As of June 1st 2026, Premium Supply LLC is now a distributor of MASTIC soffit products. As many of you know VARIFORM and MASTIC are sister companies, under the Cornerstone BP umbrella. For several years, dark and premium colors like Twilight Shadow, Teak, and Sedona Red siding and accessories have been available to VARIFORM distributors, but soffit has not. This is no longer the case. Premium Supply has negotiated with Cornerstone BP to become one of the very few distributors in the country of BOTH Variform and Mastic products. We are pleased to be able to expand our product offering, and we will continue to look for more and better options for our valued clientele.
Great News
