Surplus Insulation & Plasterboard

Thermally identical. They just need more cutting, taping and joint-filling on site. Ideal for stud walls, small bays and one-off pattress installations — but for a large uniform area, full boards are quicker and give a better airtightness result.

Yes — surplus is factory-fresh, just over-ordered on the last job. Same BBA certificate, same lambda value (0.022 W/mK), same fire rating. Reject anything with visible water damage, delamination or musty smell.

Recovers fully if it dries within 48 hours. Prolonged saturation permanently reduces R-value and creates a mould risk — dispose of anything that's been wet for a week or more.

Indefinitely if kept in original wrapping, out of direct sun and off wet ground. UV degrades the foil facing over ~6 months of exposure and reduces performance.

Only if the board is genuine fire-line grade (pink face, marked FR on the edge). Standard grey plasterboard is not a fire substitute and cannot be used to meet Building Regs Part B compliance on escape routes or party walls.

Flat on a pallet, kept dry, ideally covered. A Transit fits about 15 sheets flat; a Luton with tail-lift takes 40–60. Stand-up transport cracks the corners and destroys the paper facing.