IJM Timber Frame Ecology

Climate change is being caused by the emissions for Greenhouse Gases and since 1997 and the Kyoto accord building regulations have been tightening up on new construction through higher fabric insulation.

However it is also recognised that Embodied Energy used in the construction process is also contributing to this climate change and as such the BRE has published a number of Green guides rating Timber Frame Construction as an A Standard.

All IJM Timber is sourced from managed forests and IJM are registered under the Program for the Endorsement of Forest Certification schemes (PEFC).


All external wall timbers & exposed items are treated with preservative.

All timbers designated for external use are pressure impregnated in house by IJM.

The main preservative used by IJM Timber Engineering is derived from plant extract.

Apart from exposure to moisture, the main risk of attack is from fungal decay and insect attack.

Preservatives used offer low acute toxicity and low environmental impact. ‘They do not contain organic biocides or heavy metals and as it is applied as an aqueous solution, does not use organic solvents.

Fire Performance

All buildings regardless of the method of construction must meet the minimum fire performance criteria as laid down in the building regulations. Research has shown that the method of construction does not contribute to the fire in itself as in the case of timber frame 30minute or 60 minute fire resistance is readily achieved through the appropriate application of plasterboard.

In addition research has indicated that there are no known cases of fatalities where in the very rare occurrence (0.07%) that a fire has broken out in the cavity.

Timber also has the added advantage as a building materials as it is predictable in fire as it does not warp or distort and has low heat conduction and can not ignite until temperatures at its surface exceed 400 Degrees Celsius (Behind Plasterboard Linings)


Over the past 75 years, timber framed housing has formed a substantial proportion of the Scottish construction market but a much smaller proportion in England and Wales and to some degree Ireland.

Building regulations are requiring increased thermal standards, and all forms of construction are having to adjust.

Skills shortages and increasing demands for reduced construction times on site are leading both to improved forms of traditional construction and to an increase in prefabrication mostly based, to date, on timber and steel framing techniques.


Sustainability, Carbon Footprint, Building Fabric, Energy Sources, Energy Outputs & Losses, Renewable Energy Resources and Recovery Systems.

Carbon Footprint

The Carbon footprint of a house measures the amount of Carbon actually used to build the house. Whilst Steel and Concrete by their nature have high Carbon Footprints, Timber on the other hand absorbs and stores Carbon during its growth to maturity and continues to retain the stored Carbon once it is incorporated into a timber structure.


Green Building Digest Magazine

Building Green Magazine

Green Home Building Magazine

Green Builder Magazine

Eco-Building Pulse Magazine

IJM Timber Frame Carbon Footprint


If you have a question or enquiry, please contact us at and we will always be delighted to help!

With our wide range of experience and knowledge, IJM are happy to design and build any timber products you may desire