Commercial Roofing Across the Austin–San Antonio Corridor
Commercial roofs are a different animal from residential. The systems are different, the failure modes are different, the budgets are larger, and the consequences of getting it wrong — production downtime, inventory damage, tenant lawsuits — are much higher. 3 Rivers Roofing handles commercial roofing across Central Texas for property owners, facility managers, general contractors, churches, schools, multi-family operators, and small business owners from Austin south through San Antonio and every town in between.
We work on warehouses, retail strip centers, restaurants, office buildings, churches, apartment complexes, ag and industrial buildings, and the kind of mixed-use properties that have become common across San Marcos, New Braunfels, Buda, Kyle, and the I-35 corridor. We bid commercial work straight — no padded scopes, no surprise change orders.
Commercial Systems We Install
TPO (Thermoplastic Polyolefin)
TPO is the dominant single-ply membrane in commercial roofing today, and for good reason. It's a heat-welded, white reflective membrane that handles low slopes and flat roofs with excellent durability. The white surface reflects solar radiation — a real cost savings on Texas air conditioning bills — and the heat-welded seams are stronger than the membrane itself. Properly installed TPO routinely delivers 20-25+ year service life. We install fully-adhered, mechanically-attached, and ballasted TPO systems depending on the building.
- 60-mil and 80-mil membrane thicknesses
- Hot-air welded seams (not glued)
- Reflective white surface for energy savings
- Excellent puncture and tear resistance
Modified Bitumen
Modified bitumen — "mod-bit" — is a multi-ply asphaltic membrane system, typically applied as a 2-ply or 3-ply assembly with a base sheet and a granulated cap sheet. It's tough, redundant, and forgiving of foot traffic, which makes it an excellent choice for buildings with heavy rooftop equipment, frequent service access, or older decks that need a robust system. We install both torch-applied and self-adhering mod-bit systems.
- Multi-ply redundancy — if one layer is compromised, the others still protect
- Excellent foot traffic durability
- Granulated cap sheet for UV protection
- Compatible with most existing low-slope substrates
Standing Seam Metal
For commercial buildings with sloped roofs — churches, agricultural buildings, modern retail and office buildings, schools — standing seam metal delivers the longest service life of any commercial system, often 40-50+ years. We install both snap-lock and mechanically-seamed (double-crimp) panels in 24-gauge Galvalume with Kynar 500 finishes. Metal also qualifies for energy efficiency credits and works with rooftop solar mounting systems.
Commercial Shingles
For sloped commercial buildings on tighter budgets — small offices, churches, multi-family — heavy architectural shingle systems remain a strong, cost-effective option. We install Atlas commercial-grade shingles with the same full system specification we use on residential: synthetic underlayment, ice and water shield, properly sized ventilation, and certified installation.
Why Central Texas Commercial Roofs Fail Early
The same things that wear out residential roofs in this region — UV, hail, wind, freeze-thaw — hit commercial roofs harder, because commercial roofs are usually larger, flatter, and more exposed. Add ponding water on poorly drained low-slope roofs, foot traffic from HVAC techs servicing rooftop units, and the punishment that satellite dishes and antenna mounts inflict on membranes, and a commercial roof has a lot of ways to fail prematurely. Most of those failures come down to two things: the wrong system specified for the building, or a correct system installed badly. We solve for both by walking the building, listening to how it's used, and recommending a system that actually fits — not just whatever has the best margin.
Working With Property Managers and Owners
We understand commercial roofing comes with paperwork and process: certificates of insurance, lien waivers, scheduled inspections, photo documentation, multiple bid formats, and tenant notification requirements. We handle all of it. We also do commercial roof maintenance contracts and annual inspections — far cheaper than waiting for a leak to wreck inventory or interrupt operations.
Bidding a commercial project? We provide formal scopes of work, line-item pricing, manufacturer specifications, and references on request. Email us or call (512) 557-2733 to start the conversation.
The Bottom Line on Commercial
A commercial roof is an asset, not just an expense. The right system installed by the right contractor pays for itself in lower energy bills, fewer service calls, longer service life, and fewer 2 a.m. emergency calls about leaks. The wrong one bleeds money for years. We've been doing commercial work in Central Texas long enough to know which system fits which building, and we'd rather earn a long relationship by getting it right than win a job by underbidding it.