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Fire Protection for Thatched Roofs

Product 123


A range of fire barrier products designed to compartmentalise loft spaces and protect thatched roofs

Not available to purchase online.

We need to ask you a few more questions and ensure this is the suitable product for your needs.

To order please call us on +44 (0) 1 304 842 555

£0.00 ex. Vat


Fire Protection for Thatched Roofs

“Protect-A-Thatch” – fire protection system for roofs. A glass fibre cloth fire barrier curtain, with graphite coated on one side and an aluminium backing. Also provides effective thermal insulation properties. Moreover, increased thermal insulation properties comply with new UK heat loss regulations.

  • Designed for use in roof voids to protect thatched roofs.
  • Also part of the range is a protective board for chimney areas in thatched roofs.
  • Maximum 50 metres on a roll.

Furthermore, for external applications, we can supply a different type of barrier Product 56 – FB30 Fire Barrier Curtain. Available in other ranges such as added moisture protection Product 57 – FB70 Fire Barrier Curtain.

Fire barriers provide an effective solution for rooms or areas within buildings that need fire protection. Browse our full range Fireproof Barriers and Membranes for Protecting Roofs and Thatch online.

Envirograf ® passive fire products carry the hallmark of excellence, reflecting the high standards that prevail in its laboratory, test rig, and manufacturing plant. Envirograf® passive fire products are subject to rigorous quality control which, at all stages, ensures products remain at the leading edge of fire containment technology. This quality has earned the company and its passive fire products a high reputation. With its operating system accredited to ISO9001.


– Can be made for use around steel columns and cross members; each section will be made separately with the joint placed where outside materials are being fixed to the steelwork. Where each section comes together, there will be an overlap joint to seal

– There are no fibres when cutting or fixing the barrier

– Provides robust fire defence and improves thermal insulation of thatched roofs

– THS60 will also provide additional waterproofing

Application Instructions

Barrier curtains can be fitted vertically or horizontally. This product can be overlapped by 30mm; Envirograf® IA adhesive (Product 46) must be used to adhere overlapping joints.
Product 123 can be used over roofs as a roof fire-curtain or fitted internally under trusses for protection from internal to external in a fire.

STB/91/T can be adhered to the chimney brickwork up to the height of the thatch using Envirograf® IA adhesive (Product 46).

Order References / Sizes

Fire barrier curtains

Ref             Width              Fire Rating

TH30/F      1000mm           30 minutes

TH70/F      1000mm           60 minutes

THS60       1300mm           60 minutes


Protection board for chimney areas

Ref                Size

STB/91/T      6mm thick x 1000mm x 1200mm