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Roof access is one in a series of concerns for managers seeking to minimize foot traffic and potential damage.

Assessment Lays Groundwork for Successful Roof Replacement



Ensuring project success requires that managers address timing, materials, warranties and post-installation maintenance


By Sean Hinton  
OTHER PARTS OF THIS ARTICLEPt. 1: Roof Replacement Strategies and TacticsPt. 2: Roof Replacements: Understanding System OptionsPt. 3: Warranty and Installation Issues for Roof ReplacementsPt. 4: This Page


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.




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  posted on 6/25/2020   Article Use Policy




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