Architectural Shingle Information

Traditional wooden shingles are distinctive and decorative, but lack the fire resistance and durability of modern manufactured roofing.

Shingle roofs are extremely common and are available in a range of styles and materials. Wooden shingles are the oldest and most traditional style. Asphalt shingles have replaced wood shingles in most homes. There are many more manufactured roofing options, including architectural shingles, also known as laminated or dimensional shingles.

Architectural Shingles

Architectural shingles were invented in the 1970s. They are primarily made of fiberglass, and are often combined with other materials, including asphalt. They are manufactured in several styles, some of which are intended to mimic traditional wooden shingles and may be used to add character.

Pros

Although architectural shingles are heavier than other types of shingles, they do not require any additional support structures beneath them. They may be used to replace any existing shingles without additional preparation. They are designed to withstand extreme weather conditions and are extremely durable. Architectural shingles are typically expected to last 30 to 50 years. Many manufacturers offer a 40-year or even a lifetime warranty on professionally installed shingles.

Cons

The main disadvantage of architectural shingles is cost. Although they are fairly maintenance free, the initial cost makes them difficult to afford. Because they are most commonly used on large houses, the amount of shingles needed will be quite high.
Another disadvantage is that there is a tendency in architectural shingles to form algae or mildew. Mildew is typically caused by a buildup of wet leaves. Some architectural shingles have added copper to help avoid mildew damage.

Installation

Installation is simple. There is no need to install tar paper or other moisture-blocking barrier. Simply lay down the starter strip, which prevents water from flowing under the shingles, and nail down the shingles. Some brands feature interlocking tabs to help aid in installation, as well as adding strength and durability.

Safety Ratings

Architectural shingles are engineered to be capable of withstanding winds of up to 120 miles per hour. Unlike traditional wooden shingles, they are made to be highly resistant to fire damage. Shingles manufactured with rubberized or fiberglass asphalt offer the highest level of resistance to both fire and wind.

References

• Architectural Shingles
• The Roofery: Architectural Shingles