گروه پارسیان فن آور || سقف شیبدار || شینگل || تایل

برچسب : شینگل سقف

مشخصات فنی شینگل

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: ۰۳ ۳۱ ۰۰٫۰۰ ۱۰ (cast-in-place concrete), ۰۳ ۵۱ ۱۳ (pre-cast concrete), ۰۵ ۳۰ ۰۰ (steel), ۰۶ ۱۰ ۰۰ (wood)
Insulation: ۰۷ ۲۱ ۱۶ (blanket [attic]), ۰۷ ۲۱ ۲۳ (loose fill [attic]), ۰۷ ۲۲ ۰۰ (rigid)
Built-Up Roof: ۰۷ ۵۱ ۱۳
Modified bitumen: ۰۷ ۵۲ ۰۰
Protected Membrane Roof (using a variety of membrane types): ۰۷ ۵۵ ۰۰
Single-ply: ۰۷ ۵۳ ۲۳ (EPDM), ۰۷ ۵۴ ۱۹ (PVC)
Sprayed Polyurethane Foam: ۰۷ ۵۷ ۱۳
Metal Panels: ۰۷ ۴۱ ۱۳ (structural), ۰۷ ۶۱ ۱۴٫۰۰ ۲۰ (steel standing seam roofing), ۰۷ ۶۱ ۱۵٫۰۰ ۲۰ (aluminum standing seam roofing), ۰۷ ۴۱ ۱۳ ۱۶ (copper roof system)
Flashing and sheet metal: ۰۷ ۶۰ ۰۰ (flashing and sheet metal) and ۰۷ ۶۲ ۱۰ (copper flashing)
Asphalt Shingles: ۰۷ ۳۱ ۱۳
Slate: ۰۷ ۳۱ ۲۶
Tile: ۰۷ ۳۲ ۱۳ (clay and concrete)

عناصر کلیدی مشخصات شینگل

Figure 14. The wind load on this very wide gutter was transferred to the edge nailer, but the nailer attachment was not designed to account for the gutter uplift load. The nailer therefore lifted and caused a progressive peeling failure of the roof membrane.

After a suitable roof system has been selected, appropriate specifications and drawings need to be prepared to help ensure that the roof designer’s design concept is understood and executed by a professional roofing contractor. The fate of many prematurely failed roofs is often set by poorly prepared documents (Figure 14). The importance of the designer’s diligence in preparing specifications and drawings cannot be overemphasized.

The following elements are critical in communicating project requirements to the contractor:

  1. Specifications
  2. Roof Plan(s) and Details

توصیه های 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 the warranty section of NRCA’s Low-Slope Roofing Materials Guide (or the Steep-Slope Roofing Materials Guide). Ensure that the manufacturer’s standard language is not onerous BEFORE specifying that manufacturer. Make sure that the specified warranty includes:

  • Defects in materials and defects for the entire roofing system with all materials and accessories included.
  • Coverage up to the basic wind speed identified in the building code.
  • No Dollar Limit coverage without prorating.

For government projects, if a warranty is desired, recommend that a Government attorney identify provisions of the manufacturer’s standard warranty that are unacceptable, so that warranty provisions acceptable to the Government can be specified. The following are examples of changes to standard warranties that should be considered for all projects:

  • Delete warranty language that takes away the Owner’s rights
  • Delete warranty language that excludes other rights and remedies
  • Delete warranty language that sets a maximum dollar limit
  • Delete or modify the unfavorable items listed above in “Warranty Limitations.”