Rytons A1® Fire-rated Slim Vent® Major with Flyscreen (Fire-rated Cavity Weep) A1 fire-rated Slim Vent® cavity weep hole duct. Ensures the cavity of wide external walls can drain freely. Front-faced spot welded galvanised steel flattened mesh. Custom length x 66mm H x 10mm W (nominal size). 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 A1 fire-rated 06-20FG mesh. Class A2-s1, d0 fire-rated RAL colour powder coating. Product Code: A1SVFMAJ. Download Drawing.
Quantity required per RAL colour in matt, semi-gloss or gloss finish achieving Class A2-s1, d0:
Length required x 66mm H x 10mm W (nominal size):
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