Difference between revisions of "Deck and Wall Overlays"

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Difference between revisions of "Deck and Wall Overlays"

(General)
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<div class="principles">A roof system underlay is installed under the roof system and over the roof deck assembly. Underlays are most commonly placed over steel decks to provide a level surface for the membrane, or as a thermal barrier between the roof deck and combustible insulation.</div>
 
<div class="principles">A roof system underlay is installed under the roof system and over the roof deck assembly. Underlays are most commonly placed over steel decks to provide a level surface for the membrane, or as a thermal barrier between the roof deck and combustible insulation.</div>
  
=== Underlays for Metal Roofing ===
 
 
Acceptable membrane underlays for metal roofing are listed in Section 8.2 and in Section 2.2 (accepted Materials list) of this manual.
 
  
  

Revision as of 16:15, 20 June 2016

General

NOTE: See also Accepted Roof Deck Overlay Board products

For RoofStar Guarantee Standards pertaining to Deck Overlay Boards, refer to subsection 3 (SUBSTRATES - DECK OVERLAY BOARD and WALL SHEATHING) in either Low Slope Roof Systems or for Architectural Sheet Metal Roof Systems.


A roof system underlay is installed under the roof system and over the roof deck assembly. Underlays are most commonly placed over steel decks to provide a level surface for the membrane, or as a thermal barrier between the roof deck and combustible insulation.



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