New Iso-Bloco filler from ISO-Chemie is said to provide a 'fast and cost effective solution' for new and replacement window installations of all sizes and in all environments. According to ISO-Chemie, it is particularly suitable for window replacements in Scottish dwellings that have no existing cavity closure. The ISO-Bloco Filler provides an external weather-tight seal, giving both a thermal and airtight seal to the existing cavity.
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