Low- vs. Steep-Slope Roofing Systems

Understanding the Different Classifications 

There are two main classification of roofing systems: flat/low-slope and steep-slope roofing. In the past, flat roofs were almost exclusively used for commercial buildings, and steep-slope roofs were mainly found on residential buildings. Those designations aren’t as strict anymore since homeowners have begun to enjoy the benefits of low-slope roofs.

While called flat roofs, these roofs typically have a bit of a slope to allow for water drainage, but they do require more maintenance (debris removal, etc.) to prevent leaks. Flat Roof Systems must be Watertight. A flat roof typically has a slope equal to or less than 3:12 (14 degrees).

 Steep-slope roofs are installed on properties that have slopes that exceed 14 degrees. This makes it easier to shed water and snow. Understanding the slope of your roof is important because it affects everything from a simple roof repair to a complete re-roofing job

Wortham Bros has experience working with every type of roofing system. With our more than 35 years of experience and over 100,000 installations our expertise will help ensure you get the right roof system and make your new roof installation stress free.

Types of Roofing Systems

Low-Slope Roofs 

Low-slope roofs typically have the following components:

  • Reinforcement to add strength and stability.
  • Weatherproofing layers for moisture protection.
  • Surfacing to protect the weatherproofing.

Types of low-slope roofing include:

  • Built-up roofing (BUR)
  • Single-ply membranes, including Thermoplastic Membranes (PVC & TPO) and Thermoset Membranes (EPDM)
  • Metal/Standing Seam
  • Modified Bitumen
  • Coatings; Acrylic and Silicone Roof Systems



Steep-Slope Roofs 

Steep-slope roofs typically have the following components:

  • Roof deck
  • Underlayment
  • Roof covering for water shedding

Examples of Steep-Slope Roofing materials include:

  • Asphalt Shingles/Composition Shingles
  • Metal/Standing Seam
  • Slate
  • Wood Shake & Shingle
  • Clay & Concrete Tiles
  • Composite and Synthetic Roof Systems 

Talk to Us About Your Roofing Options 

Whether you’re just getting a roof repair or a full replacement, Wortham Bros. will direct you to the right product for your roofing system. We have partnerships with some of the top manufacturers in the business, ensuring that you’ll find exactly what you need, no matter your budget. 

  • Top 1- Buildzoom 2021
  • Better Business Bureau A+ Rating
  • ATLAS
  • Certainteed Select Shingle Master
  • Owens Corning Platinum Roofing Contractors
  • Good Contractors
  • GAF
  • Tamko Roofing Products

contact Us Today

  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please enter your address.
  • Please make a selection.
  • Please enter a message.

What Makes Us a company Texas Trusts:

  • Offering The Best Warranties in the Industry
  • Family-Owned Business Since 1986
  • One-Stop Shop. Certified. Knowledgeable.
  • New Construction & Roof Replacement