30 Questions
According to the National Building Code of Canada 2015, what is the minimum thickness of the concrete in flat insulating concrete form walls not in contact with the ground?
140 mm
In above-grade flat insulating concrete form walls, where should the horizontal reinforcement be placed?
In the middle third of the wall section
What is the spacing requirement for vertical reinforcement in above-grade flat insulating concrete form walls?
600 mm o.c.
According to the National Building Code of Canada 2015, how far should vertical reinforcement be placed from each side of an opening in non-loadbearing flat insulating concrete form walls?
600 mm
What is the maximum width of openings in non-loadbearing flat insulating concrete form walls that require reinforcement at the top and bottom with one 10M bar?
600 mm
In loadbearing flat insulating concrete form walls, what is the requirement for lintels over openings wider than 900 mm?
Lintels made of steel
According to the National Building Code of Canada, what is the required clearance between masonry or concrete chimneys and combustible framing for interior chimneys?
50 mm
What is the minimum wall thickness required for the walls of a masonry chimney?
75 mm
Which of the following materials can be used for the waterproof cap of a chimney?
Reinforced concrete
What is the minimum separation required between flue liners in the same chimney?
90 mm
What is the maximum height a chimney can extend above a roof or masonry wall?
3.6 m
What is the required clearance between a cleanout opening and combustible material?
150 mm
Which of the following materials is NOT recommended for chimney lining?
Metal
What is the minimum width of an oval chimney flue compared to its breadth?
Greater than two-thirds
What is the minimum thickness required for clay liners used in chimneys?
15.9 mm
What is the recommended thickness for metal liners used in chimneys serving gas- or oil-burning appliances?
0.3 mm
What is the minimum distance that a chimney flue should extend above the highest point at which the chimney comes in contact with the roof?
900 mm
What type of mortar is recommended for laying chimney liners used in chimneys for solid-fuel-burning appliances?
High temperature cement mortar
Which type of chimneys does Section 9.21 apply to?
Rectangular masonry or concrete chimneys
According to Section 9.21.1.2, how should the walls of a chimney or flue pipe be constructed?
Smoke- and flame-tight
According to Section 9.21.2.1, what limitation is placed on a chimney flue that serves a fireplace or incinerator?
It should not serve any other appliance
According to Section 9.21.2.2, where should two or more fuel-burning appliances connected to the same chimney flue be located?
On the same storey
According to Section 9.21.2.3, what is the maximum incline allowed for chimney flues?
45° to the vertical
According to Section 9.21.2.4, what is the size requirement for a chimney flue serving only one appliance?
The flue area should be at least equal to that of the flue pipe connected to it
How much total cross-sectional area of steel reinforcement is required for masonry walls?
0.002 times the horizontal cross-sectional area of the wall
What standard should be followed for the installation of reinforcement for masonry?
CSA A371, “Masonry Construction for Buildings”
What is the minimum galvanizing coating class or thickness for wire ties and continuous reinforcing connectors?
ASTM A 153/A 153M Class B2
What is the minimum galvanizing coating class or thickness for hardware and bolts connectors?
See ASTM A 153/A 153M
What is the minimum galvanizing coating class or thickness for strip, plate, bars, and rolled sections connectors?
ASTM A 123/A 123M 610 g/m2
What is the minimum galvanizing coating class or thickness for sheet connectors?
ASTM A 123/A 123M 305 g/m2 on material 0.76 mm thick
Quiz on Protection from Precipitation and Damage: Test your knowledge on how to protect above-ground flat insulating concrete form walls from precipitation and damage, as well as the regulations and guidelines for masonry and concrete chimneys and flues. Learn about the application and requirements for rectangular chimneys serving fireplaces or appliances.
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