Clearlight Safety Frame AG1 Sliding Safety Frame Accepted for use by the Dept. of Agriculture under clearlights as a safety frame as per S 101D (Sept 16) Adjusts from 1200mm to 1800mm between purlins. Can be fitted while sheeting from the outside or can be fitted after sheeting from the inside. Ideal for retrofit in existing buildings. Roofing Products products: Clearlights Gutter Brackets Ashgrid All Product Categories