A continuous ‘system’
that delivers on U-values
Protects from the effects
wind driven rain.
A high performance composite
with a lambda value of 0.021W/mK
Built-in Full Fill
Wall Insulation
Built-in Full Fill
Wall Insulation
A Full Range of Innovative
Detailing Accessories
Learn more about
CavityTherm.
See facts & figures on
how CavityTherm performs.
Download CAD files of all
CavityTherms accessories.
Get size and dimension
specifications
Acceptable Details for
Construction (ACDs).
Download BIM objects of all
CavityTherms Accessories.
Watch how
CavityTherm is installed
See photos of how
CavityTherm is installed
Frequently Asked Questions
& Technical Help
Your guide to best practice installation
Avail of our educational resources
With Xtratherm’s Advanced Detailing and engineered jointing of boards the insulation continuity of your project is assured.
Use the filter option to view the ACD Certificates per block weight:
Timber Intermediate Floor
ACD Ref. XT-CTPIR-1.05-Inter-floor-Rev-3
Table D1. 1.05
Y. 0.00
f. 0.98
Masonry Separating Wall (Solid)
ACD Ref. XT-CTPIR-1.06.1-Separating-Wall-Plan-Rev-3
Table D1.
Y. 0.03
f. 0.98
Masonry Separating Wall (Cavity)
ACD Ref. XT-CTPIR-1.06.2-Separating-Wall-Plan-Rev-3
Table D1.
Y. 0.03
f. 0.98
Eaves (Ventilated/Unventilated)
ACD Ref. XT-CTPIR-1.09-1.10-Eaves-Rev-3
Table D1.
Y. 0.06
f. 0.94
Flat Roof - Eaves
ACD Ref. XT-CTPIR-1.19-Flat-Roof-Eaves-Rev-3
Table D1.
Y. 0.03
f. 0.97
Ventilated Roof - Attic Floor Level
ACD Ref. XT-CTPIR-1.15-Attic-Floor-Rev-3
Table D1.
Y. 0.20
f. 0.87
Ope - Perforated Steel Lintel
ACD Ref. XT-CTPIR-1.22-Steel-lintel-Rev-3
Table D1.
Y. 0.04
f. 0.95
Flat Roof - Parapet
ACD Ref. XT-CTPIR-1.20-Flat-Roof-Parapet-Rev-3
Table D1.
Y. 0.21
f. 0.91
Ope - Jamb with Closer Block
ACD Ref. XT-CTPIR-1.24-Jamb-closer-block
Table D1.
Y. 0.03
f. 0.96
Ope - Prestressed Concrete Lintel
ACD Ref. XT-CTPIR-1.23.2-Concrete-lintel-Rev-3
Table D1.
Y. 0.00
f. 0.95
Ope - Jamb with Proprietary Cavity Closer
ACD Ref. XT-CTPIR-1.25-Jamb-cavity-closer-Rev-3
Table D1.
Y. 0.01
f. 0.95
Ope - Concrete Forward Sill
ACD Ref. XT-CTPIR-1.26-Sill
Table D1.
Y. 0.03
f. 0.94
Internal Corner
ACD Ref. XT-CTPIR-1.27.2-Inverted-Corner-Rev-3
Table D1.
Y. -0.06
f. 0.98
External Corner
ACD Ref. XT-CTPIR-1.27.1-Ext-Corner-Rev-3
Table D1.
Y. 0.04
f. 0.96
Ground Floor - Insulation Above Slab
ACD Ref. XT-CTPIR-G.05.1-Separating-Solid-Wall
Table D1.
Y. 0.15
f. 0.94
Ground Floor - Insulation Above Slab
ACD Ref. XT-CTPIR-G.05.2-Separating-Narrow-Wall
Table D1.
Y. 0.16
f. 0.92
Ground Floor - Insulation Above Slab
ACD Ref. XT-CTPIR-1.01b-Wall-floor-Rev-3
Table D1.
Y. 0.06
f. 0.91
Ground Floor - Insulation Above Slab
ACD Ref. XT-CTPIR-1.01a-Wall-floor-Rev-3
Table D1.
Y. 0.17
f. 0.83
Ground Floor - Insulation Below Slab
ACD Ref. XT-CTPIR-1.02a-Wall-floor-Rev-3
Table D1.
Y. 0.17
f. 0.85
Ground Floor - Insulation Below Slab
ACD Ref. XT-CTPIR-1.02b-Wall-floor-Rev-3
Table D1.
Y. 0.08
f. 0.91
Concrete Intermediate Floor within a Dwelling
ACD Ref. XT-CTPIR-1.04-Inter-floor-Rev-3
Table D1.
Y. 0.00
f. 0.98
Concrete Intermediate Floor Between Dwellings
ACD Ref. XT-CTPIR-1.04a-Inter-floor-Rev-3
Table D1.
Y. 0.02
f. 0.98
Timber Intermediate Floor between Dwellings
ACD Ref. XT-CTPIR-1.05a-Inter-floor-Rev-3
Table D1.
Y. 0.02
f. 0.98