All Weather/Empire™ Base

CertainTeed''''s All Weather/Empire Base Sheet is a heavyweight, SBS modified bitumen, fiber glass sheet designed for use as a base sheet for both hot and cold applied, built-up roofing systems. It is suitable for use in the construction of various types of membranes for both new construction and reroofing, over a variety of substrates. All Weather/Empire will provide additional strength, moisture resistance and asphalt uniformity when used as the first ply over nailable, non-nailable and insulated substrates. In addition, it will perform as a venting base sheet when spot mopped over plastic foam-type insulations. It is acceptable for use with both organic and inorganic roof membranes whenever a heavy duty base sheet is desired.

The following information represents typical average properties of All Weather/Empire Base Sheet:

• Support Mat: Fiber glass base mat
• Surfacing: Mineral release agent
• Approximate Product Weight: 70 lbs. per roll
• Dimensions:  39-3/8" x 65'' 10" (216 square feet)
• Coverage: Two Squares
• Thickness: 1.3mm (50 mils)

For additional technical resources please refer to the CertainTeed Commercial Roof Systems Manual or click on the Technical Information link located on the left navigation area.

Roof systems constructed with All Weather/Empire Base Sheet as the base ply shall be applied in accordance with installation procedures contained in the CertainTeed Commercial Roof Systems Manual.

For detailed installation instructions please refer to the CertainTeed Commercial Roof Systems Manual or click on the Installation Instructions link located on the left navigation area.

Outstanding Warranty Options

CertainTeed backs its commercial roofing systems with the confidence of three warranty choices:

Limited Product Warranty
NDL Roof Membrane Limited Warranty*
Integrity Coverage Warranty*

Owners and specifiers who choose the NDL or Integrity Coverage warranty options have the added security of manufacturer involvement in the sometimes difficult process of contractor qualifying and workmanship inspection. Consult with the roofing contractor and your CertainTeed commercial roofing territory manager to decide which CertainTeed warranty is best for your building or project.

*NDL and Integrity Coverage (IC) warranties are not available on all specifications and are only available through CertainTeed Golden and Silver Star Contractors. (IC is only available through CertainTeed Golden Star Contractors.)