material to manufacture they are heavier and also sturdier and more resistant to being ripped off a roof during storms and strong winds up to 130 mph.
Dimensional shingles are also offer a better barrier to rain and hail than single layer 3-tab shingles. The lifespan of dimensional shingles is usually 25-30 years however 40-50 years isn’t uncommon with the higher end shingles.
Obviously the more materials required to produce dimensional shingles means they are more expensive than traditional 3-tab shingles. You should expect to pay around 20% more for dimensional shingles than you would pay for 3-tab shingles.
Not all Architectural Shingles are the same.
There are many different types of architectural shingles manufactured by many different brands. Here at Code Engineered Systems we only install the best. In my opinion the best architectural shingles are Timberline® HDZ™, TruDefinition®DURATION®, & Certainteed Landmark. All three shingles are in the top tier of architectural shingles and one is no better than the other nor is there a price difference among the three. We can install any shingle you like for the same exact price but we usually install GAF Timberline HDZ because we are a GAF Master Elite Roofing Contractors and GAF provides the best warranties around.