 |
| Purchase Information |
| Use this form to request purchase information on CSA online subscriptions. |
|
|
Document CSA A123.4-04 is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
You may also purchase this document alone from the IHS Standards Store.
CSA A123.4-04 Document Information:
Title
Asphalt for constructing built-up roof coverings and waterproofing systems
CSA Standards
Publication Date:
Mar 1, 2004
Scope:
This Standard covers asphalt intended for use as hot cement and
topcoat in the construction of built-up coverings on roof decks of
various types and slopes and in the construction of waterproofing
systems.
The following types of asphalt are covered by this Standard:
(a) Type I: asphalt for use on built-up roofs with slopes less
than or equal to 1:16 and for use as waterproofing below ground
level when not exposed to surface temperatures above 25 ºC
(77ºF).
(b) Type II: asphalt for use on built-up roofs with slopes less
than or equal to 1:8 and for use as waterproofing above ground
level on vertical surfaces not exposed to direct sunlight.
(c) Type III: asphalt for use on built-up roofs with slopes
greater than 1:8 for exposed applications or for use as
waterproofing above ground level on vertical surfaces not exposed
to direct sunlight.
Notes:
(1) The slopes specified in this clause are
intended for guidance only and are not necessarily applicable to
all service conditions or when asphalt is used with glass or
inorganic felt ply.
(2) When asphalts covered by this Standard
are used for waterproofing, the recommended procedure for their
application should be in accordance with CGSB 37-GP-37M.
In CSA 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 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.
Legends to equations and figures are considered requirements.
The values given in SI (metric) units are the Standard. The
values given in parentheses are for information only.
About IHS
IHS (NYSE: IHS) is a leading global provider of critical technical information, decision-support tools and related services in a number of industries including aerospace and defense, automotive, construction, electronics, and energy. IHS serves customers ranging from large governments and multinational corporations to smaller companies and technical professionals in more than 100 countries. IHS been in business for more than 45 years and employ more than 2,300 people around the world.
