The thermal behaviour of the Timberworks system is excellent.
The ‘u’ value of a wall or roof, etc, is a measurement of the heat that is lost through that part of the building – the lower the ‘u’ value the better.
The Government has set suggested ‘u’ values for various parts of a building. These ‘u’ values go to make up a coding which will form part of Building Regulations and it is the intention to make coding mandatory in future. The higher the coding, Code 6 being carbon neutral, the more energy efficient the building is.
Our building elements are proving to be better (and in some cases considerably
better) than required, as set out below:

ElementBuilding Regulations Required ‘u’ value ( W/m²K)Timberworks Europe ‘u’ value ( W/m²K)

The system design eliminates the possibility of thermal bridges because there is a continuous unbroken envelope made from the entire thickness of the insulation. This also significantly reduces the risk of surface condensation.

New buildings can last 100’s of years. Bearing in mind the future costs of fossil fuels it is extremely cost effective to incorporate energy efficient technology at the outset. The Timberworks Europe philosophy is to reduce the need for energy by creating a well insulated airtight structure that hardly needs any heating or cooling.

How do you build an extremely energy efficient building?

An insulation thickness of 190mm helps reduce heat loss through the building
envelope. Double-glazed Argon gas filled windows, doors and frames are fitted into wall panels (where possible) in the factory to avoid any heat loss around the edges.
Eliminate thermal bridges.
The system is specifically designed to eliminate any possibility of heat loss across
thermal bridges. Conversely, in warm weather this system helps keep the building cool.
Air tightness.
Timberworks Europe building’s are airtight and are likely to pass air tightness tests the first time. They maintain their air tightness integrity throughout the life of the building as they do not shrink or crack. While the suggested air circulation value of a new house with natural ventilation is 3 times in an hour a recent test carried out on a Timberworks panel house resulted in 1.7 times an hour. Hence Timberworks ThermoLog eco-friendly buildings vent air at half the rate of the current air tightness requirements.

The secret in maximising acoustic performance is ensuring that components are
tightly joined together on site. The finished structure will provide superb protection
from external noise and also excellent internal acoustic privacy.


Timberworks Europe systems incorporate the following specifications to provide a robust and durable structure:

  • Low moisture content in the timber. (14-16%)
  • The panels are wide section making them more resistant to moisture
  • penetration.
  • The entire structure has a vapour barrier installed at the factory.
  • The timber frames are protected by Fermacell/plasterboard on walls and
  • ceilings.
  • Precision manufacturing technology and meticulous quality control.
  • There is a waterproof membrane under every external wall panel:

The Timberworks Europe system includes a strip of impermeable material that is set below the panels to avoid contact with the concrete panel and therefore, entry of moisture. This membrane is also used as waterproof protection in doorways and around window sills.