Bay Area Commercial Steep Slope Roofing Contractor


Ever since we were founded in 1957, Andy’s Roofing has excelled at installing Steep Slope Roofing applications. We are trained and certified to install a wide range of steep slope roofing systems such as Metal Panel Roofing, Asphalt Shingle Roofing, Tile Roofing, and Wood Shake and Shingle Roofing.

When it comes to pitched roofing, Andy’s Roofing is a certified installer for many of the roofing industry’s leading steep slope roofing manufacturers, including:

  • GAF
  • Certainteed
  • AEP Span
  • Garland
  • Eagle Tile
  • Pabco
  • Owens Corning
  • Malarkey
  • Boral Tile
  • Metal Sales
  • McElroy Metal


Metal Panel Roofing

Metal Panel Roofing is a durable, long-lasting choice for a steep-slope roof. When installed correctly, metal panels can last for 30+ years.

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Asphalt Shingle Roofing

Asphalt Shingles are one of the most common roofing types. You’ve most likely seen them on houses and schools in your neighborhood.

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Tile Roofing

Clay and concrete Tile Roofing systems are as elegant as they are durable. They can add a rustic charm to your building and look sharp next to other stone or natural building material elements.

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Wood Shake and Shingle Roofing

Roofing materials don’t get much more natural than Wood Shakes and Shingles. They are often manufactured from either cedar or redwood trees.

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Commonly Asked Questions About Commercial Steep Slope Roofing

What is considered a steep slope roof?

Steep slope roofing generally refers to roofs with a slope of 25 degrees or more. The most common types of steep slope roofs are asphalt shingles, metal roofing, concrete or clay tile, and wood shakes or shingles.

Are steep roofs more expensive?

Steeply pitched roofs are generally less expensive to install. That is because the roof’s structural slope helps with moving water off the roof, so it is not as critical or labor-intensive to seal all gaps.

What roof covering materials are used on steep slope roofs?

For steep slope roofing, the main types of materials you will find are asphalt shingles, metal roofing, concrete or clay tile, and wood shakes or shingles. Asphalt shingles have two popular varieties: 3-tab and architectural. The 3-tab shingle has tabs that are overlaid over the body of the shingle, while the architectural shingle has a ridge cap and a tab that is laid over the body of the shingle.

The main difference between the two is that the architectural shingle has a thicker body than the 3-tab shingle. The thicker body on the architectural shingle provides more coverage, so it’s more resistant to issues like wind uplift, so it will hold up better on steep slope roofs.

What are the major differences between a low slope roof and a steep roof?

Steep roofs have a slope of more than 3” in 12”. These roofs are typically used for residential buildings and other smaller structures.

Low slope roofs, on the other hand, are more common in commercial or industrial applications. They have a slope of less than 3” in 12”, which means the roof will not usually be visible from the ground.

Which type of roofing material should be installed on a low slope roof?

If a low slope roof is on a commercial building it might be better to use a material such as metal roofing material to ensure that the roof itself will last. Ultimately, the choice is up to the building owner and mostly comes down to aesthetics and how they would like the overall building to look.

Asphalt shingles and wood shakes are popular choices on residences, while concrete or clay tile can add a rustic charm to your building.

What type of warranty comes with a roof replacement?

Roof replacement is a major expense, so you want to make sure you protect yourself against any unforeseen issues. One type of warranty is an installer “workmanship” warranty. This type of warranty protects against defective workmanship, such as a shingle not being properly installed or a wood spline not being properly cut.

Other Manufacturer warranties usually cover material manufacturing defects and other failures. These warranties can last up to the lifetime of the building owner.

Need a repair or re-roof estimate?

Fill out the form below and we’ll contact you to discuss your project and schedule an estimate.


Andy’s Roofing Co., Inc.

2161 Adams Avenue

San Leandro, CA 94577

Phone: 510-777-1100

Fax: 510-777-1102

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