100mm insulation boards
100mm insulation boards for sale on Ireland's largest auction and classifieds sites
Celotex kingspan pir - celotex, - £770.00
2400 1200mm kingspan • Celotex recticel ecotherm • Multiple thickness - Free postage - New and Used
2400 1200mm kingspan • Celotex recticel ecotherm • Multiple thickness - Free postage - New and Used
Celotex kingspan 2400mm - kingspan, - £116.00
25mm 50mm 75mm • 100mm celotex kingspan • Recticel similar your - Free postage - New and Used
25mm 50mm 75mm • 100mm celotex kingspan • Recticel similar your - Free postage - New and Used
Celotex kingspan pir - kingspan, - £29.03
Celotex kingspan pir • Insulation boards are • Materials suitable various - Free postage - New and Used
Celotex kingspan pir • Insulation boards are • Materials suitable various - Free postage - New and Used
Tile backer cement coated - tile, - £4.99
These boards are • Constructed high compression • Super insulated core - Free postage - New and Used
These boards are • Constructed high compression • Super insulated core - Free postage - New and Used
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Celotex kingspan pir - kingspan, - £504.00
2400 1200mm kingspan • Celotex recticel ecotherm • Multiple thickness - Free postage - New and Used
2400 1200mm kingspan • Celotex recticel ecotherm • Multiple thickness - Free postage - New and Used
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48 listings · from £3.83 · avg £160.61
⚠️ These listings were last updated more than 100 days ago.
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Browse 48 100mm insulation boards listings currently in our index. Prices range from £3.83 to £849, with an average of £160.61. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 100mm insulation boards →
Unused insulation boards - £21.50
Over ordered boards • Have them shop • Price - Free postage - New and Used
Over ordered boards • Have them shop • Price - Free postage - New and Used
Pir insulation boards 2400 - pir, - £849.00
Cfc hcfc free • Zero ozone depletion • Opd - Free postage - New and Used
Cfc hcfc free • Zero ozone depletion • Opd - Free postage - New and Used
White foam packing sheets all - foam, - £98.00
Man isle white • Wight channel islands • See map above - Free postage - New and Used
Man isle white • Wight channel islands • See map above - Free postage - New and Used
Celotex kingspan pir - celotex, - £192.00
2400 1200mm kingspan • Celotex recticel ecotherm • Iko multiple quantities - Free postage - New and Used
2400 1200mm kingspan • Celotex recticel ecotherm • Iko multiple quantities - Free postage - New and Used
Kingspan thermawall multi - kingspan, - £37.99
Can also used • Floor wall roof • Applied below suspended - Free postage - New and Used
Can also used • Floor wall roof • Applied below suspended - Free postage - New and Used
Kingspan ecotherm celotex - /, - £38.50
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Pir insulation foil backed - foil, - £44.00
Pir insulation boards • 2400mm 1200mm 100mm • Will monitor this - Free postage - New and Used
Pir insulation boards • 2400mm 1200mm 100mm • Will monitor this - Free postage - New and Used
Xtratherm kingspan celotex - /, / - £55.00
Celotex kingspan xtratherm • Insulation board suitable • Use either between - Free postage - New and Used
Celotex kingspan xtratherm • Insulation board suitable • Use either between - Free postage - New and Used
100mm insulation boards - £26.70
2400 1200mm 100mm • Kingspan 35per sheet • Available around sheets - Free postage - New and Used
2400 1200mm 100mm • Kingspan 35per sheet • Available around sheets - Free postage - New and Used
Celotex kingspan recticel - /, - £31.90
Pir insulation board • Application floor walls • Roofs - Free postage - New and Used
Pir insulation board • Application floor walls • Roofs - Free postage - New and Used
Celotex recticel pir - celotex, - £21.50
Enhance energy efficiency • Your property these • High quality celotex - Free postage - New and Used
Enhance energy efficiency • Your property these • High quality celotex - Free postage - New and Used
100mm insulation - x, 90/100mm - £336.00
Pir insulation boards • 1.2 2.0 - Free postage - New and Used
Pir insulation boards • 1.2 2.0 - Free postage - New and Used
Celotex kingspan ecotherm - celotex, / - £41.50
2400 1200mm celotex • Kingspan recticel ecotherm • Multiple thickness this - Free postage - New and Used
2400 1200mm celotex • Kingspan recticel ecotherm • Multiple thickness this - Free postage - New and Used
Pir insulation board 2400 - insulation, - £49.00
2400mm 1200mm iko • Enertherm insulation boards • Are available several - Free postage - New and Used
2400mm 1200mm iko • Enertherm insulation boards • Are available several - Free postage - New and Used
Expanded polystyrene eps70 - polystyrene, - £99.00
Ideal all types • Construction self building • Projects polystyrene sheets - Free postage - New and Used
Ideal all types • Construction self building • Projects polystyrene sheets - Free postage - New and Used
100mm celotex kingspan - 100mm, - £428.00
Celotex kingspan ecotherm • Equivalent insulation 2400 • 1200 100mm multiple - Free postage - New and Used
Celotex kingspan ecotherm • Equivalent insulation 2400 • 1200 100mm multiple - Free postage - New and Used
Rockwool rwa45 acoustic sound - rwa45, - £275.20
Rockwool rwa45 has • Been developed thermal • Acoustic fire performance - Free postage - New and Used
Rockwool rwa45 has • Been developed thermal • Acoustic fire performance - Free postage - New and Used
10mm 150mm ceresit - to, - £67.50
Ceresit grey polystyrene • Graphite eps board • Ewi item details - Free postage - New and Used
Ceresit grey polystyrene • Graphite eps board • Ewi item details - Free postage - New and Used
Expanded polystyrene sheets - polystyrene, - £361.00
Free samples grades • Can dispatched you • Inspection comparison 1200 - Free postage - New and Used
Free samples grades • Can dispatched you • Inspection comparison 1200 - Free postage - New and Used
Tile backer board pack ten - board, of - £4.99
Tile backer boards • Are ideal two • Reasons excellent waterproofing - Free postage - New and Used
Tile backer boards • Are ideal two • Reasons excellent waterproofing - Free postage - New and Used
Cavity boards 1200mm 450mm - cavity, x - £44.99
- Free postage - New and Used
- Free postage - New and Used
100 ctp nail - x, fixings - £34.38
Example your insulation • Board 70mm thick • Then choose 100mm - Free postage - New and Used
Example your insulation • Board 70mm thick • Then choose 100mm - Free postage - New and Used
Polystyrene sheets eps foam - polystyrene, - £168.00
4ft 2ft 1200mm • 600mm ideal forloft • Insulation shed lining - Free postage - New and Used
4ft 2ft 1200mm • 600mm ideal forloft • Insulation shed lining - Free postage - New and Used
Celotex kingspan pir - celotex, - £37.10
Thickness 100mm board • 2400 1200mm 8ft • 4ft loft insulation - Free postage - New and Used
Thickness 100mm board • 2400 1200mm 8ft • 4ft loft insulation - Free postage - New and Used
50mm 60mm 75mm 100mm - , thickness - £16.85
Thickness options 50mm • 60mm 75mm 100mm • This insulation board - Free postage - New and Used
Thickness options 50mm • 60mm 75mm 100mm • This insulation board - Free postage - New and Used
Celotex seconds insulation - celotex, - £27.60
Celotex seconds 100mm • 200 plus boards • Available - Free postage - New and Used
Celotex seconds 100mm • 200 plus boards • Available - Free postage - New and Used
100 ctp nail fixings - x, 'nail - £36.20
Example your insulation • Board 70mm thick • Then choose 100mm - Free postage - New and Used
Example your insulation • Board 70mm thick • Then choose 100mm - Free postage - New and Used
Rockwool external wall dual - wall, - £27.44
Rockwool external wall • Dual density slabs • Are high qualitymineral - Free postage - New and Used
Rockwool external wall • Dual density slabs • Are high qualitymineral - Free postage - New and Used
Celotex kingspan pir - /, - £65.00
Board suitable use • Either between studs • Insulated sheathing hhigh - Free postage - New and Used
Board suitable use • Either between studs • Insulated sheathing hhigh - Free postage - New and Used
100mm celotex pir boards - pir, - £540.00
Product 2400x1200x100mm celotex • Equivalent pir thermal • Boards sheet deal - Free postage - New and Used
Product 2400x1200x100mm celotex • Equivalent pir thermal • Boards sheet deal - Free postage - New and Used
Kingspan kooltherm external - kooltherm, k5 - £36.00
Kingspan kooltherm external • Wall board apremium • Performance phenolic insulation - Free postage - New and Used
Kingspan kooltherm external • Wall board apremium • Performance phenolic insulation - Free postage - New and Used
Roof insulation board pir - insulation, - £55.96
Manufactured from rigid • Polyisocyanurate pir maximum • Insulation efficiency compatible - Free postage - New and Used
Manufactured from rigid • Polyisocyanurate pir maximum • Insulation efficiency compatible - Free postage - New and Used
Celotex recticel pir - celotex, - £379.33
Which multi purpose • Insulation board developed • Provide simple solutions - Free postage - New and Used
Which multi purpose • Insulation board developed • Provide simple solutions - Free postage - New and Used
Celotex kingspan insulation - celotex, - £240.00
Celotex kingspan tp10 • Similar 100mm foil • Faced urethane insulation - Free postage - New and Used
Celotex kingspan tp10 • Similar 100mm foil • Faced urethane insulation - Free postage - New and Used
Bakelite phenolic resin sheet - resin, - £3.83
- Free postage - New and Used
- Free postage - New and Used
Mold heat insulation board - mold, - £7.50
Excellent insulation performance • Not easy burn • High temperature resistance - Free postage - New and Used
Excellent insulation performance • Not easy burn • High temperature resistance - Free postage - New and Used
Polystyrene insulation eps70 - polystyrene, - £155.00
Ideal all types • Construction self building • Projects your order - Free postage - New and Used
Ideal all types • Construction self building • Projects your order - Free postage - New and Used
Foamglas cellular glass - t3+, - £120.00
Foamglas ready comprises • Slab impervious water • Vapour radon protection - Free postage - New and Used
Foamglas ready comprises • Slab impervious water • Vapour radon protection - Free postage - New and Used
KINGSPAN/RECTICEL/CELOTEX - £450.00
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Board suitable use • Either between studs • Insulated sheathing flooring - Free postage - New and Used
Calcium silicate board - board, heat - £12.90
Various sized offcuts • Available calcium silicate • Insulation board very - Free postage - New and Used
Various sized offcuts • Available calcium silicate • Insulation board very - Free postage - New and Used
Rockwool rwa45 acoustic - rockwool, - £61.95
Rockwool rwa45 general • Building slab use • Acoustic thermal fire - Free postage - New and Used
Rockwool rwa45 general • Building slab use • Acoustic thermal fire - Free postage - New and Used
8x4 pir insulation board - pir, - £668.00
Will celotex kingspan • Iko recticel similar • Specification insulation board - Free postage - New and Used
Will celotex kingspan • Iko recticel similar • Specification insulation board - Free postage - New and Used
Cavity wall boards - wall, - £18.99
Will celotex kingspan • Iko recticel similar • Specification insulation board - Free postage - New and Used
Will celotex kingspan • Iko recticel similar • Specification insulation board - Free postage - New and Used
Try this: slate roof | insulation 100mm | drainage gully | cavity insulation | copper coil | plaster angle bead | rodding point | insulation boards 25mm | tyvek sheet | insulated board
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Everything you need to know about 100mm insulation boards
Whether you are looking for a brand-new or second-hand 100mm insulation boards, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.83, while premium listings can reach £849 — giving you a wide budget spread to work with. The average price of £160.61 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.