Commercial Roof Repair and Replacement in New Braunfels
Flat and low-slope roofs hold up well when they drain and when small issues are fixed quickly. Repeated hail seasons make both harder.
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How a commercial project runs
Survey the roof
We walk the roof, check the membrane, seams, drains, edges and rooftop units, and photograph what we find.
Look below the surface
Wet insulation hides under a membrane that looks fine. Interior stains and soft spots point to where water travels.
Free written estimate
The scope separates urgent repairs from items that can be planned.
Schedule around the business
Work is planned to keep the building running. Read reduce business disruption during roof repairs.
Keep it maintained
A short checklist of seasonal checks keeps the roof in shape.
Hail and commercial roofs in New Braunfels
NOAA's Storm Prediction Center logged 44 hail reports within 10 miles of New Braunfels from 2015 through 2024. Eight were 1.75 inches or larger, spread across 2015, 2019, 2021, 2022 and 2023. The largest was 2 inches, on March 23, 2021.
Flat roofs take hail head on. Impacts can crack or puncture membranes, crush the insulation underneath and dent metal edges, vents and HVAC housings. Since water drains slowly on a low slope, even a small opening can let a lot of water reach the deck. With large hail in 5 of 10 years, a yearly survey is reasonable for most buildings.
Roof types on commercial buildings
TPO and EPDM
Single-ply membranes common on low-slope roofs. See TPO vs. EPDM roofing.
Modified bitumen and built-up
Layered systems found on many older buildings.
Metal panels
Popular on shops and warehouses, with fasteners and seams that need regular checks.
Sloped sections
Shingle, tile or metal over offices, entries and storefronts.
Coatings
Some owners consider a roof coating to extend a membrane that is still in fair shape. It is not a fix for wet insulation.
Two counties, many storms
New Braunfels spans Comal and Guadalupe counties (U.S. Census Bureau), and owners with more than one building in the area know that storms rarely hit every property the same way. One roof can take heavy hail while another a few miles away sees only rain. Checking each building after a storm, rather than assuming, avoids missing damage.
Keep a simple log for each roof: the date of each inspection, what was found, what was repaired and any storms in between. When a leak appears, that log points to the likely cause faster. It also helps when deciding where to spend a maintenance budget first, and which roof is closest to replacement.
Problems to catch early
Standing water days after a rain.
Open or lifted seams, especially at corners and edges.
Cracked flashing around rooftop units and pipes.
Blocked drains and gutters. Read about flat roof drainage systems.
Ceiling tile stains or musty smells inside.
Planning a replacement
When leaks keep returning and the insulation below is wet in large areas, repairs stop paying off. Our article on signs a commercial roof needs replacement covers the main warning signs. A commercial roof maintenance plan helps delay that point on roofs still in fair shape.
GemSco is family owned, fully licensed and insured, with 20+ years of residential and commercial roofing. Learn more on our commercial roofing service page or the New Braunfels roofing page.
Frequently Asked Questions
How often should a commercial roof be inspected?
Twice a year is a common rule, usually in spring and fall, plus a check after any storm with hail or high wind. Given that large hail reached the New Braunfels area in 5 of the 10 years from 2015 through 2024, post-storm checks matter as much as the routine ones.
Can a damaged membrane be repaired instead of replaced?
Often, yes. Punctures, open seams and small areas of damage can be patched if the insulation below is dry. If moisture has spread widely under the membrane, a repair on top will not fix the problem, and a larger section or full replacement may be needed.
What causes most commercial roof leaks?
Most start at seams, flashing and penetrations such as pipes, drains and rooftop units. These are the places where the membrane is cut, joined or bent. Clogged drains that cause ponding make every weak spot worse, so keeping drainage clear is one of the simplest fixes.
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GemSco Roofing & Solar serves Houston, DFW, Austin, San Antonio and surrounding areas. We’re family owned and fully licensed and insured.