Flat Roof

Commercial & Residential Flat Roofing Solutions

Expert Low-Slope Systems Engineered for Superior Water Protection & Efficiency

Flat and low-slope roofs present unique architectural challenges. Unlike steep-slope roofs that shed water immediately, flat roofs require seamless waterproofing, precision drainage planning, and high-performance commercial-grade materials to prevent ponding water and leaks.

As a certified commercial and residential flat roofing contractor, we do not rely on outdated hot-mop methods or quick-fix coatings. We specialize in two of the industry’s most durable, proven low-slope technologies: Single-Ply TPO Membranes and CertainTeed Flintlastic® 3-Ply Modified Bitumen Systems.

Our Core Flat Roofing Technologies

We select and install flat roofing systems tailored to your building’s structural design, roof traffic, tree canopy, and energy goals.

1. TPO Single-Ply Membrane Systems
  • Best For: Commercial buildings, modern residences, large flat expanses, and heat-reduction goals.
  • Heat-Welded Seams: TPO (Thermoplastic Polyolefin) sheets are fused using hot air to create physical seams that are stronger than the membrane itself, completely eliminating glued-seam failures.
  • Energy Savings: High reflectivity reflects up to 85% of solar radiation, reducing cooling load and indoor ambient temperatures.
  • Chemical & Puncture Resistance: Strong resistance to grease, oils, chemical exposure, ozone, and structural movement.
2. CertainTeed Flintlastic® 3-Ply SBS System
  • Best For: Heavy foot traffic areas, roofs near overhanging trees, decks, and multi-layer structural reinforcement.
  • Multi-Layer Toughness: Built using a 3-layer SBS modified bitumen assembly that combines rubberized flexibility with asphaltic strength.
  • Granule Surface Finish: Heavy ceramic granules provide extreme UV resistance, impact protection against falling debris, and customized color matching.
  • Self-Adhering & Torch Options: Offers clean, flame-free, self-adhered installation options ideal for residential applications and tight job sites.
Comparing Your Flat Roof Options
FeatureTPO Single-Ply SystemCertainTeed Flintlastic® 3-Ply
System TypeHeat-welded thermoplastic membraneMulti-layer SBS rubberized asphalt system
Puncture ResistanceHigh (reinforced scrim)Exceptional (3 layers of reinforced protection)
Foot Traffic SuitabilityModerate (walkway pads recommended)High (designed for heavy foot traffic)
Solar ReflectivityHigh (Cool Roof rated)Available in reflective & standard granule finishes
Lifespan Expectancy20–30+ Years25–30+ Years
How We Build a Complete Flat Roof System

A leak-free flat roof relies on a complete, engineered assembly designed to insulate, drain, and seal your structure.

[ Cap Layer ]           --> TPO Heat-Welded Sheet OR CertainTeed Flintlastic Cap Sheet
        │
[ Mid & Base Layers ]   --> CertainTeed Flintlastic Ply Sheets (3-Ply System)
        │
[ Tapered Insulation ]  --> ISO boards angled to direct standing water toward drains/scuppers
        │
[ Vapor Barrier ]       --> Seals structural deck against indoor moisture migration
        │
[ Roof Deck ]           --> Inspected Plywood, Metal, or Concrete Deck Foundation
  1. Deck Inspection & Prep: We strip old, compromised materials down to the deck, repairing rotted plywood or damaged substrate to ensure a solid foundation.
  2. Tapered Insulation Systems: Standing water is the enemy of any flat roof. We design and install custom tapered Polyiso insulation boards to direct rainfall toward drains, gutters, and scuppers.
  3. Multi-Layer / Heat-Fused Application:
    • For TPO, we mechanically attach or fully adhere the insulation and heat-weld all seams at precise temperatures.
    • For Flintlastic®, we lay a 3-layer system consisting of a self-adhering base sheet, a mid-ply sheet, and a heavy granulated cap sheet for maximum thickness and impact resistance.
  4. Flashing & Edge Detailing: Flat roof leaks almost always happen at terminations. We custom-fabricate metal edge flashings, wall terminations, pipe boots, and drain boots to seal every penetration watertight.
Commercial & Residential Flat Roof Services
  • Complete Roof Replacements: Full tear-off and replacement of failing EPDM, built-up asphalt, or aged single-ply roofs.
  • Retrofits & Recover Systems: Cost-effective insulation overlay and re-roofing solutions when structural decks are dry and intact.
  • Parapet Wall & Coping Metal: Custom-bent sheet metal coping caps and counter-flashings for wall junctions and building perimeters.
  • Routine Inspections & Maintenance: Clearing internal drains, checking heat-welded seams, and inspecting sealants to double the lifespan of your flat roof.
Get a Flat Roof Built to Handle Standing Water

Don’t let flat roof leaks interrupt your business or damage your home. Partner with a flat roof specialist who understands proper drainage, seam integrity, and multi-ply construction.

Ready to Upgrade Your Roof?

Get an authentic, fully warrantied roofing system built to last for decades.
[Call Now: 301) 208-3201] [Request Your Free Estmate]