EXPOL-X for Masonry Wall Insulation

Often used in applications that are subject to pressure and moisture, EXPOL-X is a high performing extruded polystyrene insulation product.

When used in masonry wall cavities, it improves the long-term thermal performance of a building and ensures moisture cannot transfer from external masonry walls to internal linings.

 

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IDEAL USES

MASONRY WALLS

A rigid foam polystyrene board, EXPOL-X provides solid insulation for exterior masonry walls.  EXPOL-X exhibits excellent water tightness qualities making it ideal for exterior applications and is available in full sheets (2500mm x 600mm). For interior applications, choose EXPOL Platinum Board.

For insulation on the exterior side of masonry walls, see our EXPOL-X Retaining wall solution

OTHER APPLICATIONS

EXPOL-X is also used in other applications where compressive strength, water resistance and superior R-value are required.  This includes under concrete floors, perimeter insulation on concrete edges, in cladding systems and in retaining walls.

MORE ABOUT EXPOL-X

EXPOL-X polystyrene insulation sheets are highly water resistant and provide an extremely high insulation value.  The durable nature of extruded polystyrene ensures that the R-value of the material is retained for the life of the building.

A thin, lightweight insulation board, EXPOL-X is preferred by installers because it is easy to handle and quick to install. Specifiers looking for a product that offers excellent performance for a range of uses in diverse climate conditions turn to EXPOL-X.  

SYSTEM COMPONENTS

WIRE GUARD

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EXPOL Wireguard is a waxed paper strip for separating exposed electrical cables from EXPOL insulation.  An important part of the system, EXPOL Wireguard prevents the degrading effect that EPS can sometimes have on electrical cables over a prolonged period. 

CONSTRUCTION ADHESIVE 

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EXPOL supplies a water-based glue to adhere polystyrene to most surfaces. EXPOL-X cladding insulation is glued in place using this adhesive or can be used in combination with other fixing methods. 

HOW MUCH DO I NEED

CHOOSING THE RIGHT PRODUCT

EXPOL-X comes in one size; 2500mm x 600mm wide.  

CALCULATING HOW MUCH PRODUCT YOU NEED

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INSTALLATION INSTRUCTIONS

EXPOL makes insulating easy.  To ensure you get the best result, follow these simple steps.

Installing EXPOL-X

To install EXPOL-X, first ensure sheets are cut accurately to create a snug fit between timber batons or strapping. 

Spot glue EXPOL-X to hold sheets in place until lining materials are fixed.  Care should be taken to ensure there is no contact between EPS boards and electrical wiring.

See our Masterspec document for further information.

Technical information

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FREQUENTLY ASKED QUESTIONS

Can EXPOL-X be used for interior applications?

Because of its superior water tightness, EXPOL-X is normally used for exterior applications.  EXPOL Platinum Board is designed for interior applications and also achieves a superior R-value for thermal insulation.

Is EXPOL-X durable?

The closed cell structure of EXPOL-X gives it resistance to moisture and compression, ensuring that insulation performance will last the lifespan of the building.  Extruded polystyrene insulation (XPS) is often used under roads, rail tracks and other load-bearing applications.

What size does EXPOL-X come in?

EXPOL-X comes in 2500mm x 600mm sheets, with varying thicknesses available.

How does EXPOL-X compare to EPS insulation boards?

When used as interior insulation, EXPOL-X provides greater R-value and compressive strength than EPS insulation boards.  

How does EXPOL-X contribute to a building’s energy efficiency?

EXPOL-X demonstrates excellent thermal insulation properties when used in hot or cold climates.  The insulation helps maintain a more constant indoor temperature reducing the consumption of energy used for cooling or heating. 

WHERE TO BUY

EXPOL products are available at a number of leading building products stores. Find your nearest stockist here.

View Expol Distributors in a larger map

Other Masonry Wall products which may be of interest

EXPOL Interior Platinum Board

Fast Facts
  • Exhibiting superior water and moisture resistance properties, EXPOL-X is an ideal choice for masonry wall insulation.
  • Extruded polystyrene insulation is a simple and effective way to prevent heat loss from a building’s walls.
  • Choose EXPOL-X to reduce the consumption of energy used for cooling and heating buildings.
  • A rigid foam insulation board, EXPOL-X does not settle over time, thus ensuring the R-value for the life of the building.

R-Value Calculator

Sheet Calculator

Area to be insulated

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General
Enquiry Form

General Enquiry

Tel: +64 (9) 634 3449

Free Phone: 0800 86 33 73

sales@expol.co.nz

105 Captain Springs Rd., Onehunga, Auckland

Tel: +64 (9) 634 3449

Free Phone: 0800 86 33 73

sales@expol.co.nz

105 Captain Springs Rd., Onehunga, Auckland

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