To produce good specifications, the roof designer should first acquire a suitable guide specification.
MasterSpec® is a reliable source of master specifications, which must be edited by experienced specification writers.
Also, the following Unified Facilities Guide Specifications (UFGS) are available:
Roof decks: ادامه مطلب مقاله مشخصات فنی شینگل
Do not make a roof system or manufacturer selection on the basis of a warranty. Select a system for its suitability to the project, as discussed in System Selection Criteria above.
Do not automatically specify a warranty. Rather, select a system for its suitability for the project, as discussed in System Selection Criteria and Specific Roof System Selection above, and then determine if the Owner's best interests are served by a warranty.
If specification of a warranty is being considered, review th
A warranty may have some merit if it means that the manufacturer will take steps to minimize the potential for future problems (such as reviewing the specifications and details and providing meaningful inspection during application). A warranty may also enhance the likelihood that a professional contractor will install a roof. However, rather than relying on a warranty to obtain a qualified contractor, designers should specify contractor qualification requirements as discussed in the next section.
