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. »

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.

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.

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.