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Insulated Sandwich Panels - Modular Building Solutions

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FP McCann's precast  sandwich panels provide precast concrete insulated sandwich panels that can be clad with a variety of finishes, eliminating many of the pitfalls associated with traditional building methods.

 

Design & Composition

The panels, constructed off-site, comprise an outer leaf of precast concrete, an insulating layer and an inner leaf of plain grey concrete with a power floated finish. The external skin is connected to and supported off the internal skin using proprietary plastic epoxy ties. The ties have a low thermal conductivity and as such eliminate cold bridging. We can modify the thickness of the insulation in order to accommodate the required U-value. The shape, thickness and size of the concrete can also be made to meet the requirements of the project.

Panels are joined together using a specialized joint fixing system on the inner leaf which ensures maximum strength and airtightness. Each panel slots together, aligning wire loops that protrude from each panel. A steel rod is then fixed through the wire hoops and the joint filled with a thixotropic grout.

 

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Benefits

  • They provide a strong, durable, energy-efficient, fire-resistant composite cladding system
  • All aspects of the production process are undertaken in an off-site factory environment, thereby enabling achievement of the highest possible quality finish
  • Construction is much faster with the ability to adopt ‘just in time’ site delivery and a fully integrated structure and skin system where load-bearing wall panels provide both structural support and external finish, minimising on-site labour cost
  • Prefabricated sandwich panels also eliminate the need for external scaffolding saving the main contractor costs and prelims

Panels can form part of a precast structural frame where the inner leaf is load bearing or may be attached to a steel frame as a cladding panel.

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