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Commercial Roofing for Murphy Buildings in Hail Country

A flat roof in an active hail zone needs a plan, not just a phone number to call when it leaks.

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Hail and low-slope roofs near Murphy

NOAA's Storm Prediction Center logged 131 hail reports within 10 miles of Murphy from 2015 through 2024, and 49 were 1.75 inches or larger. Large hail fell in 7 of the 10 years, and the biggest report was 5.25 inches on April 11, 2016.

On a low-slope roof, that kind of hail can bruise or puncture the membrane and crush the insulation board below. Damage is often invisible from the ground. Water then spreads under the membrane and appears far from where it entered. For a building in Collin County, a post-storm roof walk should be routine, not optional.

Timing also matters for a business. A roof that leaks during a busy week costs more than the repair itself: damaged stock, closed rooms and unhappy tenants. Owners who budget for regular inspections usually spend less over the life of the roof than those who only call when water hits the floor.

A post-storm checklist for property managers

Walk the roof or have it walked within days of a hail event.

Photograph dents on rooftop units, vents and metal flashing.

Check membrane seams and the area around drains.

Press-test insulation for soft or crushed spots.

Clear drains and scuppers so water does not pond on damaged areas.

Log everything with dates for your records and your insurer.

Common membrane types

TPO

A single-ply membrane with welded seams. Widely used on commercial buildings.

EPDM

A rubber membrane with a long track record. Our article on TPO vs. EPDM roofing compares the two.

Modified bitumen

Layered asphalt-based sheets, often used on smaller commercial roofs.

Metal

Used on many low-slope buildings. Dents from hail may be cosmetic or may affect seams and fasteners.

How a commercial project moves

1

Survey the roof

Full walk, photos and a look at drainage, seams, flashing and rooftop units.

2

Find the wet areas

Wet insulation decides whether repair is enough or replacement makes more sense.

3

Plan around the business

Work is scheduled to limit disruption. See how to reduce business disruption during roof repairs.

4

Do the work and document it

Photos before, during and after give you a record for future claims and maintenance.

Repair, restore or replace

Not every hail-damaged commercial roof needs a full tear-off. If damage is limited and the insulation is dry, targeted repairs to seams, punctures and flashing can extend the roof's life. Some owners also look at coatings or a recover over a sound roof; these are general market options whose fit depends on the existing system and local code.

When wet insulation covers large areas or the membrane is worn across the roof, replacement is often the more reliable choice. A survey with photos and moisture checks gives you the facts to decide.

Keep the roof on a schedule

A maintenance plan catches small problems before they turn into interior damage and lost business days. Our guide to a commercial roof maintenance plan covers what to include. GemSco handles residential and commercial roofing, including low-slope and flat roofs, and is fully licensed and insured. Learn more about our commercial roofing service or our work in Murphy.

Frequently Asked Questions

How do I know if hail damaged my building's flat roof?

Dents in metal rooftop units and flashing are the easiest clue. On the membrane, look for bruises, cracks or punctures, and soft spots underfoot where insulation was crushed. Because the damage is often subtle, a close inspection with photos is the reliable way to know.

When should a commercial roof be replaced instead of repaired?

When large areas of insulation are wet, seams are failing across the roof, or leaks keep returning after repairs. Our article on signs a commercial roof needs replacement lists more warning signs to watch for.

Does a flat roof need special drainage?

Yes. Flat roofs rely on drains, scuppers and gutters to move water off. Clogged or undersized drainage leads to ponding, which shortens roof life. Our guide to flat roof drainage systems explains the main options and their upkeep.

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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.

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