Flat Roofing
TPO, modified bitumen, BUR, and flat roof coatings for residential and commercial properties across Southern California. Expert installation, repair, and waterproofing.
Flat Roofing Installation & Repair
Flat and low-slope roofing systems require specialized expertise. Unlike pitched roofs, flat roofs rely entirely on their membrane and drainage systems to keep water out — making proper installation and regular maintenance critical. True Guard Roofing has extensive experience with all major flat roofing systems used in Southern California.
Whether you have a residential flat roof, a commercial building, or a multi-unit property, we'll assess your current system and recommend the best solution — whether that's a repair, a coating, or a full replacement.
- TPO (thermoplastic polyolefin) flat roof systems
- Modified bitumen installation and replacement
- Built-up roofing (BUR / tar and gravel)
- Flat roof coatings and waterproofing
- Flat roof repair and leak detection
- Drain and scupper inspection and clearing
Why Choose True Guard for Flat Roofing?
Flat roofing is one of the most technically demanding areas of roofing. Seam integrity, proper drainage slope, flashing at penetrations and parapet walls — every detail matters. True Guard Roofing's crews are experienced flat roofers who understand what it takes to install a watertight, long-lasting flat roof system.
We're fully licensed (CA License #1157011), bonded, and insured, and we serve both residential and commercial property owners throughout Southern California. We work with leading flat roofing manufacturers and can provide extended warranties on qualifying installations.
Contact us today for a free flat roofing estimate. We'll inspect your roof, explain your options, and provide a detailed proposal with no obligation.
Flat Roofing FAQs
What is the best flat roofing system for Southern California?
TPO is one of the most popular flat roofing systems in SoCal — it's energy-efficient (white reflective surface reduces cooling costs), durable, and cost-effective. Modified bitumen is another excellent option, especially for roofs with heavy foot traffic or complex penetrations. We'll recommend the best system for your specific situation.
How long does a flat roof last?
A properly installed TPO or modified bitumen flat roof typically lasts 15–25 years. Built-up roofing (BUR) can last 20–30 years. Regular maintenance and prompt repair of minor issues can significantly extend the life of any flat roofing system.
Why does my flat roof keep leaking?
Flat roofs are more prone to ponding water than pitched roofs, which can accelerate membrane deterioration and cause leaks at seams, penetrations, and drains. Common causes include improper installation, aging membrane, clogged drains, and damaged flashing. We'll identify the source of your leak and provide a lasting repair.
Can you coat my existing flat roof instead of replacing it?
In many cases, yes. If your existing flat roof membrane is in reasonably good condition, a roof coating can extend its life by 10+ years at a fraction of the cost of replacement. We'll inspect your roof and let you know if coating is a viable option.
Material Options
Roofing Materials We Use
We work with a range of quality materials suited to Southern California's climate and your home's specific needs.
TPO (Thermoplastic Polyolefin)
The most popular modern flat roofing system. White reflective membrane with heat-welded seams for a watertight installation.
- Energy-efficient white surface
- Heat-welded seams — no adhesives
- 15–20 year warranty options
- Excellent UV and puncture resistance
Modified Bitumen
A proven multi-layer flat roofing system with excellent waterproofing and flexibility across temperature ranges.
- Multi-layer waterproofing
- Flexible in temperature extremes
- Durable in high-traffic areas
- Cost-effective installation
Built-Up Roofing (BUR)
Traditional multi-ply flat roofing system using alternating layers of bitumen and reinforcing fabric.
- Multiple redundant layers
- Long track record
- Excellent waterproofing
- Gravel surface option for UV protection
Where We Work
Flat Roofing Service Areas
We provide flat roofing throughout Southern California.