Floor Insulation

wool floor insulation

Drop In Floor

Terra Lana’s Drop In Floor Insulation is New Zealand’s first BRANZ appraised, high-performance, semi-rigid, fibrous insulation designed to be installed prior to flooring being laid.

under floor wool insulation

Underfloor—Retrofit

Our underfloor insulation is specially designed with a thick top wool layer with a semi-rigid polyester base layer to give rigidity and prevent wind wash. Slabs are installed from below and secured by staples.

Drop In Floor INSULATION

Perfect for new build floor insulaton. Simply drop in from above.

wool floor insulation

Suspended from below

Terra Lana’s Drop In Floor Insulation is extra rigid for friction-fit and is suspended by our proprietary strapping system installed from above before flooring.

drop in floor insulation

Installed from above

No more crawling about under floors. We specifically designed a proprietary system for suspended timber framed floors that allows insulation to be installed from above the floor joists, before the sheet flooring.

under floor wool insulation

Proprietary  Suspension System

Insulation is held firmly in place using our proprietary strapping installation system.

retrofit UnderFloor

 

Wool floor insulation installed from underneath existing floors
under floor wool insulation

Retrofit insulation for existing floors

Terra Lana Underfloor wool insulation is designed to fill existing underfloor cavities with a durable, semi-rigid, high-performance wool composition that is easy to install. The rigid structure prevents sagging, air movement and heat loss through gaps. The wool component transmits moisture vapour away from the building and maintains its effectiveness in humid or damp conditions.

wool insulation for underfloor diagram

Installed from below

Terra Lana Underfloor insulation’s rigidity allows it to be friction-fitted between joists and is stapled through the lower edges onto the joists to prevent dislodging.

drop in floor insulation

Midfloor

Install between floors where an R-Value needs to be achieved (such as above a garage).

Key Product Data

R-VALUE
THICKNESS
CENTRES
BALE CONTAINS
M2/BALE
CODE
RETRO-FIT UNDERFLOOR
R2.0
115mm
450mm
2 x 5.6m x 480mm
5.38 m²
20.115.480
NEW BUILD DROP-IN FLOOR R2.7
R2.7
110mm
400mm
8 x 1.2m x 365mm
3.50 m²
DIF.110.365
NEW BUILD DROP-IN FLOOR R3.2
R3.2
140mm
400mm
8 x 1.2m x 365mm
3.50 m²
DIF.140.365
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Product Data Sheets

View & download a pdf product table and data sheets for all our insulation products

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Installation Guides

View & download the installation guide for all our insulation products

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Specification Table

View & download the Architect specification table sheet

Key Benefits

There are many reasons why we believe our wool insulation is the best choice—find out why

Return your offcuts

As part of our commitment to zero waste, Terra Lana insulation offcuts can be returned to our factory in Christchurch. We recycle offcuts into more insulation.

Sales & Specifications

Contact our team to find out which Terra Lana product is right for your project.