DCT GA 250 CO2


DCT GA 250 CO2 extruded polystyrene (XPS) general application board provides excellent performance in roof, wall and floor in both commercial and residential applications.

The DCT GA 250 CO2 XPS boards are rot proof, stable and durable and will have a life equivalent to that of the structure in which they are incorporated.

DCT GA 250 CO2 offers top performance with regards to thermal insulation, maintaining this characteristic under extreme conditions of compression, humidity and temperature. The exceptional compressive strength enables it to easily resist several tons/m² downward pressure.

Exceptional Strength

Proven long term performance
High resistance to settlement and compaction
Dimensional and edge profile stability

Excellent moisture performance
(closed cell structure)

Very high resistance to moisture penetration
Low vapour permeability
High resistance to freeze thaw cycles
Durability provides long term retention of these properties

Superior thermal resistance

Low thermal conductivity
Thinner boards required compared to some traditional materials

Health and Safety

CFC, HFC and HCFC free formulation
Zero ozone depletion potential (ODP)
Green Star Compliance
Non-irritant, light and easy to handle
Clean, easy cutting, robust and inherent weather
Specially designed tongue and grooved edge
profiles to facilitate rapid and robust installation
Manufactured in accordance with
EN 13164 : 2001, Section 4.2 and the
relevant parts of Section 4.3

Installation details
Application specific. Contact DCTech for details

Condensation Statement

There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation. It is highly recommended that designers undertake a condensation risk analysis.


Download or print DCT GA 300 Data Sheet

DCT GA 300 tongue and grooved board


Specification Clause

DCT GA 250 extruded polystyrene general application board should be described in the specification as:-
The insulation shall be DCT GA 250 CO2______mm non-porous cellular extruded polystyrene (XPS) foam panel with minimum compressive strength 250 kPa. Zero ODP, CFC, HFC and HCFC free. DCT GA 250 CO2 extruded polystyrene general application board is distributed by Dynamic Composite Technologies -

T: 1800 051 100.

 Technical Data

Product Name: DCT GA 250 CO2
Extruded polystyrene XPS rigid thermal insulation
Product Description: Non-porous, closed cell, high performance extruded polystyrene general application insulation board for use in floor, wall and roof applications.
Composition and Surface finish: Closed cell extruded polystyrene, surface skin
Product Code: DCT GA 250 CO2
Colour: Gold
Edge Profile: Tongue and grooved on all edges
Width: 600mm
Length: 2500mm
Thicknesses available: 25, 30, 35, 40, 50, 60, 75, 80, 90, 100 and 120mm
Compressive Strength: >250kPa
Thermal Conductivity - EN12667 0.033 W/mk @ 10 º C
Water vapour resistivity: 350-950 MNs/gm
Water absorption: 0.07 mm/mk 
Fire Classification EN 13501>AS 1530.3 E


Nominal Thickness to R-Value
DCT GA 250 CO2 @ 10°C
Nominal Thickness
R Value
30 0.9
40 1.2
50 1.5
60 1.8
75 2.3
80 2.4
90 2.7
100 3.0
120 3.6

Delivery, handling and storage
DCT GA 250 CO2 insulation boards are delivered shrinkwrapped. DCT GA 250 CO2 is light, rigid and clean and pleasant to handle and install. It is easily cut to size or trimmed using a knife or saw.

DCT GA 250 CO2 should be stored flat in a ventilated area and protected from accidental damage, contact with volatile solvents, flames and extended exposure to UV and sunlight.

Download or print DCT GA 300 Data Sheet  












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