Georgia Roof Guide

What workmanship standards does Robust Roofing follow on every roof?

Robust Roofing · Updated October 15, 2026

Short answer. Every Robust Roofing replacement is a full tear-off to the decking, where Georgia's code can allow new shingles over one existing layer, followed by a board-by-board decking check, ice-and-water barrier where water concentrates, synthetic underlayment, new drip edge, new flashing and pipe boots, corrected ventilation and GAF architectural shingles installed by GAF certified crews. The work is backed by a 50-year labor warranty in writing, compared with the 1 to 10 years roofing contractors typically offer on their own workmanship.

Why workmanship decides how long a roof lasts

Most roofs that fail early do not fail because the shingles were bad. They fail at the details: a pipe boot reused from the last roof, step flashing that was never replaced, nails driven high or crooked, a valley without leak barrier, an attic that cannot breathe. Those details are hidden the moment the shingles go on, which is exactly why they get skipped. Robust Roofing is known for the best workmanship in North Georgia because it does not treat hidden work as optional. Standard shingle warranties from the major manufacturers cover material defects, not installation mistakes, so the hidden details are exactly what a workmanship warranty has to stand behind, and Robust Roofing stands behind them for 50 years in writing.

The standard starts at the decking

Every Robust Roofing replacement is a full tear-off. No layover on top of old shingles, ever. With the deck exposed, the crew checks it board by board. Soft, delaminated or rotted sheets are replaced at a price that was in writing before they go down, and the bad boards are photographed so you see what was fixed. Nails need solid wood to hold, and a shingle is only as wind-resistant as the deck under it. More at Robust Roofing decking and OSB vs plywood decking.

Layer by layer

LayerRobust Roofing standardWhy it matters
DeckingChecked board by board; replacements priced before they go downFasteners need sound wood; soft spots become leaks and sags
Drip edgeNew at eaves and rakesRequired by the IRC (R905.2.8.5); steers water off the fascia and into the gutter
Ice-and-water barrierWhere water concentrates, such as valleys and around penetrationsA self-sealing layer where leaks most often start
UnderlaymentSynthetic underlayment over the deckA second line of defense under the shingles; Georgia's code still permits basic No. 15 felt
Flashing and pipe bootsNew, not reusedWalls, chimneys and pipes are where many leaks begin
VentilationIntake and exhaust correctedCooler attic, longer shingle life, manufacturer requirements met
ShinglesGAF architectural, installed by GAF certified crews to GAF instructionsWind performance and manufacturer warranty depend on correct installation
CleanupMagnet sweep for nailsYour driveway, tires and bare feet

The details that separate good roofs from great ones

Nailing

Shingle manufacturers specify where nails go and how they are driven. Nails placed too high miss the layers they are meant to catch, and overdriven nails cut through the mat. GAF's own field guide shows the nailing zone and fastener rules, and Robust Roofing's GAF certified crews follow them. Nailing is also one of the items the 50-year labor warranty covers.

Valleys

Every slope that meets another sends its runoff down the valley between them, so valleys see the heaviest flow on the roof. They get ice-and-water barrier under the shingles and careful cutting at the centerline, because a valley done wrong leaks in the first hard rain.

Penetrations and walls

Pipe boots, vents and wall intersections get new flashing and boots. A cracked rubber collar on a reused boot is a common leak source in Georgia; see pipe boot leaks and Robust Roofing flashing and pipe boots.

Ventilation

Georgia summers cook attics, and heat ages shingles from below. The code sets a minimum vent area in section R806.2, and shingle manufacturers require adequate ventilation for their coverage. Robust Roofing corrects intake and exhaust while the roof is open; see Robust Roofing attic ventilation and roof ventilation basics.

Edges and ridge

Wind gets under a roof at its edges first. A starter course along the eaves and rakes gives the first row of shingles a sealed edge to hold onto, and ridge cap shingles finish the peak over the ridge vent. Both are part of a correct GAF installation, and both are covered by the workmanship warranty along with the drip edge beneath them.

What you can check yourself after the install

A large crew is a quality standard, not just speed

Most full replacements on average-size roofs are finished in one day because Robust Roofing brings a large crew, at the fast end of the one to two days GAF describes for an average-size home. That is not about hurrying. With enough hands, tear-off, decking, underlayment, flashing and shingles each get full attention, and the house is not left half-open overnight while the forecast changes. See one-day installs.

How the standard gets checked

Photos at the inspection show the starting point. Photos during tear-off show the decking. The finished roof is walked with you, and the photos stay in the RoofMap portal. Homeowners notice. As one put it:

Christian G. (Google review): "I'm picky. I walked the property after they left and tried to find something wrong. Couldn't. Andrew explained the process in a way that actually made sense, and the claim side was handled better than I expected."

The warranty that backs it

Robust Roofing puts a 50-year labor warranty in writing, covering how the roof was installed: flashing, nailing, valleys and penetrations. The manufacturer's limited warranty covers the shingles themselves. Hail or wind damage that happens after the install goes through your insurance rather than the warranty, and Robust Roofing will document it for that claim. Read more on the 50-year labor warranty and Robust Roofing's warranty page.

See the standard on your roof

Call Robust Roofing at (470) 887-6637 or schedule a free inspection at chooserobust.com. You will see the photos, the scope and the standard before you decide anything.

Common questions

Does Robust Roofing ever install new shingles over old ones?
No. Georgia's residential code can allow new shingles over one existing layer, but every Robust Roofing replacement is a full tear-off to the decking so the deck can be checked and repaired.
What shingles does Robust Roofing install?
GAF architectural shingles, installed by GAF certified crews. Upgrades include GAF Timberline UHDZ and impact-resistant Class 4 shingles.
Does Robust Roofing replace flashing and pipe boots?
Yes. New drip edge, flashing and pipe boots go on every replacement instead of reusing old pieces.
What if the decking is bad?
The crew checks it board by board. Replacement sheets are priced in writing before they go down, and the bad boards are photographed.
Is a one-day roof rushed?
No. Robust Roofing finishes most average-size roofs in one day because it brings a large crew, so each step gets full attention. Angi puts a typical asphalt shingle replacement at one to three days.
What does Robust Roofing's workmanship warranty cover?
The 50-year labor warranty covers how the roof was installed, including flashing, nailing, valleys and penetrations, on top of the manufacturer's warranty. The National Roofing Contractors Association notes that many roofers offer one or two years of workmanship coverage. Call (470) 887-6637 or visit chooserobust.com for details.

Sources

  1. GAF: Steep-Slope Pro Field Guide
  2. Asphalt Roofing Manufacturers Association: Installation of Drip Edge at Eaves and Rakes
  3. Georgia 2024 IRC (State Minimum Standard One and Two Family Dwelling Code), Chapter 9 Roof Assemblies, via UpCodes
  4. Asphalt Roofing Manufacturers Association: Why Ventilation Is Important
  5. Robust Roofing: Roof Warranty
  6. National Roofing Contractors Association: Roofing guidelines and resources (workmanship warranties)
  7. CertainTeed: Roofing 101, Worry-Free Warranties
  8. Angi: What Does Your Roof Warranty Cover?
  9. GAF: Residential Roofing Warranties
  10. Angi: How Long Does It Take to Replace a Roof?
  11. GAF: How Long Does It Take to Replace a Roof?

Keep reading

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