Is Roof Doctor NM GAF certified?

No — we've attended in-person GAF product-knowledge training (Albuquerque, NM), but GAF generally does not issue individual "certified" credentials for product training. We list this as training attended, never as certification. That distinction matters and we keep it strict.

What do you look for on a GAF install?

We check the finished roof against GAF's published install spec — nailing pattern, flashings, underlayment, accessories, and warranty registration paperwork. Timberline HDZ install spec, LayerLock, StainGuard Plus, Golden Pledge warranty requirements

Should I hire a GAF-authorized contractor?

For system warranty coverage (like GAF Golden Pledge or Owens Corning Platinum), yes — only manufacturer-authorized installers can register those warranties. For the roof itself, install quality matters more than the badge. We'll tell you honestly whether the bid you have satisfies the GAF warranty requirements.

Manufacturer notes

GAF

Asphalt shingle systems — inspector's-eye notes on install spec, warranty requirements, and what typically gets skipped on NM installs.

Training attended

Timberline HDZ install spec, LayerLock, StainGuard Plus, Golden Pledge warranty requirements

Albuquerque, NM

Owner-attested attendance. GAF does not typically issue individual certificates for product-knowledge sessions. Listed as training attended, never as certification.

What we check on a GAF install

Nailing pattern — 4 vs 6 nails per shingle changes the wind warranty entirely.
Starter strip at eaves and rakes — missing starter = wind lift within 2 storms.
Ice & water shield in valleys and around all penetrations, not just eaves.
Ridge cap must be manufacturer-matched hip/ridge, not cut-up field shingles.
Balanced attic ventilation — required for the shingle warranty to stay valid.

Questions to ask any contractor bidding GAF on your roof

Are you a GAF-authorized installer? Can you register the manufacturer's system warranty on my roof?
Which GAF product line are you installing? What's the exact spec — nailing pattern, underlayment, accessories?
Will you supply photos of critical details (valleys, penetrations, flashings) before dry-in and after tear-off?
Does the GAF warranty on this bid cover material only, labor + material, or full system with workmanship?
What's your written policy if a GAF warranty claim is denied later because install spec wasn't met?