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Posts tagged ‘Thatchbatts®’

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U-Values & Condensation in thatch

Thatch Roof Rafters

U-Values & Condensation in thatch
Modern living under thatch has changed in the last 10 to 15 years, with the introduction of modern central heating, double/secondary glazing, power showers and more home owners wanting fully vaulted ceilings. In addition, the requirements and associated recommendations from Building Control and insurance companies see the requirement for fire barriers and increased levels of insulation to be installed within the roof structure.

All these areas can have an effect on the performance of thatched buildings, therefore all components of the roof structure need to be built into U-Value calculations/reports.

U-Values are expressed in units of watts per degree of temperature difference W/m²K. Overall U-Values will vary according to actual thickness and density of the thatch. For example:

  • 300mm thickness of Water Reed – 0.29 W/m²K
  • 300mm thickness of Long Straw – 0.23 W/m²K

For comparison, the standard in Part L of the Building Regulations (2010) for replacement roof insulation at rafter level is 0.18 W/m²K.

A suitable insulation product to help achieve a U-Value of 0.18 would be Thatchbatts® as they are non-combustible, high density slabs which also offer additional protection in terms of fire resistance.

Vapour Control
It is widely accepted in the construction industry that in addition to sufficient levels of insulation, vapour control layers are required to control vapour and reduce the risk of condensation. A correctly fitted vapour check will also play an important part in the way the building continues to perform in the long term.

Bespoke U-Value & Condensation Risk Analysis reports can be generated for thatched roofs and will take into account the design and construction, type of materials used and location within the country.

See the Thatching Advisory Services website for further information and product details.

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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 – 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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Dorset Model – Technical guide to planning requirements for thatched properties.

Dorset Model

Thatch is enjoying a resurgence. Architects, builders and owners increasingly acknowledge the advantage of thatch insulation and aesthetic qualities. Recognising this increasing popularity the eight building control authorities throughout the county of Dorset reviewed current building controls for a thatched roof.

The result of these controls will:

  • Either protect the main structure of the building if a fire occurs.
  • Or provide better protection for the roof members if a fire occurs.
  • Require an acceptance to treat the thatch as sacrificial in a fire.

Companies specialising in thatch roof insurance welcome the “Dorset Model” and recognise that it will reduce the premiums paid.

www.thatchingadvisoryservices.co.uk/Dorset_Model.asp

 

 

 

 

 

 

 

 

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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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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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TAS Thatch Fire Membrane System used on unique thatched building in Merseyside

The Lighthouse

Thatching Advisory Services (TAS) were recently involved in an unusual but unique thatched project in Liverpool.

The Lighthouse in Formby saw the majority of the building, including the sides being completely thatched.

The project saw TAS working closely with the main contractor – Kirklake Developments and D-K Architects to advise on and provide the most suitable and comprehensive fire barrier system for the building.

After consultation and submission of test reports, it was deemed that the newly designed and tested ‘TAS Thatch Fire Membrane System’ would be the most suitable system to use for the project.

The TAS Thatch Fire Membrane System, which incorporates Thatch Firewall Membrane and Thatchbatts®  is tested to BS476: Part 3: 2004 and CEN/TS 1187:2012, test 4, as recommended by Building Control – Approved Document B.

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Thatching Advisory Services presentation to Cheshire Fire and Rescue Service

Cheshire Fire & Rescue Service

Rob Norcott, Director of Thatching Advisory Services, recently gave a joint presentation with HETAS to Cheshire Fire and Rescue Service about the importance of fire safety for thatch roofs.

The presentation, attended by representatives from Cheshire Fire and Rescue Service and the North West regional office of the NFU Mutual, focussed on the common causes of thatch roof fires and the preventative measures and products available.

The attendees were made aware of the issues and contributing factors for thatch fires and the solutions, products and preventative measures available to help reduce the risk in the event of a fire.

The presentation included the use of comprehensive Thatch Fire Protection Systems which are a mix of either TAS100 Thatch Fireboards or Thatch Firewall with our non-combustible Thatchbatt® product.

Rob was also able to explain how the fire retardant spray ‘Thatchsayf’ works by foaming (intumesce) and forming 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.

HETAS are the official body recognised by Government to approve biomass and solid fuel domestic heating appliances, fuels and services.

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Rob Norcott of Thatching Advisory Services writes article for International Fire Fighter.

Rob Norcott of Thatching Advisory Services was invited to write an article for the International Fire Fighter magazine.

The IFF magazine reports world wide to professionals in municipal and industrial fire and rescue services. The magazine is subscribed to across the globe in 36 countries.

The 5 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 and the various systems and preventive measures available.

To read the article in full follow the link below.

www.mdmpublishing.com/mdmmagazines/magazineiff/newsview/1166/thatched-roofs-the-importance-of-separation-in-construction


 

 

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