Manufacturer notes
GAF Commercial (EverGuard)
TPO low-slope — inspector's-eye notes on install spec, warranty requirements, and what typically gets skipped on NM installs.
Training attended
EverGuard TPO welding, detail work, guaranteed system spec
Albuquerque, NM
Owner-attested attendance. GAF Commercial (EverGuard) does not typically issue individual certificates for product-knowledge sessions. Listed as training attended, never as certification.
What we check on a GAF Commercial (EverGuard) install
- Membrane thickness (mil) — 60-mil is the honest minimum for NM UV exposure.
- Seam quality — heat-welded seams should be probed at completion, not just eyeballed.
- Insulation R-value and taper — ponding water voids most single-ply warranties.
- Termination bar and coping cap detail at parapets — where wind gets under the field.
- Fully-adhered vs mechanically-attached — matters for wind ratings and puncture risk.
Questions to ask any contractor bidding GAF Commercial (EverGuard) on your roof
- Are you a GAF Commercial (EverGuard)-authorized installer? Can you register the manufacturer's system warranty on my roof?
- Which GAF Commercial (EverGuard) 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 Commercial (EverGuard) warranty on this bid cover material only, labor + material, or full system with workmanship?
- What's your written policy if a GAF Commercial (EverGuard) warranty claim is denied later because install spec wasn't met?
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