Wool Drop-in Floor Insulation — New Build by Terra Lana

Wool Drop-in Floor Insulation — New Build

Terra Lana

All products

Installed from above prior to sheet flooring

Suspended from below

Insulation held in place with proprietary suspension system

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Description

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.

Insulation is held firmly in place using a proprietary strapping system, and can be installed from above prior to flooring sheet, or suspended from below.

Terra Lana insulation is manufactured from New Zealand wool along with thermal bonding technology using polyester to create a robust, structurally stable product that will never slump nor lose its loft over the lifetime of the building. It comes with a 50 year warranty to meet the durability requirements of the New Zealand Building Code.

	R-value	Thickness	Centres
New Build Drop-in Floor R2.7	R2.7	115mm	450mm
New Build Drop-in Floor R3.2	R3.2	110mm	400mm
see Data Sheet for full information

Key Features

Moisture control — Terra Lana insulation is hygroscopic (can absorb and release moisture vapour) so it can help to mitigate condensation risks and mould formation within buildings whilst still maintaining thermal performance.
Warmth — Wool has a complex natural cellular structure that provides superior warmth in all climates, as it buffers temperature changes. Like wearing wool clothing, it improves the comfort of homes and buildings, requiring less energy to heat or cool them than synthetic insulations
Acoustic — Wool has a natural crimp to its structure, which provides excellent acoustic properties. Testing provided by Marshall Day Labs has proven Terra Lana insulation reduces noise transfer through walls, floors, and ceilings of residential and commercial buildings.
50 year warranty — the combination of New Zealand wool and thermal bonding technology using polyester creates a robust, structurally stable product that will never slump nor lose its loft over the lifetime of the building. Meets the durability requirements of the NZBC.
Local and recyclable — new wool is sourced from local Canterbury farms, and recycled wool from carpet manufacturers' pre-consumer waste. All Terra Lana offcuts can be returned and recycled in their low-carbon manufacturing plant.
Safe — Terra Lana is safe to touch and can be handled without protective clothing, and has negligible VOC emissions
Declare Red List Free — certified toxin free

Ranges

Floor Insulation

Declare LBC Red List Free

NZ Made

Post-Consumer Recyclable Content

Scope of Use

Terra Lana Underfloor Insulation has been appraised as a thermal insulating material for suspended timber-framed floors and timber-framed mid-floors in new domestic and commercial buildings.

Terra Lana Underfloor Insulation is suitable for use under floors which have an enclosed perimeter foundation as defined in NZS 4246. It is also suitable for use where the subfloor area is not enclosed and is subject to wind, such as in open raised floors and pole houses.

Installation options:

Proprietary Suspension System: Insulation is held firmly in place using Terra Lana's proprietary strapping installation system.
Installed from above: No more crawling about under floors — 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.
Suspended from below: Insulation is extra rigid for friction-fit and is suspended by proprietary strapping system installed from above before flooring.

Limitations on Use

Must be installed in accordance with the Installation Guide and Terra Lana technical literature
For existing buildings see Underfloor Insulation — Retrofit
Must be stored under cover and in dry conditions, and in a way that avoids excessive compression

Statement of Building Code Compliance

In the opinion of BRANZ, Terra Lana Wool Insulation, if designed, used, installed and maintained in accordance with the statements and conditions of Appraisal 1164, will meet or contribute to meeting the following provisions of the NZBC:

Clause B2 DURABILITY: Performance B2.3.1 (b) not less than 15 years, B2.3.1 (c) 5 years, and
B2.3.2. Terra Lana Underfloor Insulation meets these requirements.
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Terra Lana Underfloor Insulation meets this requirement.
Clause H1 ENERGY EFFICIENCY: Performance H1.3.1 (a) and H1.3.2 E. Terra Lana Underfloor Insulation contributes to meeting these requirements.

Other Performance Attributes

50 year warranty — Terra Lana wool insulation comes with a 50 year warranty to meet the durability requirements of the New Zealand Building Code. The combination of New Zealand wool and thermal bonding technology using polyester creates a robust, structurally stable product that will never slump nor lose its loft over the lifetime of the building.
Recyclable — As part of Terra Lana's commitment to zero waste, Terra Lana insulation offcuts can be returned to the factory in Christchurch, and are recycled into more insulation.
Declare Red List Free — certified toxin free

BRANZ Appraised

Documents

Wool Insulation Product Data

pdf

Data Sheet: New Build Drop In Floor

pdf

Wool Insulation Specification Table

pdf

BRANZ Appraisal 1164: Terra Lana Underfloor Insulation

1164 [2021]

pdf

Wool Insulation Installation Guides

pdf

Terra Lana Products is located in Christchurch and manufactures an extensive range of innovative wool insulation, acoustic control and landscaping products.

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