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Swedish Timber Framed House Type

ecoadmin, June 22, 2016

Swedish Timber framed house type

Swedish HT IR_0453

Injection of Swedish Timber framed house

Injection of Swedish Timber framed house

Client: City of Edinburgh Council,

Location: Central Belt

Construction: Vertical timber cladding on timber framing with intermediate layer of plasterboard and plasterboard finish internally.

Date of Project: July 2013.


The Client instigated work to eradicate cavity wind noise and improve the thermal efficiency of the property following the tenant’s comments regarding draughts through the structure.

With the Client’s previous knowledge of our services we discussed various options which followed a full survey involving exposing a small area of the cladding to determine the full extent of the timber framed construction. This enabled the most suitable method of installation to be determined which would minimise disruption and avoid internal decoration. It was subsequently decided to inject open cell foam through the external cladding and between the studs, filling the cavity and preventing any loose material from vibrating, at the same time improving the thermal efficiency of the property.

The Client proposed to monitor the overall difference in the performance of the building by installing data monitors to record energy usage and heat loss.

  1. Treatment:

The treatment carried out was specific to this type of property to overcome the particular problems being experienced by the tenant but involved the following work:

Protective sheeting was laid over windows and pathways and services penetrating the framing were masked off prior to treatment. A series of 12mm dia holes were drilled at 600mm centre at the vertical joint of the cladding and open cell breathable foam injected into the void formed by the timber frame. PVC colour matched caps were then inserted into the holes as a temporary measure until the property was externally decorated under part of the Client’s maintenance programme

The tenant remained in occupation during the duration of work which took approximately two days.

  1. Conclusion:

Following assessment of the data monitors it appeared that the Thermal efficiency of the property had improved although the full benefits could not be determined because of the very low heating levels applied. However no further adverse comments were received from the tenant and subsequent independent Thermal imaging proved the extent to which the foam had successfully filled the void and reduced heat loss when compared with an untreated property.

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