Every so often, our clients ask us for more detailed information about the products that we use to construct our modular buildings, and for good reason. There is growing awareness as to the dangers of sandwich panels, also known as insulated panels, in regards to the risk of fire. The composition of sandwich panels includes expanded polystyrene which is flammable. Even though the panels are typically cladded with Colourbond or another material, if the core catches alight, the fire can be difficult to detect, contain and extinguish.

BlueSky Modular Buildings are steel framed and insulated with Earthwool® External Wall Glasswool Batts.

The primary reason for using expanded polystyrene in sandwich panels is for the insulation properties, which we simply replace by using R2 Earthwool® External Wall Glasswool Batt. The batts dramatically improve energy efficiency and thermal comfort, keeping occupants cool in summer and warm in winter. Earthwool® is not flammable, as is made with up to 80% recycled glass and with ECOSE® Technology, a sustainable, bio-based binder that contains no added formaldehyde.

We don’t compromise aesthetics – with each Colourbond cladded modular building lined with either Gyprock Plasterboard or Embossed (Polyester) wall coverings. Both internal and external coverings are available in a range of colours.

With climate change causing variable patterns of both extreme cold and hot weather – the ability to remain comfortable in a fully insulated modular building has never been more important. The insulation will reduce the costs of climate control such as airconditioning.

If you have any questions about safety, or special fire protection requirements for your next modular building, please contact us today.

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174 Hartley Road

(02) 4648 3447

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We offer free no-obligation quotes for all portable building projects. We will help you customise the right building to suit your needs.



Monday – Friday: 8:30 AM – 4:00 PM

We may need to conduct a site inspection if an installation location difficult terrain or limited access. If a site inspection is required, we will arrange a suitable time to meet within 24 hours. This will help us cost the project accurately.