CSA A220.0-06:2016 pdf download.Concrete roof tiles
1.1 CSA A220.0-06 applies to concrete roof tiles and tiling accessories intended for use as weather-resistant roofing materials.
1.2 This Standard specifies the requirements and procedures for the sampling and testing of concrete roof tiles for dimensional tolerances, water absorption, water permeability, freezing and thawing resistance,transverse strength, and material quality.
1.3 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; "may" is used to express an option or that which is permissible within the limits of the standard; and "can" is used to express possibility or capability. 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.
7.1.2 Conditioning of samples
Testing shall be carried out by a testing laboratory that is accredited by an accredited certification organization as being in accordance with the requirements of CSA A283 or by a testing laboratory accredited by the Standards Council of Canada.
7.1.3 Surface preparation
Loose particles shall be removed from specimens by scrubbing with a fibre brush and tap water.Where uncoated specimens are required by Clauses 7.3 or 7.4, tiles and tiling accessories that are sampled in accordance with Clause 5.1 shall be sampled before the coating process or shall be lightly sandblasted to remove the coating.
7.2.2 Test method
A template matching the nominal product specification shall be placed perpendicular to the upper surface of the tile and at right angles to the side. With a round 2.5 mm diameter gauge, the full contact area between the template and the upper surface of the tile shall be checked. Any area where space exceeds the thickness of the test gauge shall be reported. See Figure 4.
8.2.2 Method of identification
The markings required by Clause 8.2.1 shall be on the packaging of the tiles and tiling accessories or on slips of paper inserted between tiles and tiling accessories in packages or on pallets. At least one marking or slip of paper shall be used for each type of tile or tiling accessory on a pallet.
8.2.3 Durability and legibility
The markings required by Clause 8.2.1 shall be such that they are not made illegible by exposure to heat,light, moisture, or abrasion during normal handling and use.
8.3 Literature
AllI promotional and technical literature shall include the following statement: "The colour of all tiles and tiling accessories may change as a result of aging, weathering, and/or efflorescence; the change for surface coloured tiles and tiling accessories may be more pronounced."CSA A220.0-06 pdf download.