(1) Asbestos-cement corrugated sheets for roofing shall comply with requirements of C.A.S. 198 or B.S. 690, and asbestos-cements ridging , barge-boards , flashings and other accessories shall be of material of similar quality and thickness

(2) Except as provided for in subsection (3), where asbestos-cement roof-sheeting is used on a roof, the roof shape shall be not less than 10 degrees, and the minimum side-laps and end-laps shall be in accordance with Table 1.

TABLE 1
MINIMUM SIDE-LAPS AND END-LAPS FOR ASBESTOS-CEMENT ROOF-SHEETING

(3) Where asbestos-cement roof-sheeting is used on a roof and the roof-slope is less than 10 degrees, both side-laps and end-laps must be sealed with a non-hardening compound.