Construction and Engineering

Origin: CSA
Close date: Sep 21, 2026
View moreView less
 

1.1     Généralités

Ces lignes directrices donnent des mesures pour réduire les risques d’inondation du sous-sol et pour atténuer les effets négatifs sur les biens, la sécurité publique et la santé publique en cas d’inondation. Elle traite des maisons existantes, neuves, reconstruites et rénovées dans les contextes ruraux et urbains.

1.2 Bâtiments concernés

Ces lignes directrices concernent tous les types de maisons touchant le sol, avec ou sans sous-sol, qui sont considérées des bâtiments selon la Partie 9 du Code national du bâtiment (CNB), notamment :

a)    maisons isolées;

b)   maisons jumelées; et

c)    maisons en rangée.

Les recommandations données dans ces lignes directrices sont généralement appropriées pour les maisons desservies par un réseau à écoulement gravitaire pluvial, sanitaire, unitaire ou une canalisation de drainage.

1.3 Types de risque d’inondation

Les types de risque d’inondation concernés par les mesures décrites dans ces lignes directrices sont :

a)    les inondations terrestres associées à des précipitations qui résultent en une accumulation/formation d’étang et/ou de la fonte de la neige dans des maisons touchant au sol ou autour de celles-ci;

b)   le refoulement d’égout sanitaire et pluvial (surcharge);

c)    l’inondation par infiltration (infiltration des eaux souterraines);

d)   défaillance de la tuyauterie et du drainage, incluant la défaillance des systèmes de puisard et du branchement d’égout; et

e)    l’inondation associée à une mauvaise installation des technologies de réduction des risques d’inondation du sous-sol (voir l’annexe A).

Note : Il est rappelé aux utilisateurs de ces lignes directrices que toute disposition donnée dans les présentes est l’objet de codes et normes existants applicables dans la compétence en vertu de laquelle l’utilisateur des lignes directrices exerce ses activités. Il est fortement recommandé que des professionnels certifiés appropriés effectuent tout travail indiqué dans ces lignes directrices. Tous les codes et toutes les normes locaux, provinciaux et nationaux appropriés doivent être respectés lors de l’application des dispositions indiquées aux présentes. Tous les permis et toutes les inspections appropriés des autorités compétentes doivent être obtenus et effectués lors de la mise en œuvre de toute tâche précitée.

1.4 Exclusions

Alors que les mesures présentées dans ces lignes directrices pourraient limiter dans un certain degré quelques types de risques d’inondation, ces lignes directrices ne visent pas à traiter des débordements de rivière ni des inondations côtières (y compris celles liées à de grands plans d’eau).

Note : De plus amples renseignements sur l’ingénierie relative à la résistance des planchers se trouvent dans le document du CNRC « Guide for Flood Resistant Buildings. »

Origin: CSA
Close date: Sep 21, 2026
View moreView less
 

1.1     General

This Guideline covers measures to reduce the risks of basement flooding, and to mitigate the adverse effects on property, public safety, and public health in case of a flood event. It covers existing, new, rebuilt, and renovated houses in rural and urban settings.

1.2 Buildings covered

This Guideline covers all types of ground-related houses, with or without basements, that are considered Part 9 buildings according to the National Building Code (NBC) including

a) detached houses;

b) semi-detached houses; and

c) row houses.

Recommendations made in this Guideline are generally appropriate for houses serviced by gravity-based storm, sanitary, combined, or third pipe systems.

1.3 Types of flood hazards[JL1] [CC2] [CC3] 

The types of flood hazards addressed by the measures described in this Guideline are

a) overland flooding associated with precipitation events  and resulting in the accumulation/ponding of rainwater and/or snow melt in and around ground-related houses;

b) storm and sanitary sewer backwater (surcharge);

c) infiltration flooding (groundwater seepage);

d) plumbing and drainage failures, including failure of sump systems and sewer lateral failure; and

e) flooding associated with improper installation of basement flood risk-reduction technologies (see Annex A).

Note: Users of this Guideline are reminded that any of the provisions outlined herein are subject to existing codes and standards that are applicable in the jurisdiction under which the Guideline user is operating. It is strongly recommended that appropriate licensed professionals conduct any work outlined in this Guideline. All appropriate local, provincial, and national codes and standards must be adhered to in the application of the provisions outlined herein. All appropriate permits and inspections from authorities having jurisdiction must be obtained when undertaking any of the work outlined here.

1.4 Exclusions

While the measures presented in this Guideline might limit some types of flood risks to a degree, this Guideline is not meant to address riverine and coastal flood (inclusive of large water bodies) risks.

Note: Further information on Engineering for floor resistance is available through NRCs Guide for Flood Resistant Buildings.

 

Origin: CSA
Close date: Oct 9, 2026
View moreView less
 

1.1 Scope

ASME A17.8/CSA B44.8 applies to elevators permanently installed in a wind turbine tower to provide vertical transportation of authorized personnel and their tools and equipment only.

Such elevators are typically subjected to extreme temperatures, humidity variations, and substantial horizontal motions where, by reason of their limited use and the types of construction of the structures served, full compliance with ASME A17.1/CSA B44 Part 2 is not practicable or necessary.

 

Origin: CSA
Close date: Oct 9, 2026
View moreView less
 

CSA A3001:23

1 Scope

1.1 General

This Standard addresses the following aspects of cementitious materials:

their definitions;

their chemical, physical, and uniformity requirements;

the tests required;

the procedures for inspection and sampling; and

the units of measurement, packaging, marking, and storage.

1.2 Classifications

The cementitious materials for use in concrete are classified as follows in this Standard:

portland cement;

blended hydraulic cement;

portland-limestone cement;

supplementary cementitious materials; and

blended supplementary cementitious materials.

1.3 Terminology

In these Standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standards; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standards.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.4 Dual measurements

The values given in SI units are the units of record for the purposes of these Standards. The values given in parentheses are for information and comparison only.

CSA A3002:23

1 Scope

1.1 General

This Standard specifies the requirements for masonry and mortar cement for use in masonry mortar.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

 

CSA A3003:23

1 Scope

1.1 General

Test methods in this Standard and the “D series” test methods of CSA A3004 address the chemical analysis of hydraulic cement and supplementary cementitious materials.

Note: For frequencies of chemical testing, see Table 1 of CSA A3004-A1.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

 

CSA A3004:23

1 Scope

1.1 General

This Standard specifies the requirements of test methods and standard practices for hydraulic cements, supplementary cementitious materials, and blended supplementary cementitious materials.

1.2 Test methods and standard practices

This Standard is divided into test methods and standard practices, numbered as follows:

A1 to A7, representing dry tests;

B1 to B8, representing paste tests;

C1 to C9, representing mortar tests;

D1, representing a test on limestone; and

E1, representing the evaluation of alternative supplementary materials.

1.3 Contents of test methods and standard practices

Each test method or standard practice contains

a scope;

reference publications;

summary of test;

equipment, and materials; and

test procedure.

1.4 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

 

CSA A3005:23

1 Scope

1.1 General

This Standard specifies the materials and equipment used in testing hydraulic cements, supplementary cementitious materials, and blended supplementary cementitious materials.

1.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Origin: CSA
Close date: Oct 16, 2026
View moreView less
 

CSA A23.1:24

1.1 General

This Standard provides the requirements for materials and methods of construction for

cast-in-place concrete, concrete precast in the field, and concrete placed by either the wet-mix or dry-mix shotcrete process; and

residential concrete used in the construction of buildings conforming to Part 9 of the National Building Code of Canada (NBC).

1.2 Exclusions
This Standard does not specify the following:
a) requirements for the design of concrete structures, which are provided in CSA A23.3 and CSA S6;
b) designs of specialty concrete products, which are described in separate CSA Group Standards;
c)
test methods for concrete, which are provided in CSA A23.2;
d) design provisions governing the fire resistance of reinforced concrete structures, which are set out
in the NBC;
e) requirements for the plant production of precast concrete, which are provided in CSA A23.4; and
f) use of proprietary materials or methods of construction.
Note: Proprietary materials or methods of construction may be permitted by the owner under a separate
specification, provided that the quality of the resulting construction meets the minimum requirements of this
Standard.
1.3 Precasting of concrete in the field
1.3.1
At the option of the owner, precasting of concrete in the field or in a plant (temporary or permanent) is
governed by this Standard or by CSA A23.4, except as limited by Clauses 1.3.2, 1.3.3, and 1.3.4 of this
Standard.
Note: Guidelines for such a choice are provided in CSA A23.4.

1.3.2
Precast products that may be produced in accordance with this Standard include conventionally
reinforced elements of structures, such as tilt-up walls, lintels, and sills. Products requiring prestressing
or post-tensioning are produced in accordance with CSA A23.4.
Note: For references to tilt-up construction, see PCA PA163 and ACI 551R.
1.3.3
If tolerances equivalent to the requirements of CSA A23.4 are desired, then CSA A23.4 is specified for all
precasting operations.
1.3.4
The requirements of CSA A23.4 are applicable to pretensioned concrete and precast concrete used in
segmental construction.
1.4 Parking garages
For parking garages, the additional requirements of CSA S413 are applicable.
1.5 Supplementary specifications
In addition to the requirements of this Standard, the owner may elect to include supplementary
specifications to address proprietary materials and methods of construction, or any other elements not
dealt with in this Standard, in order to ensure that the desired quality level is maintained.
1.6 Terminology
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to
satisfy in order to comply with the Standard; “should” is used to express a recommendation or that
which is advised but not required; and “may” is used to express an option or that which is permissible
within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a
note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as
requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their
application.

CSA A23.2:24

1.1 General
This Standard covers the principal test methods for hardened and freshly mixed concrete and for concrete materials, as
specified in CSA A23.1 and CSA A23.4. The test methods are organized as follows:
a)
aggregate test methods;
b)
miscellaneous;
c)
concrete test methods; and
d)
dimensional (moulds).
1.2 Hazards
This Standard does not purport to address the safety problems associated with its use. It is the responsibility of the user of
this Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations
prior to use.
Note: Since many users provide individual copies of the test methods for use in the laboratory, the “Hazards” clause is
repeated in each test method.
1.3 Dimensions
This Standard is presented in SI units in accordance with ISO 80000-1.
Note: The ASTM Standards that are referenced herein are often based on the imperial system, with soft SI equivalents.
Where ASTM Standards are referenced, the appropriate SI units in the ASTM Standards should be used wherever possible.
When the ASTM Standards refer to other ASTM Standards for which there are equivalent CSA Standards, the latter
Standards should be used to ensure a continuity in such things as sieve sizes, SI units, and other particular differences
between the Standards.
1.4 Terminology
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to
comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and
“may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying
a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Origin: CSA
Close date: Oct 23, 2026
View moreView less
 

CSA A123.26:25 - Performance requirements for climate resilience of low slope membrane roofing systems

1 Scope

1.1

This Standard outlines requirements for low slope membrane roofing systems (LSMRS) when identified as “silver” and “gold” performance level based on the climate severity and resilience requirements.

Note: The National Building Code of Canada and the National Energy Code of Canada for Buildings provides “bronze” requirements for LSMRS.

1.2

This Standard is intended to be used by building designers, building owners, building code officials, product manufacturers, and installers.

1.3

The requirements provided in this Standard do not include, nor are they intended to override, other requirements, by the governing building code or the authority having jurisdiction (AHJ).

1.4

This Standard does not address the climatic adaptation requirements for the structural support (deck) below the LSMRS.

1.5

This Standard does not purport to address all the health and safety aspects associated with its use. Anyone using this Standard has the responsibility to consult with the appropriate authorities and to establish health and safety practices, in conjunction with any existing applicable regulatory requirements, prior to its use.

1.6

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.7

The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.

 

 

CSA A123.26 outlines requirements for low slope membrane roofing systems (LSMRS) when identified as “silver” and “gold” performance level based on the climate severity and resilience requirements.

 
CSA A123.27:XX

 

User guide to CSA A123.26, Performance requirements for climate resilience of low slope membrane roofing systems

Scope

I.1.1 Purpose of CSA A123.26

CSA A123.26 outlines requirements for low slope membrane roofing systems (LSMRS) when identified as “silver” and “gold” performance level based on the climate severity and resilience requirements.

 

CSA A123.26-21, Performance Requirements for Climate Resilience of Low Slope Membrane Roofing Systems” was developed based on the current best practice used by the roofing community. The framework of the standard and its main sections are summarized in Figure 1.

Figure 1. The framework of CSA A123.26

Steps 1 to 3 are determined using the web-application tool “Climate-RCI” (https://nrc.canada.ca/en/research-development/products-services/software-applications/climate-rci/).

The performance requirements are provided in Table 1 of CSA A123.26.

This user guide provides guidance for the requirements as well as for the application of the requirements. This guidance corresponds to the following sections in the standard:

-      Section 5 (performance requirements)

-      Section 6 (wind performance requirements) and

-      Section 7 (rain performance requirements).

The user guide is intended to be complementary to CSA A123.26 and not a standalone document. Its objective is to simplify the process of applying the standard, minimize the possibility of misinterpretation or improper implementation of the requirements using practical illustrations.

I.1.2 Limitations of CSA A123.26 and CSA A123.27

The requirements outlined in the standard and user guide are based on best practices currently applied by the roofing community. CSA or the technical committee members shall not be liable in any event for any damages, whether direct or indirect, special or general, consequential or incidental, arising from the use of the standard and/or the guide. Responsibility lies with the professional designer.

The user guide does not address requirements specific to earthquake zones.