EW808B Thatch Fireboard System


This is an assessment of the TAS100 Thatch Fireboard System for use in thatched roofs.

Thatch Fireboard System comprises TAS100 Thatch Fireboard (9mm thick non-combustible calcium silicate fireboard) installed over rafters prior to installation of traditional thatch roof covering.

Thatchbatt® resin bonded insulation slabs are installed between rafters supported on Thatchbatt® Wired fixing system with vapour control layer and finishing layer.

The system is suitable for use as roof covering within 6m of a relevant boundary.


Valid until 5th January 2021


Thatching Advisory Services (UK) Ltd
8-10 Queen Street
EX12 2NY
01297 23671