(303) 280-9595

Synthetic Underlayments:

DELTA Underlayments:
Advanced synthetic underlayments, such as Cosella Dorken’s DELTA line, can transform the roof from a passive barrier to an environmental system. These underlayments save energy by reflecting heat away from the roof and keeping excess moisture out of the house to prevent dangerous molds.

Cosella Dorken underlayments are designed to be easy to install, safer to walk on than old-style felt, extremely tear resistant, vapor permeable and tough enough to be left uncovered for months at a time. PetraSlate Tile & Stone currently sells DELTA ROOF, DELTA VENT S, DELTA FOXX, and DELTA TRELA underlayments.

Click here to go to the Cosella Dorken Delta web site.

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