This contract is for the removal of the existing Duro-Last roofing system. The Contractor shall supply and install a new, complete membrane roofing system, providing all necessary components and mater... This contract is for the removal of the existing Duro-Last roofing system. The Contractor shall supply and install a new, complete membrane roofing system, providing all necessary components and materials to ensure a watertight, warranted system. The new roofing system to be warranted (20-year minimum), installed with quality craftsmanship, and free of leaks at the time of acceptance by the Government.

This contract is for the removal of the existing Duro-Last roofing system. The Contractor shall supply and install a new, complete membrane roofing system, providing all necessary components and mater... This contract is for the removal of the existing Duro-Last roofing system. The Contractor shall supply and install a new, complete membrane roofing system, providing all necessary components and materials to ensure a watertight, warranted system. The new roofing system to be warranted (20-year minimum), installed with quality craftsmanship, and free of leaks at the time of acceptance by the Government.