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Bert Roofing, Est 1988 Dallas Roofing You Can Trust Family Owned · Since 1988 · RCAT Licensed
Roof Repair and Replacement

Low-Slope Roofing in Dallas

We install, repair, and replace low-slope roofing on Dallas homes, including porches and additions. We select materials suited to the roof’s pitch and address the drainage, seams, and flashing details that keep water out.

White TPO membrane beside asphalt shingle roof sections on a low-slope roofing project in University Park.
Serving Dallas Since 1988
Materials and Drainage

The Right Roofing System for a Low-Slope Roof

A porch or addition can have much less pitch than the main roof. When that slope is too low for asphalt shingles, the roof needs a system designed for low-slope conditions. We install TPO and modified bitumen, selecting the material to fit the roof’s slope, layout, and existing conditions.

Low-slope does not mean the roof should be flat. Water still needs a path to a gutter, drain, scupper, or roof edge. We evaluate drainage along with the seams, penetrations, and connections to walls and adjoining roof sections. Choosing the material is only part of the work; those details need to be addressed as well.

Roofing Systems

TPO and Modified Bitumen Roofing

The right material depends on more than the roof’s pitch. We consider the roof’s layout, the condition of the underlying deck, and how the new roofing will connect to walls, drains, and adjoining roof sections.

What We Do

Low-Slope Roof Repair and Replacement

Low-Slope Roofing Questions

Is a low-slope roof the same as a flat roof?

“Flat roof” is a common name, but the roof should still have slope for drainage. Water needs a path to a gutter, drain, scupper, or roof edge. Installing a new membrane does not, by itself, correct low spots or inadequate drainage. We evaluate those conditions when planning repairs or replacement.

Does low-slope roofing have to be white?
No. TPO is commonly installed in white, although other colors are available. Modified bitumen has a granulated surface available in several colors that complement asphalt shingles. On a visible porch or addition roof, that can make modified bitumen a better choice for the home's appearance. We consider color along with slope, drainage, and the installation requirements of each system.
Is self-adhered modified bitumen a good option for a small roof?

It can be a practical choice for porches, additions, and other small roof sections with adequate slope. A shingle crew trained and experienced in the selected self-adhered system can often install it as part of the same roofing project, without torch application. The roof still needs a suitable substrate, the specified base and cap layers, and properly completed seams and flashing.

What TPO thicknesses and attachment methods are available?
Common TPO membrane thicknesses include 45, 60, and 80 mils. A mil is one-thousandth of an inch, not a millimeter. TPO can be mechanically attached with fasteners and plates or fully adhered to an approved surface with roofing adhesive. Both methods use heat-welded seams. We specify the membrane thickness and attachment method for the roof; “TPO roofing” alone does not describe the complete system.
Can a leaking low-slope roof be repaired instead of replaced?
Often, yes. A leak does not automatically mean the entire roof needs replacement. We inspect the membrane, seams, flashing, drainage, and underlying conditions to determine whether a targeted repair is practical. The decision depends on the roof's overall condition and whether we can make a sound repair using materials compatible with the existing system.
How much does low-slope roof repair or replacement cost?
We provide an estimate for the specific roof after evaluating its condition and the work needed. Our scope identifies the repair or replacement area, roofing system, needed deck repairs, flashing work, and any drainage improvements. For TPO replacement, it should also identify membrane thickness and attachment method. Compare those details along with the price so you are comparing the same work.
Schedule Your First Inspection

Book a Roof Inspection

Most homeowners learn more from a 45-minute photo-documented inspection than they did from the day their roof was installed. Tell us about your home and we will book the visit.