Flat roofs do not shed water as quickly as pitched roofs, so small defects leak sooner. Many Los Angeles homes have a flat section over an addition, porch or garage that never gets looked at until it leaks.
What we check
- Ponding areas and drainage paths
- Seams, laps and membrane surface condition
- Drains, scuppers and downspouts
- Flashing where the flat roof meets walls or a pitched roof
- Coatings and cap sheet wear
- Penetrations from vents, skylights or equipment
Problems we find most often
- Low spots holding water after rain
- Cracked or blistered cap sheet
- Open laps at transitions to pitched roofs
- Clogged scuppers
How long does it last?
Flat roofs typically last 15–25 years depending on the system (modified bitumen, TPO, built-up) and how well water drains.
Signs it is time for an inspection
- Standing water days after rain
- Bubbles or cracks in the surface
- Leaks near walls or skylights
Questions
Is ponding water normal on a flat roof?
Small amounts that evaporate within about 48 hours are common. Water that sits longer speeds up wear and should be addressed.
After the inspection
Emergency Roof TarpingRoof RepairRe-Roofing & Roof Replacement
Other roof inspections
Residential Roof InspectionCommercial Roof InspectionTile Roof InspectionShingle Roof InspectionMetal Roof InspectionSlate Roof InspectionWood Shake Roof InspectionSynthetic & Composite Roof InspectionPre-Purchase Roof Inspection
Inspection service areas
MontroseLa CrescentaGlendalePasadenaLa Cañada FlintridgeBurbankSunland–TujungaLos Angeles