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Blown Insulation FAQ

Your Comprehensive FAQ Guide to Blown Insulation Solutions in New Zealand.

Safe-R Insulation Auckland – Underfloor Insulation Advice

Safe-R Insulation Auckland can help you choose the right type of underfloor insulation. There are two significant types of floor insulation – foil with an adjacent air cavity and bulk insulation such as blanket or polystyrene insulation.

The underfloor insulation must cover all accessible parts of the floor below the habitable spaces of a dwelling, except where clearances are required – e.g. for pipework – refer to the New Zealand insulation installation standard NZS 4246 for guidance on required clearances. The insulation must be in reasonable condition – damage such as rips, tears, or salt or dust deposits on the shiny face of foil insulation degrades the performance of foil insulation.

Foil Underfloor Insulation

It is common to find damage to underfloor foil insulation. Where existing insulation is damaged, degraded, missing or incomplete, new non-electrically conductive underfloor insulation must be installed with an R-value of at least R 1.3. All insulation retrofitted for compliance with the RTA must also comply with NZS 4246. As of the 1st of July 2016, installing or repairing electrically conductive insulation into rented homes is prohibited under these Regulations.

Bulk Underfloor Insulation

Warmafloor insulation is the blanket type installed by Safe-R Insulation Auckland. Floor blanket insulation does not have the gaps and installation difficulties associated with some polystyrene insulation. Nor does it have a vented cavity often seen with foil (which can virtually negate any insulation R-value). Warmafloor is easy to install and produces great installed R-values. Uninsulated floors have a thermal resistance of R0.6, which can be improved to R1.5 or R1.8 with a Warmafloor insulation blanket system correctly fixed against the floor, between the floor joists (in most buildings with a continuous sub-floor perimeter wall). It also reduces draughts through gaps between uncovered timber polished floors. Warmafloor insulation blanket is unaffected by humidity or water. Even if it is wetted, its thermal insulation resistance will be completely restored, when dried.

Warmafloor does not represent a health risk to installers or occupiers of insulated buildings and does not promote corrosion on metal building components. Contact an authorised Warmafloor Insulation reseller today!