Product category:
Materials
News Release from: Natural Building Technologies | Subject: The environmental story
Edited by the Buildingtalk Editorial
Team on 15 April 2005
The environmental story - a Case Study
How two new storeys were added on to a bungalow in an environmentally sensitive way.
A 1930's Park Street Bungalow was extended upwards to give an extra storey plus a loft bedroom using a timber frame shell resting on the existing structural brickwork The materials and construction methods were environmentally sound, with products made from sustainable, natural resources and the finish had to be visually acceptable and in keeping with other properties in the vicinity
This article was originally published on Buildingtalk on 13 Jun 2003 at 8.00am (UK)
Related stories
NBT Launches New Coloured Earth
With a range of ecologically sound self-coloured clay plasters NBT has introduced two separate ranges of self-coloured, high performance, clay-based top-coat plasters.
How To Be Sarkey And Get Away With It
Natural Building Technologies, specialises in ecological building materials and introduces Isolair, a robust, interlocking, water-resistant sarking board with excellent thermal insulation properties.
NBT's (Natural Building Technology's) Diffutherm and Isolair woodfibre boards were used to clad the walls and roof as they have an exceptional ecological profile, consisting almost entirely of waste pine wood.
The boards contain no artificial glue or resins, are extremely vapour open and have excellent moisture regulating properties.
The renders were mineral based, vapour open and use sustainable resources.
These products were complimented by the use of natural flax insulation which was used as the fill between the timber studs.
The Isolair boards were used as sarking and resulted in a high performance warm roof design with a U-value of 0.2W/m2k.
The walls were designed to a U-value of 0.25W/m2K.
Together, these give both thermal performance and thermal storage, making the building warm in winter and cool in summer.
The Diffutherm and Isolair boards also provide excellent acoustic insulation.
Used as part of a "Vapour open" system the building exhibits sophisticated moisture control without the problems that can be associated with cavities and micro-climates Using a timber frame meant the extension was economical and fast to build, and the interlocking insulation boards complimented this in terms of speed of build.
Once watertight, the internal finishes were started while work continued outside.
This dry construction technique meant that there was virtually no condensation or problems associated with the building "drying out" - such as shrinkage and cracking.
• Natural Building Technologies: contact details and other news
• Email this article to a colleague
• Register for the free Buildingtalk email newsletter
• Buildingtalk Home Page
Search the Pro-Talk network of sites
