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exterior wall

  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. Harrison Staab

    Continuity of Exterior Bearing Wall Fire Rating at Building Stepback

    Where a building steps back, does the supporting walls/structure need to maintain the same fire rating of the exterior bearing wall above? Specific application: California Building Code 2019 (sim. to IBC 2018) Six stories, 5 IIIA over 1 IA Group R-2 Multi-family apartment Type IIIA construction...
  3. C

    Firestop Required Within Unrated Exterior Wall Assembly

    I have a multi-story, Type I-B building. The concrete on metal deck floor is rated, but the exterior wall is not. The metal framing for the exterior wall starts and stops at the floor. The wall assembly has a finish, but the main assembly has continuous sheathing on the exterior and gypsum board...
  4. R

    Thermo-Ply (DRYline TSX and thermoPLY structural sheating by OX)

    Can someone help me understand, why do they add two different types of thermoPly. I have seen some construction houses with DRYline TSX red color and thermoPLY structural sheathing by OX green color. any reasons for using two instead of one single for the entire house?
  5. A

    Allowable Area of Openings On Diagonal Wall

    We have a wall that is running diagonal to the property line, and so various points of the wall have different allowable areas. How do you go about calculating the total allowable area of openings for the wall? Would we simply add together the allowable area for each segment? It is worth noting...
  6. J

    Treatment of Joint Between Shear Wall and Exterior Wall

    Hello All, this is my first post on this site, though I’ve found a lot of useful information here. I appreciate any guidance. I’m on a high-rise condo project where a 12” thick concrete shear wall makes up part of a demising wall between dwelling units (2009 IBC, Type IA construction). The...
  7. N

    Table 601, footnote d

    Type IIIA construction: R2 occupancy, Steel column structure, concrete slabs over metal deck floors. storefront glass system for the exterior. According to Table 601, under IIIA we are allowed to have a primary structure of 1 hour. Per 704.10, if the structural members are located within the...
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