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sheathing

  1. S

    foamed plastic sheathing vs foamed plastic outboard

    This is from Ontario building code SB-3 ----------------------------------------------------------------------------------------------------------------------------------------- Table 1 (Cont’d) Fire and Sound Resistance of Walls(1) EW1a EW1 with 15.9 mm Type X gypsum board(7)(11) exterior...
    • sunyaer
    • Thread
    • exterior wall foamed plastic outboard foamed plastic sheathing sheathing
    • Replies: 3
    • Forum: Canada
  2. A

    APA Span tables remarks

    They are engineered I get it, but APA span tables for sheathing - 7/16 live load of 40 psf vs 15/32 is 70 psf. pretty much 1/32" gets you 30 more psf? Seems a bit crazy to get 75% more load out of 1/32." Its engineered but I find that hard to believe. I am returning my 7/16 osb because I...
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