EXPOL Masonry Wall InsulationThermal Performance, MoistureProtection & Interior Comfort
Solid masonry and concrete-block walls offer strength and durability, but without insulation they can transfer heat rapidly — losing warmth in winter and allowing heat to penetrate in summer. EXPOL masonry wall insulation systems use rigid EPS and XPS boards to add thermal resistance, manage moisture and condensation risk, and improve acoustic comfort, transforming solid walls into more energy-efficient and comfortable building envelopes.
EXPOL Platinum Board (graphite-infused EPS) is designed for interior applications, delivering higher R-values relative to thickness — ideal where space is limited or retrofit upgrades are required. For exterior-facing or below-grade walls exposed to moisture, EXPOL-X (extruded polystyrene) provides superior water resistance and high compressive strength, offering a durable insulation layer behind claddings or waterproofing systems. FastLine is designed for insulation of masonry block and tilt slab walls eliminating thermal bridging, graphite infused Expanded Polystyrene Board.
Lightweight and easy to handle, panels can be cut to size on site and installed between timber strapping or fixed externally behind cladding systems. Additional components such as EXPOL WireGuard help protect electrical cabling, while Styro-FIX Construction Adhesive ensures strong, reliable bonding across masonry substrates.
Masonry Wall Insulation - Product Range
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Installation & System Components
When insulating masonry walls the insulation should be cut accurately to create a neat fit between the timber batons or strapping. It is also important to make sure that the insulation is maximized by using the correct thickness; this is determined by the thickness of the timber batons or strapping. The panels can be spot glued in place until the lining materials are fixed.
Care should be taken to ensure that there is no contact between the polystyrene and any electrical wiring.
Key Benefits
Why choose EXPOL Masonry Wall Insulation for your project
High Performance
Solid insulation solutions for both interior and exterior applications
Moisture Protection
Superior resistance to water ingress in challenging conditions
Versatile Applications
Suitable for all types of masonry wall construction
Easy Installation
Designed for efficient installation in masonry wall systems