This is for FD30's.
I understand plastic packers can be used (chisled back where necessary) - behind a 10mm bead of BS476-22 intuminscent mastic (ie mastic made for sealing the gap around door frames and the supporting construction, such as Dow Firestop 400 (Joint Type B, 10mm depth, 10mm width - gives a 2 hour rating).
Gaps will be covered with Ovolo architrave, although it is questionable whether the requred 15mm depth will be attained due to the curved shape of the architrave.
Can anyone point me to the official texts for the specification of packer type (ie is it in the BS8214 Code of Practice).
Thanks
I understand plastic packers can be used (chisled back where necessary) - behind a 10mm bead of BS476-22 intuminscent mastic (ie mastic made for sealing the gap around door frames and the supporting construction, such as Dow Firestop 400 (Joint Type B, 10mm depth, 10mm width - gives a 2 hour rating).
Gaps will be covered with Ovolo architrave, although it is questionable whether the requred 15mm depth will be attained due to the curved shape of the architrave.
Can anyone point me to the official texts for the specification of packer type (ie is it in the BS8214 Code of Practice).
Thanks