Assessment Lays Groundwork for Successful Roof Replacement
Ensuring project success requires that managers address timing, materials, warranties and post-installation maintenance
Well before a roof-replacement project can begin, maintenance and engineering managers need to lay the groundwork by conducting a series of processes that are designed to produce a successful project that delivers long-term benefits to the facility and the organization. These processes include the following:
Conduct a preliminary assessment:
• Core the existing roof system to evaluate the roof assembly and overall system height.
• Evaluate HVAC, plumbing and wall heights for possible conflicts with industry standard detailing.
• Identify areas of ponding water on the existing roof system.
• Note active tenant concerns.
• Assess the type of roof drains, the size of drain bowls, and provisions for code-required drainage, and perform proper flow testing.
Compile project specifications:
• overall site plan
• as-built drawings of the roof and drain locations, to scale if possible
• roof plan with walk path layout and applicable design details
• type of roof deck
• provision for overflow drains
• insulation requirement per local code, including tapered insulation and crickets for positive drainage
• type of high-density coverboards
• type of roofing membrane
• length of the warranty term and any required enhancements.
Conduct a pre-bid meeting:
• Discuss work hours, building access and other site regulations or concerns.
• Identify the laydown area for materials and the area for crane staging.
• Determine whether overhead protection is required.
Perform a proposal review:
• Quantify the proposals and identify red flags.
• Request a letter from the manufacturer supporting the contractor, a manufacturer’s letter of intent to warrant the project, and the manufacturer’s sample warranty.
• Ask for the contractor’s certificate of insurance and references for similar projects.
• Conduct interviews with contractors under consideration to discuss their proposals, approach, manufacturer’s involvement and warranty.