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Posts tagged ‘thatchfiresafety’

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Fire retardants for thatched roofs

Statistically homes with a thatched roof are no more likely to catch fire than those with a conventional tile or slate roof and nationally represents a small percentage of house fires.

However, the results can be devastating and losses can be extremely high as many thatched properties are listed which invariably leads to higher repair costs. Thatch roofs are designed to repel water making them more difficult to extinguish, which can result in increased damage to the entire property.

There are many measures to reduce the risk of fire one of which is treating the roof with a fire retardant spray.

Which retardant?

A water-based solution of fire retardant and intumescent chemicals in a polymer emulsion binder specifically formulated for the protection of thatch roofing. It should be environmentally friendly with no detrimental effect to plants or animals and of course have no adverse reaction to the thatch.

Fire retardants for thatched roofs should not contain any borates or borate-based additives.

Application

Fire retardant sprays should be applied by trained personnel using high-pressure specialist equipment to treat not only the thatch surface but also the thatch stems to ensure a degree of protection for a number of years.

All too often fire retardants are applied to just the outer surface of the roof (often with a garden-type sprayer) only for them to ‘run-off’ due to the liquid repelling nature of the thatch.

The application should be carried out at a certain pressure using a specific tip spraying upwards into the thatch coat work at the angle of the roof ensuring penetration of between 50mm and 75mm.  This will ensure the fire retardant is applied to both the surface and thatch stems.  On an older roof or specific types of thatch, the pressure can be reduced.

When to apply?

There should be no rain for a minimum of four hours prior to applying a fire retardant, ideally the roof needs to have been exposed to direct sunlight for two hours prior to the application.

Due to the high levels of moisture in the air during the winter months the application is normally carried out between the end of March and at the very latest, depending on the long-range forecast, the end of October. After this time, the damp conditions can slow the curing process and leave the roof more vulnerable to the risk of a rain shower during this time.

Why treat a roof?

The latest report from fire investigators, Burgoynes revealed that out of the 103 thatch fires they investigated between December 2008 and July 2013, the most common cause identified was an ejected ember (64), with the next being a chimney fire (11).

http://www.burgoynes.com/fires-thatched-buildings

Which product?

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 and will also form a thin protective film on the surface of the thatch stems.

On exposure to heat, Thatchsayf will foam (intumesce) and form a carbonised char, binding the thatch stems together, cutting off the supply of oxygen to the fire and delaying the spread of flame and lowering the radiated heat output.

Thatchsayf is environmentally friendly, can help prevent bacterial and fungal growth and has no detrimental effect on the thatch.

What are the benefits?

  • Reduced insurance premiums
  • Fire penetration delayed for over 30 minutes
  • Can be applied to new or existing thatched roofs
  • Prevents bacterial and fungal growth inc. moss
  • Application is fully certified

A roof treated with Thatchsayf will offer protection from a number of fire risks, including sparks, ejected embers, bonfires, Chinese Lanterns, fireworks and barbecues.

Thatchsayf is tested to BS476: part 3: 2004 and achieved the designation of EXT.S.BA.

Once a roof is treated, the homeowner will be issued with a Certificate of Completion, which 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.

Many specialist thatch insurance recognise the application of Thatchsayf and will offer a reduction in premiums to those taking a pro-active approach in reducing the risk of fire.

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

A typical roof should take no more than a day to treat and will dry within 3-4 hours.

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Thatching Advisory Services – New Website

Thatched cliff-top shelter overlooking Seaton beach

Thatching Advisory Services (TAS) recently launched it’s new website. The new site contains the latest information on fire protection as well as comprehensive advice on buying, owning and maintaining thatched properties. There is a new section devoted to new builds and extensions which includes detailed information on roof construction and the latest building regulations.

There is comprehensive information on all our products and systems and a new facility to buy the products via our online shop.

Have a look around the site and feel free to contact us with feedback or if you have any further questions or queries.

www.thatchingadvisoryservices.co.uk

 

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Thatchsayf – Thatched Cottage

Thatched Cottage - front

Thatching Advisory Services, whilst taking advantage of the recent warm weather, continued their busy schedule of treating thatched roofs with Thatchsayf fire retardant with a comprehensive application carried out to the roof of the Thatched Cottage  in Shedfield, Hampshire.

The 220m² roof was treated with clear Thatchsayf.

For further details about Thatchsayf fire retardant, please give us a call on 08455 204060.

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Thatchsayf – Stream Cottage

 

 

 

 

 

 

 

 

 

 

 

 

Thatching Advisory Services recently completed the application of Thatchsayf fire retardant to Stream Cottage in Glynde, East Sussex.

The Grade II listed cottage is one of the oldest in the Glynde parish, dating back to 1556.

Prior to the new thatch, the roof structure also had TAS100 Thatch Fireboards and Thatchbatts® installed.

The 127m² roof was thatched by Gavin MacDonald Master Thatcher

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Thatchsayf – Bilbrook Cottage

Bilbrook Cottage - front

Thatching Advisory Services have been out and about recently treating a number of thatched roofs with their fire retardant – Thatchsayf.

Mid-July saw Gary go off to Portadown in Northern Ireland where Master Thatchers (North) Ltd recently completed a full re-thatch of the roof at Bilbrook Cottage.

The cottage, which is one of Portadown’s oldest – dating back to 1642 – was extensively damaged by fire in April 2013.

The cottage also had TAS100 Thatch Fireboards and Thatchbatts® installed prior to the thatching taking place.

The 230m² roof was treated with clear Thatchsayf.

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TAS asked to write for Listed Property Owners Club Magazine

Rob Norcott of Thatching Advisory Services was asked by Listed Property Owners’ Club Ltd.  to write an article for latest magazine.

Listed Heritage Magazine is published by the Listed Property Owners’ Club for their members. This is a full colour, perfectly bound A4 production; it is published bi-monthly and distributed to 19,000 listed property owners. The Listed Heritage Magazine includes amongst other things: suppliers directory, members letters, shopping pages, events and properties for sale.

The 4 page piece was centered around the importance of separation in construction on thatched roofs. The article also takes you through common causes of thatch fires, from old or faulty electrical systems through to bonfires or fireworks. It also discusses the various systems and preventive measures available such as Thatch Fire Board System, Thatch Fire Wall System; the use of Thatchbatts® and the Thatchsayf spray.

To see the full article click the link below:

TAS article for Listed Heritage – Issue 95

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Thatchbatt® The Real Thing!! from Thatching Advisory Services.

---- Imitation Flyer - April 2014.

TAS has recently embarked on a campaign to highlight the authenticity of one its products – Thatchbatts® and has sent out information highlighting the levels of testing and approvals that the product has gone through.

In summary, when specifying a non-combustible insulation product for a thatched roof, this needs to been done on a like for like basis and therefore careful consideration should be given to the specification. Thatchbatts® are a vital component of both the TAS-Thatch Firewall & TAS-Fireboard systems.

For more information about Thatchbatts® or other Thatch Fire Barriers, please contact Thatching Advisory Services on 08455 20 40 60.

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TAS – The Thatch Alert Chimney Monitor System

Listed Heritage Front Cover Issue 93 ...

Thatching Advisory Services Thatch Alert Chimney Monitor System.

Our system was chosen to be included in the Listed Heritage Shopping section of The Listed Property Owners Club Magazine.

Listed Heritage Magazine is a high quality magazine which is distributed to 19,000 listed property club members.

The Thatch Alert Chimney Monitor System has been specifically designed to monitor the temperature of the chimney brickwork at the point where it meets the thatch. The system acts as an early warning device to inform the home owner of potential high temperatures.

Thatching Advisory Services Thatch Alert Chimney Monitor
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Grant Batchelor at Heritage Skills Hub; Thatching Advisory Services Products; advice available.

Grant Batchelor Master Thatcher recently demonstrated the art of thatching at Heritage Skills Hub Event at the NEC Birmingham.

Grant was one of the Heritage Skills Hub members that promoted traditional building crafts and skills,training and courses this weekend.

Grant also discussed the fire safety products available for thatched properties including  TAS100 Thatch Fireboards, Thatch Firewall membrane and Thatchbatts® – all available from  Thatching Advisory Services.

Visitors also had the chance to ask about our Thatchsayf fire retardant spray as Grant is a fully trained approved sprayer.

Click the link below to find out more about the Heritage Hub skills and what they do.

www.heritageskillshub.org/

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Thatching Advisory Services to Attend National Society of Master Thatchers AGM

 

 

Thatching Advisory Services will be attending

The National Society Of Master Thatchers Annual Conference and AGM.

Entitled ‘For the Good of Thatch’

Friday 14th to Sunday 16th March 2014

 

It is to held at The Norfolk Arms Hotel, Arundel in West Sussex.

The agenda will include discussions on: The Thatch Mark Standard, Chimney safety and Fire barriers and insulation.

 

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