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Do you need to leave a cavity when using Kingspan Insulation products in cavity wall?

April 26, 2017cavity insulation kingspan leave products wall

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Do you need to leave a cavity when using Kingspan Insulation products in cavity wall?

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Yes, when using Kingspan insulation product within a cavity wall you do need to leave a gap. A 25 mm residual cavity width maybe suitable for building heights up to 12 metres, however the Kingspan Kooltherm K8 Cavity Board and Kingspan Thermawall TW50 must be installed in accordance with BBA certificate number 94/2992 and 94/3047 respectively. In addition where housing warranty providers (e.g. NHBC, Zurich) are involved, the residual cavity typically needs to be minimum 50 mm residual.