Full GAF Timberline HDZ SG Shingle Roof Replacement | Single-Day Two-Story Tear-Off With Deck Repair








Full GAF Timberline HDZ SG Shingle Roof Replacement | Single-Day Two-Story Tear-Off With Deck Repair









This Elgin shingle roofing project used GAF Timberline HDZ SG architectural shingles over a fully rebuilt deck. We stripped the old comp shingles, hauled them off, and replaced damaged OSB sheathing before laying new underlayment. GAF was chosen for its strong hail rating and heat performance in Elgin's 100-degree summers. The finished roof went on in a single day and is sealed against wind-driven rain.
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The homeowner reached out to us on March 26, 2026. They were a previous Austin Pro customer, so the conversation started with real trust already in place. They flagged that their aging asphalt roof was showing wear and asked us to take a look.
We inspected the two-story roof and confirmed the old comp shingles had lost granules and were near failure. Our assessment also noted the steep slope and likely deck issues once the old layer came off. That let us plan for tear-off, disposal, and possible OSB replacement from the start.
We built a retail estimate around a full GAF Timberline HDZ SG system, including underlayment, starter strip, and ice and water shield. The homeowner approved the scope on April 3, 2026. Material ordering and crew scheduling followed right away.
The crew completed the entire job on April 9, 2026. They stripped the old shingles, hauled them off, and replaced failing 7/16" OSB decking. New FeltBuster underlayment, drip edge, flashing, and Timberline HDZ shingles went down over a properly prepped deck.
We finished with a full site cleanup and touched up accessories with TopShield roof accessory paint the same day. The project was invoiced on April 16, 2026, and formally closed on April 30, 2026. The home is now covered by a complete GAF system built for Elgin's heat and hail.
We replaced a tired asphalt roof on a two-story home in Elgin, TX, with a full GAF Timberline HDZ system in a single day. The old shingles came off, the deck got repaired, and a fresh, sealed roof went down before the crew left.
The existing comp shingles had reached the end of their life. Years of Central Texas hail and relentless summer sun had worn the granules thin and left the surface brittle.
This homeowner had worked with us before, so they called us the moment the roof started showing its age. That trust made the whole job move fast.
Once the old shingles came off, we got our first clear look at the deck. That is where roofs hide their real problems. In Elgin, the swing between 100-degree summer days and damp winter nights slowly works moisture into any soft spot in the sheathing. We found sections of decking that had gone spongy and needed to go. Rather than shingle over weak wood and hope for the best, we cut those areas out and installed new 7/16" x 4' x 8' OSB. Skipping that step is the single biggest mistake we see on cheap re-roofs, because no shingle holds well on a rotten base.
We built the roof as a complete GAF system, not a pile of mixed parts. Timberline HDZ SG shingles sit at the core, chosen for their heat resistance and strong wind rating. Every layer under them was picked to work together.
The GAF FeltBuster Synthetic Underlayment covers the field, while StormGuard Ice & Water Shield protects the vulnerable spots. We used two squares of StormGuard where leaks start most: valleys and penetrations. That matters in Elgin, where sideways rain during spring storms finds any weak seam.
Our crew handled tear-off, deck repair, and full install in a single day on April 9. A steep, two-story roof adds real complexity, so we planned for the extra access and fall protection up front.
The home now wears a clean, uniform roof rated to shrug off hail and hold up under summer heat. Exposed metal and accessory pieces were touched up with TopShield roof accessory paint for a finished look.
This two-story tear-off and replacement was done in one day, from stripping the old shingles to final cleanup. Most single-family homes fall in that one to two day range, weather permitting.
The HDZ line pairs a strong wind seal with granules built to take hail and constant sun. Those are the two things that end most roofs in the Elgin area, so the shingle is matched to the climate.
This retail project landed in the $5,000 to $10,000 range. The final number depends on roof size, slope, and how much decking needs replacing once the old shingles come off.
Yes. We check every board after tear-off and swap out any soft or rotted OSB before new material goes down. On this home that meant fresh 7/16" sheathing in the affected spots, which is the only way a new roof performs as promised.





