Roof system · Flat & low-slope
Flat & Low-Slope Roofing
Low-slope and flat assemblies — TPO, PVC, modified bitumen, and built-up roofing — depend on proper insulation, drainage, and watertight seams or plies. Residential porches, additions, and commercial decks each need an assembly matched to use and traffic.
We focus on how water leaves the plane: slope, drains, cricket details, and wall and penetration flashings. Single-ply systems require compatible cover boards and fastening patterns; modified and BUR builds depend on adhesion and overlap quality.
Best for
- Commercial decks, storefronts, and multi-family sections with membranes or modified systems
- Residential low-slope areas tied to HVAC curbs, parapets, or interior drains
- Recover vs. tear-off decisions where existing insulation moisture must be investigated
What to know
- Warranty and code paths differ from steep-slope shingle installs — laps and seam welding are critical.
- Insurance documentation for flat roofs often needs clear cause-and-assembly narratives.
- Traffic pads, walkways, or equipment mounts should be planned into the membrane design.
Strata clarifies assembly type and condition, aligns replacement or repair scope with manufacturer systems, and keeps transitions to steep-slope areas or walls detailed in the plan.
Ready to talk about your roof?
Start with an inspection and clear guidance on what makes sense for your home.