TAS Thatchsayf

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

On exposure to sparks from chimneys, bonfires or barbeques, Thatchsayf will foam (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.

Thatchsayf is a spray on fire retardant that can be applied to both the interior and exterior of the thatched roof.

Thatchsayf is available as a coloured or clear liquid. If the coloured product is used, it will ‘yellow up’ the colour of the thatch, whilst still retaining a natural look. However, when the coloured Thatchsayf is used on an older roof, it can rejuvenate the appearance of the thatch. Thatchsayf is environmentally acceptable and prevents bacterial and fungal growth.

Once applied, the roof will not need treating for five years.

What are the benefits of Thatchsayf

• Can reduce insurance premiums
• Fire penetration delayed for over 30 minutes
• Can be applied to new or existing thatched roofs
• Contains preservatives
• Retards bacterial and fungal growth inc. moss
• Application by approved Thatchers/Contractors
• Application is fully certified
• Environmentally safe

Thatchsayf Testing

Thatchsayf was tested to BS 476: Part 3 and achieved a Non-flammable classification of EXT.S.BA. This test was completed by the BRE, Watford. A Copy of the test certificate is available upon request. 

Thatchsayf Specification 

• Drying Time              2-5 hrs
• Full Cure                  4 days                                                                   
• Coverage                  0.55ltr per m²
• Non hazardous
• Non toxic

Application

The application of Thatchsayf is undertaken by TAS trained and approved contractors using a high pressure spraying system. This ensures that the correct pressure and coverage is applied to the thatch.

The homeowner or builder will be issued with a Certificate of Completion by TAS. This certificate can then be issued to Architects, Building Control Officers, Insurance Companies etc. as proof that the thatch has been correctly treated with Thatchsayf. Certification is valid for 5 years before re-application is required.

For prices, availability and further information, please contact us on 08455 20 40 60.