Quick view Details 100mm Celotex sku: CLO-50782 100mm - Celotex GA4100 General Purpose PIR Insulation Board - 2400 X 1200 X 100mm MSRP: MSRP: £36.16 ex. VAT Now: £43.39 inc. VAT Choose Options Compare Quick view 100mm Celotex sku: CLO-50782 100mm - Celotex GA4100 General Purpose PIR Insulation Board - 2400 X 1200 X 100mm Celotex GA4000 is a multi-purpose insulation board which can be specified for use in a variety of applications such as pitched roofs, flat roofs, solid masonry walls, floors, timber framed & steel framed systems. It has long been at the heart of the... MSRP: MSRP: £36.16 ex. VAT Now: £43.39 inc. VAT Choose Options Compare Compare Selected Ceiling Supplies Breathing membranes, loft doors, ceiling tiles, and other features complete our selection of ceiling materials and roofing materials that will go great with the insulation products we sell. Pick up everything you'll need to get the job done right with us, from materials to labor. Ceiling panels made of metal studs have been a popular option for plasterboard partition walls for decades. Metal is less expensive than wood and makes it easier to install, fire resistant material that works in conjunction with regular and performance plasterboard in the construction of stud walls.