Wall Insulation

wool wall insulation installed in house

Exterior Wall

Our exterior wall insulation is dense, rigid and resilient to slumping. Supplied in standard widths designed to fit between studs spaced at 600mm or 400mm and lengths designed to fit a 2.4m to 2.7m stud height. If stud spacings are variable we can manufacture specific widths.

wool service cavity insulation installed

Service Cavity

Using timber battens installed perpendicular to studs creates a service Service Cavity for plumbing and cabling. While allowing the primary insulation layer to remain uncompromised, it also greatly reduces the thermal bridging area of timbers in exterior walls and provides a further layer of insulation to raise the total R-Value.

drop in floor insulation

Acoustic Interior Wall

CHATTERBLOCK® is our default thermal insulation for interior walls. It provides a strong sound barrier between walls, thanks to wool’s remarkable sound-dampening qualities, as well as excellent thermal insulator properties.

Key Product Data

R-VALUE
THICKNESS
CENTRES
BALE CONTAINS
M2/BALE
CODE
45mm WALL SERVICE CAVITY
R1.2
45mm
600mm
2 x 5m x 570mm
5.70
12.45.570
90mm WALL x 400mm CENTRES
R2.4
90mm
400mm
10 x 1.2m x 360mm
4.32
24.90.360
90mm WALL x 600mm CENTRES
R2.4
90mm
600mm
10 x 1.2m x 560mm
6.72
24.90.560
140mm WALL x 400mm CENTRES
R3.2
140mm
400mm
10 x 1.2m x 360mm
4.32
32.140.360
140mm WALL x 600mm CENTRES
R3.2
140mm
600mm
10 x 1.2m x 560mm
6.72
32.140.560
140mm WALL x 400mm CENTRES
R3.6
140mm
400mm
10 x 1.2m x 360mm
4.32
36.140.360
140mm WALL x 600mm CENTRES
R3.6
140mm
600mm
8 x 1.2m x 560mm
5.38
36.140.560

External Wall Insulation

Designed for 90mm or 140mm external wall studs

Internal Wall Insulation

Chatterblock® Acoustic wool insulation designed for interior 90mm wall studs

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.