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ROOF TILE TECHNICAL DATA

Physical Data

Size:
Overall 17" long, 12 3/8" wide (432mm x 314mm)

Coverage:
Double Roman: 94 tiles per 100 square feet.
Shake & Slate: 89 tiles per 100 square feet.
At minimum 3" (75mm) Head Lap.

Weight:
Double Roman: 950 lbs. (430 kg) per 100 square feet.
Shake & Slate: 1000 lbs. (445 kg) per 100 square feet.
At minimum 3" (75 mm) Head Lap.

Minimum Pitch:
4:12 (19 degrees form Horizontal)

Composition

Columbia Concrete tile are composed of a mixture of cement, sand aggregate, colour oxides and water, extruded under high pressure. The tile body is integrally coloured.

Accessories

Trim units for tile include Hip Starters, Caps for hips and ridges, and Rakes for gable edges. They are available in either the Universal or Double Roman profiles.

Universal Rake

Universal Cap

Universal Hip Starter

Double Roman Rake

Double Roman Cap

Double Roman Hip Starter

Performance

Columbia Concrete roof tiles meet the requirements of CAN/CSA A220.0 M91, "Performance of Concrete Roof Tiles". They also qualify for a Class "A" fire rating, and can be used with steel strapping and trusses in non-combustible construction.
Columbia Concrete roof tile have been tested to meet the freeze/thaw requirements of the CSA standard. Click here for Freeze/Thaw cycle data.
Natural variation in raw materials may result in colour differences between different production runs. Temporary efflorescence may occur. Weathering of the tile surface can be expected during the life of the roof.

Underlayments

Requirements for rolled and sheet underlayments are specified in CAN/CSA A220.1. Their use varies by climatic location as defined in the standard and by manufacturer's recommendations. Click here for underlayment requirement data.

Extreme Climate Conditions

Columbia Concrete tile can be used in high snow load conditions, where most other roofing systems can fail. Architects should design building to suit these condition. Click here for snow load data.


Building Code Approvals (Pending ICBO#)

INTERTEK TESTING SERVICES N.A. LTD.
WARNOCK HERSEY

CERTIFICATION LISTING REPORT

Roof Covering Material Manufactured by:
Columbia Concrete Products Ltd.
8650 - 130 Street
Surrey, B.C.

Product:
CONCRETE ROOF TILES

Class A Concrete Roof Tiles - in Double Roman, Shake, Split Shake and Slate Profiles.

Listed materials are identified by a Warnock Hersey label on the pallet bearing the wording "Listed Roofing Material", an issue number, the Warnock Hersey logo, and our evaluation report# NER-QA-219.

I. Description: Columbia Concrete Roofing Tiles are panels composed of Type 1 Portland Cement, concrete sand and various pigments. The panels are 17 inches long (43 cm) and 12-3/8 inches wide (31.4 cm). Double Roman are 1 inch (2.5 cm) thick at the head and nose ends, Shake and Slate are 1-1/4 inches (3 cm) thick at the head and nose ends.

Dry panel weights are 8.2 psf (Double Roman) and 10.5 psf (Shake and Slate). Installed weight might reach 8.8 psf (Double Roman) and 11.2 psf (Shake and Slate).

II. Installation: Columbia Concrete Roofing Tiles may be installed with code complying fasteners, on code complying spaced or solid sheathing, over code complying underlayment.

Minimum roof slope is 4:12.

III. Evaluation Criteria: Columbia Concrete Roofing Tiles were successfully evaluated as Class A concrete roofing tiles in accordance with the following criteria:

  • Test Standard for Determining Fire Retardancy of Roof Covering Materials, UBC 15-2, ASTM E108, UL 790 and CANULC S107.
  • ICBO-ES Acceptance Criteria 07, Section 3.2 - Concrete Tile.
  • CSA A220 Concrete Roof Tiles.

Look for our Warnock Hersey Certification Mark

Renewable on December 31, 1999

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