Mineral-Surfaced Cap Sheet

Why GAFGLAS® Mineral Surfaced Cap Sheet?

The glass base resists the effects of moisture on the roof system while the aesthetically attractive granule surface provides an ultra-violet protective surface and requires no additional surface coatings. UL Class A, B, or C membrane constructions are available and system guarantees are available for up to 20 years.


GAFGLAS® Mineral Surfaced Cap Sheet is used as the surfacing ply in the application of hot applied built-up roofs and as a top ply in base flashing construction.


Available Sizes

Note:  Product sizes, dimensions, and widths are nominal values and are subject to normal manufacturing/packaging tolerance and variation.

Product Properties

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