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Buy SIP Panels | Structural Insulated Panels UK | UltraSIPs

Shop SIP panels 72mm-200mm with Celotex GA4000/XR4000 insulation. Sterling OSB construction. Fast UK delivery. Calculate U-values instantly. Made in UK. 
Our product proudly features Sterling OSB3, known for its exceptional structural strength and superior water resistance. We've paired it with Celotex or an equivalent, leading in thermal insulation with the best lambda U value available, complete with dual foil facers that double as a vapor barrier, simplifying your build by eliminating the need for extra barriers. Reach out to discover more about our high-quality boards and competitive pricing. Let's elevate your project together!

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  • SIP Panel 172mmSIP Panel 172mm
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    ULTRASIPS

    SIP Panel 172mm

    Our SIP panels are manufactured with Sterling OSB3 for proven structural performance and enhanced moisture resistance. Paired with Celotex (or equivalent premium PIR), they deliver excellent thermal performance thanks to low thermal conductivity (λ) and dual foil facers that act as a vapour control...
    From £133.40
    From £133.40
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  • SIP Panel 142mmSIP Panel 142mm
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    ULTRASIPS

    SIP Panel 142mm

    Our SIP panels are manufactured with Sterling OSB3 for proven structural performance and enhanced moisture resistance. Paired with Celotex (or equivalent premium PIR), they deliver excellent thermal performance thanks to low thermal conductivity (λ) and dual foil facers that act as a vapour control...
    From £115.50
    From £115.50
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  • SIP Panel 122mmSIP Panel 122mm
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    ULTRASIPS

    SIP Panel 122mm

    Our SIP panels are manufactured with Sterling OSB3 for proven structural performance and enhanced moisture resistance. Paired with Celotex (or equivalent premium PIR), they deliver excellent thermal performance thanks to low thermal conductivity (λ) and dual foil facers that act as a vapour control...
    From £98.70
    From £98.70
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  • SIP Panel 97mmSIP Panel 97mm
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    ULTRASIPS

    SIP Panel 97mm

    Our SIP panels are manufactured with Sterling OSB3 for proven structural performance and enhanced moisture resistance. Paired with Celotex (or equivalent premium PIR), they deliver excellent thermal performance thanks to low thermal conductivity (λ) and dual foil facers that act as a vapour control...
    From £88.90
    From £88.90
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  • SIP Panel 72mmSIP Panel 72mm
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    ULTRASIPS

    SIP Panel 72mm

    Our SIP panels are manufactured with Sterling OSB3 for proven structural performance and enhanced moisture resistance. Paired with Celotex (or equivalent premium PIR), they deliver excellent thermal performance thanks to low thermal conductivity (λ) and dual foil facers that act as a vapour control...
    From £88.90
    From £88.90
    Choose Options

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