Rental Homes

All residential rental homes in New Zealand will be required to have insulation installed to ceilings and underfloors by 1st July, 2019.

The insulation must comply with the Residential Tenancies Act 1986 (RTA) and the Residential Tenancies Regulations 2016.

What and When by?

From 1st July, 2016

  • Any new insulation installed into rented homes from this date must meet or exceed the higher requirements for newly installed insulation.
  • All Landlords must declare the extent of insulation in their rental properties on new Tenancy Agreements from this date.

From 1st July, 2019

  • Privately owned rented homes must have insulation which meets or exceeds the minimum requirements

Free Inspections

We offer free inspections, competitive rates and we can liaise with your tenants to take all the hassle out of the process for you. After installation, we will provide you with a certificate of compliance.

Ring now on 07-846 0141 or email

Ceiling insulation – What’s required?

Areas of older ceiling insulation that are less than 70mm thick require upgrading in accordance with the retrofit requirements.

There must be no visible gaps between the insulation and the edge of the framing or between pieces of insulation.  Gaps must be filled by replacing old insulation back in place or filling the gaps with new insulation which meets the new requirements.

Exemptions: An experienced installer of insulation cannot access the ceiling without substantial building work; or causing substantial damage to the premises.  Or, installing insulation to the ceiling would create risk to the health and safety of any person that are greater than the risks that are normally acceptable when insulation us being installed by an experienced professional installer. Skillion roofs and very low-pitched roofs are deemed as an exemption.

Underfloor Insulation – What’s required?

The underfloor insulation must cover all accessible parts of the floor below the habitable spaces of the dwelling, except where clearances are required. Refer to the NZ Insulation Installation Standard NZS 4246:2016 for guidance on required clearances.

Existing 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.

It is common to find damage to underfloor foil insulation.  Where existing insulation is damaged, degraded, missing or incomplete, new non-electrically conductive insulation must be installed with an R Rating of at least R1.3 from 1.7.2016.

Leave it to the Experts, we provide a free inspection on all rental properties in the Waikato.