Thatchsayf - first fire retardant spray job of 2025

The recent good weather enabled TAS to recently complete their first application of Thatchsayf Fire Retardant spray to a stunning row of three thatched cottages in Elsfield, Oxfordshire.

 Fowler & Sons Master Thatchers carried out the rethatching once Charles Construction finished the refurbishment works. The roof area was approximately 250m².

Thatchsayf is a water-based solution containing fire retardant and intumescent ingredients for the protection of thatched roofing. This environmentally friendly solution is applied externally to the thatch surface and penetrates the stems of the thatch by up to 75mm, forming a thin protective film on the surface of the thatch stems.

 A treated roof will offer protection from a number of fire risks, including sparks, ejected embers, bonfires, Chinese lanterns, fireworks and barbecues. On exposure to these risks, Thatchsayf will ‘foam up’ (intumesce) and form a carbonised char, which binds the thatch stems together, cutting off the supply of oxygen to the fire, delaying the spread of flame and lowering the radiated heat output.

 The application of is undertaken by our fully trained employees using specialist spraying equipment and is normally carried out between April and October.  Once a roof is treated, the homeowner is issued with a Certificate of Completion, which is valid for five years after which re-application is required.

Additional information for Thatchsayf is available on our website www.thatchingadvisoryservice.co.uk or by contacting us on 01297 23671