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K.2
K.2.2.2 Require a 20 year, no-dollar-limit warranty
Continued
K.2.2.3 Provide generic NRCA details to help define the quality of
the roof.
K.2.3 EPDM
K.2.3.1 Specify a minimum 60-mil thickness
K.2.3.2 Must be fully adhered, rather than ballasted or mechanically
attached
K.2.3.3 Do not use over kitchens
K.2.3.4 Should include a coating to save energy
K.2.3.5 Require Factory Mutual certification for the system
K.2.3.6 Provide generic NRCA details to help define the quality of
the roof.
K.2.4 Requirements for all systems
K.2.4.1 Contractor qualifications: five years minimum in the roofing
business, and must be a member of professional roofing association
(SMACNA and/or NRCA) for a minimum of 3 years
K.2.4.2 Required pre-installation activities
K.2.4.2.1 Must have a pre-roofing-construction meeting with
the designer, supplier, manufacturer and contractor after award
of the construction contract
K.2.4.2.2 Must have a pre-installation meeting 2 weeks before
starting installation
K.2.4.3 Required quality control measures
K.2.4.3.1 Manufacturer's representative must be on site during
installation (all week the first week, at least once a week after
that, minimum based on AE's recommendation)
K.2.4.3.2 Manufacturer's representative must be an employee
of the manufacturer with a minimum of 5 years experience with
the type of system being installed or an employee of an
independent installer certified by the manufacturer
UFC 4-171-05
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