摘要 |
A metal casing <B>3</B> for protecting a building element <B>2</B> from fire is arranged to surround at least a portion of the building element <B>2</B> and has external surfaces coated with a layer of intumescent material <B>4</B>. The intumescent material <B>4</B> may be cast onto the casing <B>3</B> which may comprise at least two joined sections. The casing <B>3</B> may be perforated. The intumescent material <B>4</B> may be crosslinkable material, especially an epoxy material. |