Flat Roofs That Actually Drain.
Almost every flat-roof failure is a water-management failure: ponding water, tired seams, and details that were never flashed right. We install and repair TPO and flat systems with drainage as the first design decision — not an afterthought.
Call 310.880.9718
Where Flat Roofs Live In Southern California
- Mid-century and modern homes with low-slope sections
- Garages, patios, and room additions tied into pitched roofs
- Commercial and multi-family buildings
- The flat section behind the parapet that nobody sees until it leaks
What We Do
TPO installation
Heat-welded seams, proper substrate prep, and terminations detailed to last. White TPO also reflects heat — a real consideration for SoCal cooling loads.
Drainage correction
Tapered insulation and drain placement that move water off the roof within 48 hours of rain, per good practice — because standing water finds every flaw and shortens every material’s life.
Seam and detail repair
Failed seams, punctures, pulled flashing, and ponding-area repairs on existing flat systems.
Tie-ins
The transition between a flat section and a pitched roof is where mixed roofs leak. As a multi-trade contractor we detail the whole junction, not just our half of it.
Commercial And Multi-Family
Mars Construction Industries carries A and B licenses and SB-PW / SB(Micro) certification, and we self-perform across trades — so a commercial flat roof that needs deck work, drains, or parapet repair doesn’t turn into a three-contractor relay. One contract, one schedule, one accountable team.
Call 310.880.9718 or email brett@marsx.construction for a flat-roof evaluation.