INSTALLATION SUPPLIES
Cornerstone Metal Products sells fasteners, pop rivets and synthetic underlayment.
INSTALLATION SUPPLIES
Cornerstone Metal Products sells fasteners, pop rivets and synthetic underlayment.


Fasteners
Our Fasteners are designed specifically to attach metal roof and sidewall panels used in pre-engineered metal building applications. All fasteners come standard with an enhanced corrosion resistant coating. 36 standard colors are available.

Pop Rivets
Our open-ended rivets are designed to attach 2 thin pieces of metal for a low-profile appearance. Applications include metal roofing ridge-caps, roof gutters and downspouts.

Synthetic Underlayment
Our synthetic underlayment is a highly engineered coated woven synthetic material that offers a reliable secondary layer of protection under all types of primary sloped roofing material. Unlike felt, its recyclable polyolefin construction doesn’t expand or contract and is inert to mold and mildew growth. It is 100% synthetic and is unaffected by water. It is engineered to lay flat and will not buckle or wrinkle when exposed to temperature and moisture fluctuations on the roof. Unlike oil saturated felts, our synthetic underlayment does not dry out, leach oils in the heat, nor does it become stiff, difficult to roll or crack in the cold.
