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Steep-Slope Roofing
Roof systems and materials are divided into two general classifications: low slope and steep slope roofing.
Steep-slope roofing systems are typically composed of individual pieces or components installed in shingle fashion. Steep-slope roof assemblies usually consist of three primary parts:
- Roof Deck - a roof deck is the structural substrate which is usually a wood-based material such as plywood or oriented strand board (OSB).
- Underlayment - underlayment provides temporary protection until a roof covering is installed and provides a secondary weatherproofing barrier. Sometimes underlayment is referred to as “felt” or “paper.”
- Roof Covering - the roof covering is the external water shedding material.
There are six generic classifications of steep slope roof coverings, as listed below:
Asphalt Roof Shingles
There are three components within asphalt shingles:
- Base Material - either an organic felt or glass-fiber mat that provides support for the weather-resistant components and gives a roof shingle strength
- Asphalt & Fillers
- Surfacing Material - generally in the form of mineral granules that provide protection from impact and UV degradation and improve fire resistance
The most common form of asphalt shingles are strip shingles. Shingles may be produced in a single layer or two or more layers to create your shingle roof. Many types of shingles contain a strip of factory applied adhesive that is activated by the sun’s heat after installation and seals each shingle to the next course. The seal strip also provides much of a shingles resistance to wind uplift.
Clay Roof Tile
Clay tile is produced by baking molded clay into tile. The density of the clay is determined by the length of time and temperature at which the tile is heated. Tiles may be glazed and/or surface texture treatments applied. Thus, there are a wide variety of tile profiles, styles, finishes and colors available to create your tile roof. In addition, separate accessory roof tiles of various shapes designed for use on ridges, hips, hip intersections and gable ends may be available. Installation methods depend on whether the roof tile is two pieces, one piece, interlocking or flat.
Concrete Roof Tile
Concrete tiles are made of varying proportions of Portland cement, sand and water which is mixed and extruded on molds under high pressure. The exposed surface of a tile may be finished with cement-related material colored with synthetic additives. The roof tiles are cured to reach the required strength. They generally have lugs on their undersides for anchoring to batten strips. There are additional waterlocks or interlocking ribs on the longitudinal edges that impede movement and prevent water infiltration.
As with clay tile, concrete tiles are available in a wide variety of profiles, styles, finishes and colors. Color may be added to the surface or dispersed throughout a tile. Special texture may be added in surface treatment. Each type of tile roof system may include ridge, hip, hip intersection, gable end and finial accessory tiles of various shapes.
Hercules Roofing is Your Residential Roof Repair Company
Hercules Roofing takes pride in our ability to work with any and all roof types to solve roofing problems, big or small, in a timely and responsive manner.
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