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    Plasterboard Types — Quick Reference

    Plasterboard Types — Quick ReferenceSiteKiln

    Types at a Glance

    TypeColourThicknessUse
    Standard / WallboardIvory12.5 / 15mmGeneral walls and ceilings
    Moisture ResistantGreen12.5 / 15mmBathrooms, kitchens, wet areas
    Fire Resistant (Fireline)Pink12.5 / 15mmFire-rated walls, garages, protected routes
    Acoustic (SoundBloc)Blue12.5 / 15mmParty walls, sound insulation
    Thermal LaminateIvory + insulation27–80mm+Insulating cold external walls
    Duplex (foil-backed)Ivory + foil12.5mmVapour control on warm side
    Impact ResistantGrey / off-white12.5 / 15mmHigh-traffic, heavy fixings
    Multi-performanceBlue + green12.5 / 15mmAcoustic + moisture + fire

    Fixing Centres

    Walls (timber frame)600mm
    Ceilings (12.5mm board)450mm
    Ceilings (15mm board)600mm

    Key Points

    • • Pink board in garages is building regs — 30-minute fire resistance
    • • Green board behind tiles in bathrooms — standard board will fail over time
    • • Colour coding is industry-standard across manufacturers
    • • Thermal laminate boards count towards your U-value calculation
    • • Foil-backed (duplex) acts as vapour barrier — face foil towards the warm side
    • • Impact-resistant boards take direct screw fixings for heavy items
    • • For fire-rated assemblies, use the exact specification in the fire test certificate

    SiteKiln provides general guidance only. This is not legal, tax, financial or professional advice. Always verify information and seek professional advice if unsure. © SiteKiln 2026

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