Within the in situ post-insulation of cavity walls, insulation is inserted in the cavity through holes made in the outer leaf or inner leaf. This technique diminishes heat losses through the cavity walls of the house. It is a suitable technique for energetically renovating an existing house.
To diminish the risks, installers need to apply the technique in conformity with the conditions of STS 71-1, established by FPS Economy. BCCA has developed a quality framework on the basis of these STS.
Nevertheless, installers and house owners need to be aware that certain side effects can appear when using this post-insulation technique.
CCA has developed a quality framework for the post-insulation of cavity walls with a nominal cavity width of at least 50mm. The framework fits in the STS 71-1, published by FPS Economy. Installers can obtain an ATG-certificate from BCCA with which they can show they are capable of working in conformity with the conditions of the STS 71-1 and actually do so.
De website of BCCA lists all certified installers. Each certificate is unequivocally linked to the usage of a certain product or system.
In the Flemish Region, the Vlaams Energie- en Klimaatagentschap VEKA grants subsidies for post-insulation of cavity walls if the installers can proof they did the work in conformity with the guidelines of the STS 71-1.
Within the quality framework, BCCA performs regular checks at random, so the installers can keep their ATG-certificate. The checks take place at the office of the installer as well as on site during the execution of the works. In this respect, the installers need to register each individual work into a database.
The regular checks at random augment the trustworthiness of the products and works that need to comply with certain requirements, without making statements about the overall quality of particular individual works or specific insulation productions.
The installer, the Architect (when implicated) and the homeowner always stay responsible for each and every individual work, as defined within the agreement between those parties.
Do you still have questions about our activities or the checks related to our quality frameworks?
Are you active in the construction sector and would you like to join the quality framework post-insulation of cavity walls?
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