External Walls: Structural Timber Frame

Sheep Wool Insulation can be used to insulate the external walls in a timber frame structure. The insulation is installed between the timber studs and is ideally stapled into place to ensure permanent performance.

This is an important element to insulate as it can account for up to 30% of heat loss from a building. After installing the insulation, the wall can be sealed with a vapour check to improve airtightness.

The depth of insulation used is typically the same as the depth of wall stud. Today, common stud depths are 150mm and 200mm. The greater the stud thickness, the higher thermal performance of that building element. Timber frame external walls will usually require a number of layers to achieve the desired thickness.

Premium insulation rolls are suitable for this application as they can be installed in the vertical walls and stapled into place. For the purpose of these calculations, Premium has been used.

The images below show some examples of this type of application: