PVC roofs

PVC roofs for what blows onto them

PVC is a single-ply membrane made to stand up to grease, oils and many chemicals. We use it where exhaust fans vent onto the roof.

Under kitchen exhaust
Restaurants, cafeterias and food plants put grease on the roof every day.
Labs and process vents
Roofs near chemical exhaust need a membrane picked for the exposure.
Welded seams and flashings
Hot-air welds at every seam, with prefabricated corners and boots where they fit.
Checked against the vents
We list what vents onto the roof before we name a membrane.

What we ask first

Four questions that decide the membrane

01
What vents onto the roof?
Kitchen hoods, lab exhaust, process fans and make-up air all shorten the life of the wrong membrane.
02
How often is the roof walked?
Service techs and equipment crews wear a walkway path into any roof.
03
What is under the old roof?
Core samples show the insulation and deck. A wet layer is removed, not covered.
04
What does the budget need to include?
The membrane is one line. Flashings, drains and curbs often decide the total.

Usually, yes, which is why we use it where its resistance to grease and chemicals is needed. Where it isn't, we say so.

Only over a dry, sound roof, and the old membrane has to be compatible. We check both before we bid.

Manufacturers usually ask for documented maintenance and no unapproved roof work. Our survey reports are that record.

A list of fans and hoods, and a site visit, is where a PVC bid starts.