Composition

Description

Containing a mixture of common roofing materials, composite roofing has become a popular form. The combination of materials in composite roofing allows for greater protection from the elements. The various parts or composite of such roofing not only give it strength and durability, but also allow for different design choices.

Composition Roof in Bend, Oregon

 3 Tab Composition Roofing Example

3-Tab

The least expensive option is known as "3-Tab" shingles.  This type of roofing has been refined over the years.  It appears as a one layer product with a distinct pattern of tabs. This pattern is caused by vertical slots notched into the visible part of each shingle, splitting the lower half of the shingle into three tabs.

 Composition Laminate Roofing Example

Laminates

Also known as dimensionals, have become the most common choice in composition roofing. They are a more recent variant and are superior to the basic 3-Tab. Laminates have a second tabbed layer fused to a base shingle, effectively doubling the materials thickness. They have a strong resemblance to wood shake and are available in a wide range of colors.

 Composition Premium Roofing Example

Premium

Premium shingles are sometimes referred to as Grand Sequoia, Presidential, or Grand Canyons.  They are a heavier Laminate and represent the absolute top of the line in Composition.  They are thicker, heavier and physically larger than standard Laminates. Premium shingles often incorporate extra features like moss retardants and modified asphalts.

Identifications

Composite roofs are identified by the variety of ingredients that go into their manufacture. They can be made from asphalt or asbestos shingles, tar paper roofing, shake, slate, laminate, wood, plastics and other materials. The mixing of these ingredients creates a superior roofing shingle and allows for diversity in design.

Types

Composite roofs are available in types like composite slate, composite tile, three-tab shingle, laminate and hail resistant. The varying types work with design and durability preferences. Composite slate and tile roofing replicates the look of tile and slate. The three-tab composite shingle uses the standard shingle design while adding durability. Laminated composite roofing has an additional layer of laminated material for design and protection. Hail-resistant composite roofing contains elastifiers for flexibility that weathers hail damage.

Benefits

Composite-roofing warranties can vary from 30 to 50 years. Non-composite roof shingles may only be warranted for about 15 to 20 years. The longer warranty periods reflect the higher durability of composite roofing. Composite roofing can also be made with additives to offer resistance to moss, algae and UV degradation. Composite roofing does not crack, split, peel or warp. It can be made in almost any color, shape or size. Composite roofing is also environmentally friendly, as many of the ingredients are partly from recycled items such as post- industrial plastics, hemp fibers and used roofing material.

Considerations

Composite roofing can be installed on roof pitches from 2/12 to 2/20. While it may be installed over top of some older roofing materials, it is recommended that the old roofing material be removed instead.

Ref. eHow