Full GAF Timberline UHDZ Roofing System Replacement | Eleven-Unit NT Windows Replacement








Full GAF Timberline UHDZ Roofing System Replacement | Eleven-Unit NT Windows Replacement









This 78748 project centered on a full roof replacement using the GAF Timberline UHDZ system. We stripped the aging comp shingles, hauled them off, and rebuilt the deck with 7/16-inch OSB where needed. The system pairs GAF FeltBuster underlayment, StormGuard ice and water shield, and Z-Ridge caps for real hail and heat protection. Timberline UHDZ suits Austin roofs because its thick profile holds up under relentless summer sun and sudden storms.
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The home also received 11 new NT Windows units to seal up a dated envelope. We ordered the windows in mid-April and set them over multiple on-site days once they came in. NT Window builds locally for Texas heat, so the frames resist warping through 100-degree stretches. The new glass cuts solar gain and helps the home hold cooler air.
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The homeowner found Austin Pro through an internet search and reached out in early March 2026. The lead came in on March 6, starting a conversation about both a tired roof and aging windows on this 78748 home.
By March 9 the project moved to the prospect stage after our on-site look. We inspected the worn comp shingles, checked the decking condition, and reviewed the 11 windows the homeowner wanted replaced.
The homeowner approved the project on April 4, 2026. We finalized the GAF Timberline UHDZ roofing system and the NT Window selections, then placed the window order on April 13 to get the multi-week build started.
While waiting on the windows, we completed the full roof over multiple days in late April, including tear-off, new OSB decking, underlayment, and the GAF system. The 11 NT Windows arrived in mid-May and were installed over several on-site days, running May 25 into May 26.
On-site work finished May 26, 2026, with the invoice issued the same day. The home left with a complete GAF system roof, new ventilation and flashing, and 11 new windows, all backed by manufacturer warranty coverage.
We replaced the full roof and 11 windows on this South Austin home in the 78748 ZIP, swapping worn comp shingles for a GAF Timberline UHDZ system and dated glass for new NT Windows units. The home came out tighter, tougher, and ready for another Central Texas summer.
The existing comp shingles had run their course. Roofs in this part of Austin take a beating from hail, hard sun, and the swing between spring storms and dry 100-degree summers.
We planned a complete tear-off rather than a layover so we could inspect the deck underneath. That choice matters more than most homeowners realize.
We built the roof around the GAF Timberline UHDZ system, which uses a thicker mat than standard architectural shingles. That extra body helps it resist the cracking and granule loss that Austin heat and hail cause over time. The UltraMat construction gives it a stronger nail hold, so the roof stays put in high wind. We paired it with GAF FeltBuster synthetic underlayment for a dry, breathable layer, then added StormGuard ice and water shield in the vulnerable spots. Every piece works together as one warrantied system instead of a mix of random parts.
A roof only lasts if the attic can breathe and the penetrations stay sealed. We updated the vents and flashing so heat and moisture have a clear path out.
Proper ventilation keeps attic temps down during those long triple-digit stretches, which protects both the shingles and the ceiling below.
The home's old windows were leaking conditioned air and letting in too much summer heat. We ordered 11 new NT Windows units on April 13, since custom sizes take weeks to build. Rather than let the house wait, we ran the roof job during the gap. The windows arrived in mid-May, and we set them over multiple days, wrapping the whole project on May 26. NT Window builds its frames in Texas for Texas weather, so they hold their shape through the heat and seal tight against cedar pollen and dust.
The home now has a fresh GAF system roof and a full set of new windows working together. Heat gain drops, the envelope seals up, and the roof is built to shrug off the next hail season.
The roof went on over several days in late April while the windows were still being built. The 11 windows arrived in mid-May and were installed over multiple days, finishing on-site May 26, 2026.
Its thicker mat and stronger nail zone stand up better to hail and high wind. The heavier profile also resists the granule loss that hot Texas sun speeds along on thinner shingles.
This combined roofing and window job fell in the $25,000–$30,000 range. Final pricing depends on roof size, decking repairs, and the number and style of windows.
Yes. Building a full GAF system with matched underlayment, starter, and ridge components qualifies the roof for stronger manufacturer warranty coverage than mixing brands would allow.





