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Project Overview

Construction

Occupancy

Behavioural models

Demand

Renewable technologies

Conclusion

Team

Acknowledgements

Constructions

Wall Construction

The four wall constructions we have modeled in our project are:

  1. Brettstapel
  2. Timber frame
  3. Cavity wall
  4. SIPs

Brettstapel

Generally, Brettstapel is a mass timber construction without making use of any nails or glue. In fact, the softwood timber posts are connected with dowels. Although currently it is manufactured in Austria, Germany, Switzerland and Norway, we have chosen this construction because of its innovative characteristic. The absence of materials such as glues makes the indoor environment healthier.

diagonal dowels brettstapel construction






Images from the company Sohm HolzBautechnik

It should also be mentioned that Acharacle Primary School, in Scotland, was the first building with this construction

More specifically, for the under examination house, we have used the following structure for the walls:

brettstapel construction

U values (horiz/upward/downward heat flow)= 0.143 0.144 0.143 (partition) 0.141


Timber Frame

timber frame construction

U values (horiz/upward/downward heat flow)= 0.145 0.145 0.144 (partition) 0.143


Cavity Wall

cavity wall construction

U values (horiz/upward/downward heat flow)= 0.148 0.148 0.147 (partition) 0.146


Structural Insulated Panels (SIPs)

SIPs construction

U values (horiz/upward/downward heat flow)= 0.138 0.138 0.137 (partition) 0.136


It has to be mentioned, that the windows were triple glazed filled with argon with a U-Value of 1.26W/mK