Houston's subtropical climate brings sudden hail and high winds that crack standard shingles on older homes in the Heights and Midtown. Class 4 shingles like CertainTeed Landmark PRO or GAF Timberline HDZ carry the UL 2218 rating and resist cracking at the 2-inch hail test. Many 20-year-old roofs here fail because the original three-tab shingles were never rated for impact and the felt underlayment has dried out from repeated summer heat.
Harris County requires a permit for any roof replacement over 100 squares and inspectors check for proper nailing patterns and drip edge on every job. Cheap crews often skip the self-adhered underlayment at the eaves, which leaves the first three feet of decking exposed when wind-driven rain hits during a mild winter front. We pull permits and schedule the final inspection the same week the last shingle goes down.
A common failure point in Downtown and Montrose bungalows is the transition where the porch roof meets the main deck. Water gets behind the step flashing when the original metal was bent by hand instead of using pre-formed pieces. Class 4 systems use 26-gauge pre-finished step flashing sealed with butyl tape so the joint stays watertight even after the next 60 mph gust.
Space Center Houston and the Museum of Fine Arts area see the same summer humidity that rots OSB decking when vents are blocked. We cut in new ridge vents rated at 1,200 linear feet per 1,000 sq ft of attic space so moist air escapes before it softens the plywood under the new Class 4 shingles.
Class 4 Impact Resistant Roofing Services We Offer
✓Class 4 Shingle Replacement
Full tear-off and install of UL 2218 Class 4 shingles with ice-and-water shield at all valleys on homes in the Heights.
✓Hail Damage Roof Assessment
On-site inspection that documents granule loss and cracked tabs so homeowners can file with insurance after a Houston storm.
✓Emergency Storm Tarp Service
Same-day blue tarp and batten install over leaks in Montrose or River Oaks when a roof starts taking on water after hail.
✓Commercial Class 4 Roofing Upgrade
Impact-rated modified bitumen or TPO overlay on small retail buildings in Midtown that need to meet current Harris wind codes.
✓Class 4 Ridge Vent Installation
Cut-in and seal of high-airflow ridge vent while the Class 4 shingles are being laid to reduce attic heat and moisture.
Class 4 Impact Resistant Roofing Cost in Houston, TX
| Service | Typical Range | What Affects It |
|---|---|---|
| Class 4 Roof Replacement 1,500-2,000 sq ft | $9,000–$14,000 | Includes tear-off, underlayment, and permit; higher for steep pitch or two-story access. |
| Hail Damage Assessment | $150–$250 | Credited toward repair if work is approved. |
| Emergency Tarp Install | $450–$750 | Covers one section up to 400 sq ft; removed at start of permanent repair. |
| Ridge Vent Addition During Re-Roof | $600–$1,100 | Price varies by linear feet and whether old vent must be cut out. |
| Free Estimate | Free | Call Mon–Fri 8am–6pm or Sat 9am–2pm at 11767 Katy Fwy. |
Ranges are typical for Houston, TX and confirmed with an exact written quote before any work starts.
How it works
- 1
Site Inspection and Measurement
We walk the roof with a drone and tape measure, note every damaged spot, and give a written scope the same day. Takes 45 minutes.
- 2
Permit Pull and Material Order
We file the Harris County permit and order the Class 4 shingles plus matching underlayment. Lead time is usually three business days.
- 3
Tear-Off and Deck Repair
Old shingles and felt come off, bad decking gets replaced, and ice-and-water shield goes down at eaves and valleys. One day for most homes.
- 4
Class 4 Shingle Install
New shingles are nailed in the pattern required for the Class 4 rating, ridge vent is added, and all flashings are sealed. Two days typical.
- 5
Final Walk and Cleanup
We do a magnet sweep, show the homeowner the work, and schedule the county inspection. Job complete in under a week.
Pricing
Prices move with square footage, roof pitch, and whether decking needs replacement.