Celotex Isover

Internal Floor Insulation

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The primary purpose of an internal floor is to provide acoustic separation for airborne sound between two adjacent rooms within a dwelling, thereby improving the acoustic comfort of those within the dwelling.

These floors are typically constructed using solid timber joists or timber I-beams with a minimum 18mm thick timber floor deck laid above the joists and a plasterboard finish applied below the joists.

The insulation of choice for internal floors is typically a glass mineral wool (GMW) roll or slab. ISOVER products can be installed as part of the internal floor construction between the joists/I-beams to provide the level of sound reduction required according to Approved Document E (England & Wales) and Section 5 (Scotland).