Service Cavity Insulation

Terra Lana service cavity insulation is designed to fill service cavity spaces, adding R-Value to the thermal envelope, while still allowing the passage of wiring and plumbing services. 

wool service cavity insulation installed

Service Cavity Wall

Our Service Cavity insulation blanket rolls are easily friction-fitted and fixed by staples between cavity battens. It comes in standard widths to fill typical batten voids.

wool ceilin and service cavity insulation

Service Cavity Ceiling

Service Cavity insulation blanket rolls are fixed by staples between cavity battens across ceiling rafters. 

skillion insulation with service cavity insulation layer diagram

Service Cavity Ceiling

Showing service cavity insulation installed across the inside face of ceiling rafters, between service cavity spacers.

Key Product Data

For bulk orders, Terra Lana Service Cavity insulation can be ordered to custom widths.

R-VALUE
THICKNESS
CENTRES
BALE CONTAINS
M2/BALE
CODE
CEILING SERVICE CAVITY
R0.9
35mm
600mm
2 x 6m x 570mm
6.84 m²
09.35.570
CEILING / WALL SERVICE CAVITY
R1.2
45mm
600mm
2 x 5m x 570mm
5.70 m²
12.45.570
CEILING SERVICE CAVITY
R2.4
90mm
600mm
10 x 1.2m x 560mm
6.72 m²
24.90.560
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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

Installation Video

How to calculate and install wall and ceiling Service Cavity insulation.

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.