TPO
Heat-welded thermoplastic polyolefin, usually white. The most specified low-slope membrane in the country: reflective, weldable and cost-effective over large square footage.
- Mechanically attached, adhered or induction-welded
- 45, 60 and 80 mil
- Cool-roof reflectivity for energy codes
EPDM
Synthetic rubber membrane with a decades-long track record. Handles thermal cycling and foot traffic well, and repairs cleanly with seam tape and primer.
- Black or white, 45 to 90 mil
- Ballasted, adhered or fastened
- Straightforward long-term maintenance
PVC
The choice where grease, chemicals or heavy exhaust are in play — restaurants, food processing and industrial rooftops. Welded seams and strong chemical resistance.
- Kitchen exhaust exposure
- Fleece-back over existing substrates
- Hot-air welded, watertight seams
Modified bitumen
Asphalt membrane reinforced with polymer and installed in two or more plies. SBS for flexibility through freeze-thaw cycles, APP for torch-applied durability.
- Torch, cold-adhered or self-adhered
- Granulated cap sheets
- Excellent redundancy and puncture resistance
Built-up roofing
The traditional tar-and-gravel assembly: alternating layers of bitumen and reinforcing felt topped with aggregate or a cap sheet. Heavy, redundant and long-lived.
- Three- and four-ply assemblies
- Gravel surfacing or mineral cap
- Restoration and recover of existing BUR
Standing seam and architectural metal
Concealed-fastener structural panels for slopes, canopies, mansards and full metal buildings. Long spans, long service life, minimal maintenance.
- Steel, aluminum, zinc and copper
- Snap-lock and mechanically seamed
- Custom flashing and coping fabrication
Corrugated and R-panel
Exposed-fastener metal over agricultural, industrial and light commercial structures. Economical to install and straightforward to retrofit.
- Panel replacement and fastener retrofit
- Metal-over-metal retrofit framing
- Coatings to extend service life
Spray polyurethane foam
Seamless foam sprayed in place and then coated. Self-flashing around penetrations, adds R-value, and builds its own slope toward drains on ponding roofs.
- Installed over most existing substrates
- Silicone or acrylic topcoat
- High insulation value per inch
Liquid-applied coatings
Silicone, acrylic and urethane systems that restore an aging roof instead of tearing it off, often with a renewable warranty and far less disruption to tenants.
- Silicone for ponding water
- Acrylic for reflectivity and cost
- Renewable warranties of ten to twenty years
Vegetative and ballasted assemblies
Green roofs, paver-ballasted decks and amenity terraces over waterproofed assemblies, increasingly common on mixed-use and institutional buildings in the District.
- Extensive and intensive green roofs
- Paver and pedestal amenity decks
- Stormwater and energy code compliance
Steep-slope commercial
Multifamily, townhome associations, hotels and offices with pitched roofs — shingle, slate, tile and metal, scheduled building by building to limit disruption.
- HOA and property-management contracts
- Phased, unit-by-unit scheduling
- Full documentation for boards and owners
Maintenance and emergency service
Scheduled inspections, drain clearing, seam and flashing repair, and 24/7 emergency response so a leak never becomes a business interruption.
- Annual and semi-annual inspection programs
- Leak response with photo reporting
- Capital planning and budget forecasting
Licensed for the whole building
Our Class A license, number 2705185756, covers considerably more than the membrane. Deck replacement, structural repair, parapet and coping rebuilds, interior finishes and full demolition are all in scope. For a property owner that means one contract, one schedule and one party accountable for the result, including the insurance claim when the loss is storm-related.
Have a building that needs eyes on it?
A written condition report with budget numbers, at no cost.
Get started
Request service
Free inspection, full photo report, and a straight answer about whether you have a claim.
The fastest way to reach us is the phone. Someone picks up, day or night.
888-808-0010- info@districtroofing.com
- District Roofing LLC, McLean, Virginia
- Class A RBC contractor, license 2705185756
- Virginia, Maryland and Washington, DC