Difference between revisions of "8.5 - Extended end laps"

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Where sheet length restrictions mean a double span sheet is not possible, it is possible to provide extended overlaps at the junction of two single span sheets (>10% of span either side of support) to create an effective double span; Refer to Fig. 8.5a.
  
  
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[[File:8.5a.jpg|400px|link=]]
  
Where sheet length restrictions mean a double span sheet is not possible, it is possible to provide extended overlaps at the junction of two single span sheets (> 8% of span either side of support) to create an effective double span; Refer to Fig. 8.5a.
 
  
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Although this is technically suitable as a detail, it is not recommended for practical reasons (ie. less economical, difficult to install, requires more detailed fixing configuration with additional fixings in webs of sheets) and should only be considered on roof deck
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profiles deeper than 100mm (SR 135 and above).
  
[[File:8.5a.jpg|400px]]
 
 
 
Although this is technically suitable as a detail, it is not recommended for practical reasons (ie. less economical, difficult to install, requires more detailed fixing configuration with additional fixings in webs of sheets).
 
  
  
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Other items within 8.0 - Design - Roof deck:-
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Go to '''[[8.6 - Raking supports and cutting|NEXT]]''' section
: [[8.0 - Design - Roof deck]]
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: [[8.1 - Quality]]
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: [[8.2 - Spans]]
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: [[8.3 - Loads]]
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: [[8.4 - Standard end laps]]
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: [[8.5 - Extended end laps]]
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: [[8.6 - Raking supports and cutting]]
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: [[8.7 - Cantilevers]]
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: [[8.8 - Sheet lengths]]
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: [[8.9 - Fire rating]]
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: [[8.10 - Durability]]
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: [[8.11 - Acoustics]]
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: [[8.12 - Airtightness]]
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: [[8.13 - Fixing specification]]
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: [[8.14 - Non-fragility]]
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: [[8.15 - Diaphragm design]]
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: [[8.16 - Protex® warranted insulated system]]
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: [[8.17 - Aesthetics]]
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Latest revision as of 13:46, 9 March 2022

Where sheet length restrictions mean a double span sheet is not possible, it is possible to provide extended overlaps at the junction of two single span sheets (>10% of span either side of support) to create an effective double span; Refer to Fig. 8.5a.


8.5a.jpg


Although this is technically suitable as a detail, it is not recommended for practical reasons (ie. less economical, difficult to install, requires more detailed fixing configuration with additional fixings in webs of sheets) and should only be considered on roof deck profiles deeper than 100mm (SR 135 and above).




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