NHB00001133_Emails between Kingspan and NHBC regarding Kooltherm K15 and its use in facades above 18m_0.pdf [pdf]
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NHB00001032_NHBC Use of combustible materials in buildings over 18m - Guidance to builders.pdf [pdf]
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Closing-Statements-11-December-2018.pdf [pdf]
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NHB00000922_Draft letter from NHBC to Kingspan regarding the use of K15 cladding on buildings above 18m._0.pdf [pdf]
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