Description
StyroTherm XPS 40mm Slab Insulation — Balanced Multi-Residential Thermal Barrier
StyroTherm XPS 40mm is an industry-grade extruded polystyrene insulation board. It targets projects demanding intermediate thermal protection without excessive bulk. Consequently, this rigid foam board delivers a robust R1.29 rating while maintaining a highly practical physical profile. Leading builders select this profile for continuous multi-residential floor assemblies across Victoria. Therefore, it serves as an excellent upgrade from thinner alternatives when building modern energy-efficient structures.
Superior Resistance Under Heavy Horizontal Pours
This 40mm slab insulation board offers a reliable compressive strength range of 250kPa to 350kPa. Standard lower-density foam alternatives often compress or fail under heavy concrete weight. In contrast, extruded polystyrene handles structural loading effortlessly due to its uniform closed-cell matrix. This structural integrity makes the 40mm profile ideal for horizontal placement underneath residential garage slabs and outdoor pathways. Specifically, it prevents localized sinking or cracking during the concrete curing phase. Furthermore, it completely stops dampness from rising through the ground into the building slab.
Key Structural Applications for 40mm XPS Foam:
- Multi-Residential Flooring: Offers balanced thermal performance for medium-density living zones.
- Garage Slab Base: Protects cold vehicle floors from constant external temperature fluctuations.
- Radiant Heat Preparation: Creates a solid, insulated sub-base beneath basic underfloor heating tubes.
Eco-Friendly Compliance and Structural Integrity
We manufacture this Australian-made 40mm rigid insulation board with zero ozone-depleting substances. For instance, the production line eliminates harmful CFCs or HCFCs entirely. Additionally, users can fully recycle the material at the end of its long service life. It complies perfectly with the energy efficiency targets outlined in the National Construction Code (NCC). In short, choosing the 40mm profile ensures long-lasting thermal stability and moisture protection.
See our full slab insulation range in our online store.
📞 Call us on 03 8339 7111 to confirm stock or ask about lead times
Pickup location: 56 Yellowbox Drive, Craigieburn VIC
🕒 Business hours: Mon–Thurs 6:30am–4:00pm | Fri 6:30am–3:00pm
🚚 Delivery is also available across Melbourne during business hours
