Installed on the exterior of a building, masonry wall insulation can improve energy efficiency by delivering excellent thermal performance. It can also enhance outer wall appearance and provide additional benefits, such as moisture resistance. For fire rated insulation slab and boars that knit together to prevent gaps, purchase exterior wall insulation from the range below.

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Kingspan Kooltherm K106 Cavity Board 1200mm x 450mm x 90mm

Kingspan Kooltherm K106 Cavity Board 1200mm x 450mm x 90mm (881334)

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Kingspan Kooltherm K108 Phenolic Cavity Insulation Board 1200mm x 450mm

Kingspan Kooltherm K108 Phenolic Cavity Insulation Board 1200mm x 450mm (9000218731)

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Isover Cavity Wall Insulation Slab 32 1200mm x 455mm

Isover Cavity Wall Insulation Slab 32 1200mm x 455mm (9000229451)

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Xtratherm XT/CW Partial Fill Cavity Wall Board Square Edge 1200mm x 450mm

Xtratherm XT/CW Partial Fill Cavity Wall Board Square Edge 1200mm x 450mm (9000228445)

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Knauf Earthwool DriTherm 34 Super Cavity Insulation Slab 1200mm x 455mm

Knauf Earthwool DriTherm 34 Super Cavity Insulation Slab 1200mm x 455mm (9000229443)

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Isover Cavity Wall Insulation Slab 36 1200mm x 455mm

Isover Cavity Wall Insulation Slab 36 1200mm x 455mm (9000229438)

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ROCKWOOL Partial Fill Cavity Batts 1200mm x 455mm

ROCKWOOL Partial Fill Cavity Batts 1200mm x 455mm (9000229446)

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ROCKWOOL Full Fill Cavity Batts 1200mm x 455mm

ROCKWOOL Full Fill Cavity Batts 1200mm x 455mm (9000229445)

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Celotex GA4000 PIR Insulation Board 2400mm x 1200mm

Celotex GA4000 PIR Insulation Board 2400mm x 1200mm (9000228461)

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Kingspan Insulation Kooltherm K108 Cavity Insulation Board 1200mm x 450mm

Kingspan Insulation Kooltherm K108 Cavity Insulation Board 1200mm x 450mm (9000228450)

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Kingspan Kooltherm K106 Cavity Insulation Board 1200mm x 450mm

Kingspan Kooltherm K106 Cavity Insulation Board 1200mm x 450mm (9000228447)

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Kingspan Kooltherm K108 Cavity Insulation Board 1200mm x 450mm

Kingspan Kooltherm K108 Cavity Insulation Board 1200mm x 450mm (9000101565)

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Knauf Earthwool DriTherm 37 Standard Cavity Insulation Slab 1200mm x 455mm

Knauf Earthwool DriTherm 37 Standard Cavity Insulation Slab 1200mm x 455mm (9000229442)

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