★★★★★
“Prompt, very informative, and honest. Bill inspected my roof. No leaks. End of story. They had certified my roof a year prior. I am very satisfied with the level of service.”
EG
Eddie Gomez
Flat Roofing
Flat roofing from a licensed and liability insured roofing contractor. Roof Doctors installs, replaces, inspects, and certifies flat and low-slope roofs, including TPO, EPDM, and PVC single-ply membrane, since 1987, with written estimates and no advance deposit.
1987
Roofing since
14
Insurance carriers
Flat
and low-slope systems
Flat Roof Pros and Cons
A flat or low-slope roof is one too shallow for shingles or tile to shed water, so it is covered with a continuous system instead: a single-ply membrane such as TPO, EPDM, or PVC rolled across the roof. Most commercial buildings have flat roofs, and so do many modern and mid-century homes with flat sections, patios, and additions. Here is an honest look at where a flat roof shines and where it does not.
Pros
Why flat and low-slope systems work
- Covers roofs too shallow for shingles or tile to shed water
- Single-ply membranes install across large areas efficiently
- White, reflective membranes can lower rooftop heat gain and cooling costs
- Problems tend to start at the seams, flashing, and penetrations, which an inspection pinpoints
Cons
The trade-offs to weigh before you choose
- Flat roofs are prone to ponding water where drainage is poor
- Performance depends heavily on install quality, especially the seams
- The right membrane depends on the building, budget, and how the roof is used
- A dark membrane absorbs heat, while a reflective one costs more or differs in material
Types of Flat Roofing
Flat and low-slope roofs are covered with a single-ply membrane. The right choice depends on the building, the budget, and how the roof is used. Each links to its own detailed page.
TPO Roofing
A white, reflective thermoplastic membrane with heat-welded seams, the leading choice on commercial flat roofs. Cost-effective and energy-efficient, with a typical service life of about 20 to 30 years.
EPDM Roofing
A black synthetic rubber membrane seamed with tape or adhesive, with a long, proven track record often reaching 25 to 30 years or more. Durable and flexible, though its dark surface absorbs heat rather than reflecting it.
PVC Roofing
A heat-welded thermoplastic membrane like TPO, but more resistant to chemicals, grease, and fire. The premium option for restaurants and industrial roofs, at a higher cost than TPO.
Compare Roofing Materials
Flat and low-slope roofing is one of several roofing materials we work on. For steep-slope roofs, explore the sibling material hubs to compare.
Asphalt Shingle Roofing
The most common residential roof: cost-effective and versatile.
Tile Roofing
Concrete and clay tile: long-lived and distinctive.
Wood Shake Roofing
Cedar shake restoration and installation, a specialty since 1987.
Metal Roofing
Durable metal roofing, from standing seam to stone-coated steel, built for a long service life.
Synthetic Roofing
Engineered composite roofing that mimics shake or tile at a lighter weight.
Flat Roofing Services
From a documented inspection to a full membrane replacement, these are the services we perform on flat and low-slope roofs, each with its own detailed page.
Roof Replacement
Full tear-off and re-membrane when a flat roof reaches the end of its life.
Roof Inspections
Documented membrane, seam, and drainage condition assessment with a written estimate.
Roof Certification
Certification when the flat roof passes inspection as it stands, for commercial and real estate transactions.
Roof Coating
Protective coatings for flat and low-slope roofs to extend service life.
Order a Roof Inspection
Two intake paths. Both connect you with a licensed inspector within 1 to 2 business days.
Homeowners
Homeowner Inspection
Wondering whether your flat roof is sound or needs a full re-membrane? Request a roof inspection and a knowledgeable technician will assess your membrane, seams, and drainage and provide a written estimate.
Pick a time that works for you. It takes about two minutes.
Realtors
Realtor Inspection
Managing a transaction? Ask about our roof certification for real estate and commercial deals, documenting the flat-roof condition for buyers and sellers.
Pick a time that works for you. It takes about two minutes.
How We Install a Flat Roof
A clear, no-pressure process. We respond promptly and schedule inspections within 1 to 2 business days.
1
Inspect and Measure
A licensed inspector assesses the existing roof, measures the area, checks drainage, and recommends the right system for the building.
2
Tear-Off and Prep
We remove the old roof or prepare the existing substrate, inspect the deck for damage, and create a clean, sound base.
3
Insulation and Coverboard
On a membrane system we install rigid insulation and a coverboard to build the thermal layer and give the membrane a smooth, uniform base.
4
Membrane
We install the single-ply membrane, rolled out and seamed across the roof.
5
Flashing and Details
We detail the roof at parapets, curbs, drains, and penetrations, where flat roofs most often leak.
6
Water-Test and Warranty Registration
We inspect and water-test the completed roof, clean the site, and register your workmanship and manufacturer warranties.
Why Property Owners Choose Roof Doctors
Decades of flat and low-slope membrane expertise, backed by real warranties and honest assessments.
1987
Roofing since
14
Insurance carriers
Flat
and low-slope systems
4.7
Google rating
Flat and low-slope capability
We install, replace, inspect, and certify single-ply membrane, including TPO, EPDM, and PVC, on commercial and residential flat and low-slope roofs.
No advance deposit
You pay after the work is completed to your satisfaction. No deposit required to schedule.
Licensed and liability insured
A fully licensed roofing contractor with General Liability Insurance on every project.
Financing Available
Financing is available on qualifying roofing projects through our lending partners. Ask your inspector about current options.
Warranty Protection
Every Roof Doctors flat roof is backed by layered warranty coverage, including manufacturer membrane protection on replacements.
Manufacturer Membrane Warranty
Membrane system coverage on replacements
We install single-ply membrane systems to manufacturer specification, which qualifies full replacements for the manufacturer's membrane warranty on the material.
1 Year
Workmanship Warranty
Labor and materials on every project
Covers the quality of our installation and workmanship on all completed flat-roof work, including the seams.
Storm Response and Insurance Claims
We Handle Your Insurance Claim
Storms, wind, and debris can puncture and lift a flat-roof membrane, and that damage may be covered by your property insurance. Roof Doctors documents the membrane and seam damage, works directly with your adjuster, and processes claims within the Xactimate and Symbility estimating platforms.
Areas We Serve
Roof Doctors serves commercial and residential properties across our service area. Find your area or view the full directory.
California
Nevada
What Our Customers Say
★★★★★
4.7 out of 5 across Roof Doctors' Google Business Profiles
★★★★★
“Showed up quickly during a storm, figured out problem, provided a solution.”
AL
April L.
★★★★★
“Troy was informative and professional. Would recommend to other home owners.”
MG
Ms. Gibson
Flat Roofing: Frequently Asked Questions
What is a flat roof?
A flat or low-slope roof is one too shallow for shingles or tile to shed water. Instead it is covered with a continuous system: a single-ply membrane such as TPO, EPDM, or PVC rolled across the roof. Most commercial buildings and many modern homes with flat sections use one.
What are the types of flat roof?
The most common flat and low-slope systems are single-ply membranes: TPO, a white reflective thermoplastic with heat-welded seams; EPDM, a black synthetic rubber membrane with a long track record; and PVC, a heat-welded thermoplastic that resists chemicals, grease, and fire. Built-up and modified-bitumen systems are also used on commercial roofs.
Which flat roof membrane is best?
It depends on the building and how the roof is used. TPO is a cost-effective, reflective default on commercial flat roofs. EPDM has the longest track record and suits large low-slope roofs where proven durability matters most. PVC is the premium choice where a roof is exposed to grease, chemicals, or fire. We recommend the right one after an inspection.
Which lasts longer, TPO or EPDM?
EPDM has the longer track record and often lasts 25 to 30 years or more, while a quality TPO roof typically lasts about 20 to 30 years. TPO's advantage is its reflective surface and lower cooling costs; EPDM's is its proven durability. The right choice depends on the building and the priority.
Why do flat roofs get ponding water?
Flat and low-slope roofs drain more slowly than pitched roofs, so where the slope or the drains are inadequate, water can pool, or pond, on the surface. Ponding is one of the main concerns on a flat roof, which is why drainage is a central part of the design and why we check it during every inspection.
When does a flat roof need to be replaced?
An inspection determines it. If the membrane still has service life and is sound, the roof can be inspected and, when it passes as it stands, certified. Widespread membrane wear, chronic ponding, or a roof at the end of its life points to a full re-membrane. Roof Doctors inspects, installs, replaces, and certifies flat and low-slope roofs.
Do you require a deposit?
No. Roof Doctors does not require an advance deposit. You pay after the work is completed to your satisfaction.
Schedule Your Roof Inspection
A licensed inspector will assess your flat or low-slope roof, check the membrane and seams, document any issues, and provide a written estimate. No obligation, no advance deposit.
Licensed and Liability InsuredCommercial CapableNo DepositWritten Estimate