Rytons A1® Fire-rated Cowl Surface mounted hooded cover for air bricks, vents and grilles. Custom cowl opening width x height to cover vent/grille plus 15mm flange (with screw holes) top and sides. Note: Rytons recommend a cowl opening 10mm larger than the vent/grille for installation clearance. Custom RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0. Properties: Class A1 fire-rated 0.9mm galvanised steel. Class A2-s1, d0 fire-rated RAL colour powder coating. Product Code: A1COWL. Download Drawing.
Cowl opening required W x H (to cover vent/grille W x H) plus 15mm flange (with screw holes) top and sides. Note: Rytons recommend a cowl opening 10mm larger than the vent/grille for installation clearance:
Quantity required per RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0:
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