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6. INSTALLATION:
6.1 TRI-BUILT Roof Underlayments shall be installed in accordance with TRI-BUILT Materials Group, LLC
published installation requirements subject to the Limitations set forth in Section 5 herein and the
specifics noted below.
6.2 Re -fasten any loose decking panels, and check for protruding nail heads. Sweep the substrate thoroughly
to remove any.dust and debris prior to application, and prime the substrate (if applicable).
6.3 Tri-Built Sand-R SA Shingle Underlavment, Tri-,Built S/A HT TU Underlavment or Tri-Built Smooth HT S/A
Underlavment:
6.3.1 Shall be installed in compliance with the requirements for ASTM D1970 underlayment in FBC Table
1507.1.1 for the type of prepared roof covering to be installed.
6.3.2 Non -Tile applications:
While priming is optional, TRI-BUILT Materials Group, LLC recommends priming the deck if the final roof
cover is not slated for installation within 24 ho l rs.
Apply sheet parallel to the roof edge. Roll out approximately 10 ft of membrane and peel back the first 3
ft of release film.
Adhere the exposed part to the substrate and unroll the remaining membrane as far as possible.
Once the entire length of membrane is in place, peel -off the release film diagonally while holding the
membrane tight. Firmly roll, broom or hand -press the membrane into place to achieve a bond.
Horizontal seams should be minimum 3-inches, configured to shed water. Vertical seams should be 6-
inches and staggered not less than 2-ft from vertical seams in the course below, sealed in accordance with
TRI-BUILT Materials Group, LLC requirements.)
When installing at slopes above 8:12, TRI-BUILT Materials Group, LLC recommends back -nailing in the
overlap area at the top of the sheet at 12-inchio.c.
For Valleys and Ridges: Cut underlayment into 4 to 6 foot lengths. Peel the release paper and center sheet
over valley or ridge. Drape and press sheet into place, working from the center of the valley or ridge in
each direction. For valleys, apply the sheet starting at the lowest point and work upward.
6.3.3 Tile Applications (Tri-Built S/A HT TU Underlavment onlv):
Reference is made to FRSA/TRI April 2012 (04-12) Installation Manual and Table 1 herein, using the
instructions noted above as a guideline.
For foam -on tile applications, reference is ma:to to Section 5.6.4 herein for wind resistance limitations that
fall outside the scope of FRSA/TRI April 2012104-12).
Tile shall be loaded and staged in a manner that prevents tile slippage and/or damage to the
underlayment. See Table 2 herein, and TRI BUILT Materials Group, LLC published requirements for tile
staging.
7. BUILDING PERMIT REQUIREMENTS:
As required by the Building Official or Authority Having Jurisdiction in order to properly evaluate the installation of
this product.
8. MANUFACTURING PLANTS:
Gulfport, MS
9. QUALITY ASSURANCE ENTITY:
UL, LLC —QUA9625; (314) 578-3406; k.chancellor@us.ul.com
- END OF EVALUATION REPORT -
Exterior Research and Design, I.I.C.
Certificate of Authorization ><9503
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CH EDITION (2017) FBC NON-HVHZ EVALUATION
TRI-BUILT Roof Underlay,ments; (800) 516-1485
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Evaluation Report A42960.10.12-116
FL16048-R6
Revision 6: 09/25/2017
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