NBC 2015 - Section 9.11-13 - 01
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Questions and Answers

According to the National Building Code of Canada 2015, what is the minimum apparent sound transmission class (ASTC) rating required for a separating assembly and adjoining constructions in a dwelling unit?

  • 50
  • 47 (correct)
  • 40
  • 43

    • When a house contains a secondary suite, what is one of the construction requirements for separating the dwelling units from other noise-generating spaces in the house?

  • Resilient channel on one side of the separation spaced 400 or 600 mm o.c. (correct)
  • Joist spaces filled with sound-absorbing material of not less than 150 mm nominal thickness
  • STC rating of not less than 43
  • 12.7 mm thick gypsum board on both sides of walls

    • What is the minimum sound transmission class (STC) rating required for a separating assembly in a dwelling unit, according to the National Building Code of Canada 2015?

  • 55
  • 47
  • 43 (correct)
  • 50

    • What is the minimum STC rating required for construction separating a dwelling unit from an elevator shaft or refuse chute?

    <p>55</p> Signup and view all the answers

    What is the minimum ASTC rating required for a separating assembly and adjoining constructions in a dwelling unit, according to the National Building Code of Canada 2015?

    <p>40</p> Signup and view all the answers

    Which type of waterproofing is required for assemblies separating interior space from the ground to prevent the ingress of water into building assemblies and interior spaces?

    <p>Interior waterproofing</p> Signup and view all the answers

    What type of materials should be used for exterior waterproofing?

    <p>Materials conforming to ASTM D 1227</p> Signup and view all the answers

    What thickness should the joints be lapped for waterproofing?

    <p>Not less than 100 mm</p> Signup and view all the answers

    Which of the following materials should be resistant to mechanisms of deterioration?

    <p>Materials compatible with adjoining materials</p> Signup and view all the answers

    For which type of structures is waterproofing required for roofs?

    <p>Underground structures</p> Signup and view all the answers

    Which of the following is true about the requirements for excavations under a building?

    <p>The bottom of every excavation must be free of all organic material.</p> Signup and view all the answers

    What is the minimum depth of foundations below finished ground level for buildings containing no heated space and poor soil drainage?

    <p>Not less than the depth of frost penetration</p> Signup and view all the answers

    When can the foundation depths required by Sentence (1) be decreased?

    <p>When the experience with local soil conditions shows that lesser depths are satisfactory.</p> Signup and view all the answers

    Which of the following structures are exempt from the foundation depth requirements?

    <p>All of the above.</p> Signup and view all the answers

    What is the minimum depth of foundations for exterior concrete steps with more than 2 risers?

    <p>Below the depth of frost penetration</p> Signup and view all the answers

    According to the National Building Code of Canada 2015, what is the maximum water vapour permeance allowed for a dampproofing material when tested in accordance with Procedure A (wet cup) of ASTM E 96/E 96M?

    <p>43 ng/Pa·s·m2</p> Signup and view all the answers

    When dampproofing unit masonry walls, how much mortar should be applied on the exterior face below ground level?

    <p>Not less than 6 mm</p> Signup and view all the answers

    What should be done to the surface required to be dampproofed before applying the dampproofing material?

    <p>Clean and dry</p> Signup and view all the answers

    What is the maximum water vapour permeance allowed for dampproofing material installed below the floor?

    <p>Complying with Clause 9.13.2.2.(2)(a)</p> Signup and view all the answers

    What type of dampproofing material should be used if it is installed between a floor-on-ground and a finished floor?

    <p>Rigid extruded/expanded polystyrene with sealed or ship-lapped joints</p> Signup and view all the answers

    Which standard is used to determine the Sound Transmission Class (STC) ratings?

    <p>ASTM E 90</p> Signup and view all the answers

    Which standard is used to determine the Apparent Sound Transmission Class (ASTC) ratings?

    <p>Article 5.8.1.4.</p> Signup and view all the answers

    Which method can be used to demonstrate compliance with the required STC ratings?

    <p>Measurements in accordance with Sentence 9.11.1.2.(1)</p> Signup and view all the answers

    Which method can be used to demonstrate compliance with the required ASTC ratings?

    <p>Measurements or calculations in accordance with Sentence 9.11.1.2.(2)</p> Signup and view all the answers

    What type of floor treatment is required for a flanking wood-framed floor assembly with an STC rating of at least 50?

    <p>Wood strip flooring not less than 16 mm thick aligned parallel to separating wall</p> Signup and view all the answers

    According to the National Building Code of Canada 2015 Volume 2 Division B, which of the following statements about backfill placement is correct?

    <p>Backfill should be placed to avoid damaging the foundation wall and drainage tile.</p> Signup and view all the answers

    According to the National Building Code of Canada 2015 Volume 2 Division B, which of the following materials can be used for exterior dampproofing?

    <p>Emulsified Asphalt Used as a Protective Coating for Roofing</p> Signup and view all the answers

    According to the National Building Code of Canada 2015 Volume 2 Division B, when is dampproofing required for foundation walls below ground level?

    <p>When the exterior finished ground level is at a higher elevation than the ground level inside the foundation walls.</p> Signup and view all the answers

    According to the National Building Code of Canada 2015 Volume 2 Division B, which of the following statements about backfill near the foundation is correct?

    <p>Backfill near the foundation should be free of debris and boulders larger than 250 mm diam.</p> Signup and view all the answers

    According to the National Building Code of Canada 2015 Volume 2 Division B, what is the purpose of Subsection 9.13.2?

    <p>To provide measures for dampproofing and waterproofing.</p> Signup and view all the answers

    True or false: Waterproofing is required for assemblies separating interior space from the ground to prevent the ingress of water into building assemblies and interior spaces.

    <p>True</p> Signup and view all the answers

    True or false: Waterproofing is not required for roofs of underground structures.

    <p>False</p> Signup and view all the answers

    True or false: Materials installed to provide required waterproofing should be compatible with adjoining materials.

    <p>True</p> Signup and view all the answers

    True or false: Materials used for exterior waterproofing should conform to ASTM D 1227, 'Emulsified Asphalt Used as a Protective Coating for Roofing.'

    <p>True</p> Signup and view all the answers

    True or false: Materials used for exterior waterproofing should conform to ASTM D 3019, 'Lap Cement Used with Asphalt Roll Roofing, Non-Fibered, Asbestos-Fibered, and Non-Asbestos-Fibered.'

    <p>True</p> Signup and view all the answers

    True or false: Materials used for exterior waterproofing should conform to ASTM D 4479/D 4479M, 'Asphalt Roof Coatings – Asbestos-Free,' and be installed with reinforcing material.

    <p>True</p> Signup and view all the answers

    True or false: Materials used for exterior waterproofing should conform to ASTM D 4637/D 4637M, 'EPDM Sheet Used In Single-Ply Roof Membrane.'

    <p>True</p> Signup and view all the answers

    True or false: Materials used for exterior waterproofing should conform to ASTM D 4811/D 4811M.

    <p>False</p> Signup and view all the answers

    True or false: Waterproofing materials should be resistant to mechanisms of deterioration that may reasonably be expected.

    <p>True</p> Signup and view all the answers

    True or false: The joints for waterproofing should be lapped at least 100 mm.

    <p>True</p> Signup and view all the answers

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