Specifications include, but are not limited to: In general the work consists ofreplacing the existing roofs of Buildings 2 and 4 at Central Wisconsin Center (CWC). The area of each roof is approximately 25,000 square feet. The existing roof of each building will be completely removed and replaced with a membrane roof system over new insulation. Roof drains will also be replaced. The existing sun porch roof at Building 4 will be re-constructed.