Is Roof Doctor NM Sika Sarnafil certified?

No — we've attended in-person Sika Sarnafil product-knowledge training (Denver, CO regional), but Sika Sarnafil 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 Sika Sarnafil install?

We check the finished roof against Sika Sarnafil's published install spec — nailing pattern, flashings, underlayment, accessories, and warranty registration paperwork. Sarnafil G410 PVC hot-air welding, cold-weather install spec

Should I hire a Sika Sarnafil-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 Sika Sarnafil warranty requirements.

Manufacturer notes

Sika Sarnafil

PVC single-ply — inspector's-eye notes on install spec, warranty requirements, and what typically gets skipped on NM installs.

Training attended

Sarnafil G410 PVC hot-air welding, cold-weather install spec

Denver, CO regional

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

What we check on a Sika Sarnafil 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 Sika Sarnafil on your roof

Are you a Sika Sarnafil-authorized installer? Can you register the manufacturer's system warranty on my roof?
Which Sika Sarnafil 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 Sika Sarnafil warranty on this bid cover material only, labor + material, or full system with workmanship?
What's your written policy if a Sika Sarnafil warranty claim is denied later because install spec wasn't met?