Celotex Insulated Plasterboard - PL4040

Best current price£65.40from Brick Superstore
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Celotex Pl4040 Insulated Plasterboard 2400 X 1200 X 52.5Mm Pir
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Best current price£65.40from Brick Superstore
Shopping.co.uk recommended and popular offers
Celotex Pl4040 Insulated Plasterboard 2400 X 1200 X 52.5Mm Pir
Visit shop2 offers from £65.40 - £176.09
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The Celotex PL4040 Insulated Plasterboard is designed for professional contractors and DIY enthusiasts looking to improve thermal efficiency in new builds or renovation projects. By bonding high-performance PIR insulation to 12.5mm plasterboard, it allows users to insulate and finish surfaces in a single application, significantly reducing project timelines. However, users should note that the combined thickness requires careful planning when working around existing window reveals or limited-depth framing.
| Model Part Number | PL4040 |
|---|---|
| Brand | Celotex |
Yes, but ensure you use moisture-resistant finishing techniques and verify that a proper vapor barrier is in place if the wall faces an external cold environment.
The board features a 40mm PIR core plus 12.5mm of plasterboard, totaling 52.5mm in thickness.
While possible, hand tools are recommended to minimize dust. Always wear a mask and eye protection when cutting any insulation material.
Yes, standard gypsum-based board adhesives are generally compatible, but ensure the substrate is prepped properly.
While the primary function is thermal, the mass of the board does provide some secondary sound reduction, though it is not a dedicated acoustic product.
The PL4040 has a thermal conductivity of 0.022 W/mK.
Ensure the boards are tightly butted together and use premium jointing tape and compound over the tapered edges.
Use a straight edge as a guide and a long-bladed insulation knife or fine-tooth handsaw to cut through both the board and the PIR core smoothly.
Verify that your framing centers are consistent and the surface being bonded to is plumb; adjust mechanical fixings if necessary.
Installation can be performed through two primary methods: direct bonding (dot and dab) or mechanical fixing to timber studs or metal frames. For mechanical fixing, use suitable-length screws that penetrate the support structure by at least 25mm. When using adhesive, ensure the substrate is clean and dry. For storage, always keep boards in a dry environment, ideally off the ground to prevent moisture absorption. Avoid walking on the boards or placing heavy loads on them before installation, as the plasterboard facing can crack. Use a fine-toothed saw or a sharp insulation knife to cut the boards to size, ensuring a clean edge for tighter fits.
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