Insulation & Membranes
357 sources in the library on insulation & membranes, 40 on this page cited in a published note. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 3 of 9.
- supplier figure RN-A6F1GF cited
Builder Depot
Builder Depot's product page for a 150 mm EcoTherm Eco-Versal PIR board (thermal conductivity 0.022 W/mK), at £78.58 including VAT, or £27.29 per m².
Cited in PIR vs Mineral Wool Insulation Compared.
- supplier figure RN-T4LR8Q cited
Building Materials (buildingmaterials.co.uk)
Building Materials product page for a 45 m² pallet of Fermacell 2E22 25 mm gypsum fibre flooring overlay boards, with pallet prices excluding and including VAT. It settles the supply price per square metre of a dry floor element.
Cited in Acoustic Insulation for Floors & Walls.
- supplier figure RN-Q0X1Q7 cited
EcoTherm Insulation (Kingspan Insulation Ltd)
Thermal laminate: PIR core bonded to 12.5 mm Gyproc Type A plasterboard to EN 13950: 2014. Insulation core lambda 0.022 W/mK; plasterboard component lambda 0.19 W/mK. Product thicknesses 37.5 to 82.5 mm (25 to 70 mm of insulation plus 12.5 mm board). Published R-values and typical U-values on a 215 mm dense blockwork wall with 10 mm polymer render: 25 mm insulation R 1.10, U 0.57 battens / 0.56 dot and dab; 30 mm R 1.35, 0.51 / 0.50; 40 mm R 1.80, 0.42 / 0.40; 50 mm R 2.25, 0.36 / 0.34; 60 mm R 2.70, 0.32 / 0.30; 70 mm R 3.15, 0.28 / 0.26 W/m2K. Fire: Eco-Liner achieves European Classification (Euroclass) B-s1,d0 when classified to BS EN 13501-1: 2018, supported by test reports WF 546613 (EN 13823) and WF 516756 (EN ISO 11925-2).
- supplier figure RN-J2DJG9 cited
Forterra
Thermalite Shield Block 3.6. Compressive strength 3.6 N/mm2, design lambda 0.15 W/mK, dry density 600 kg/m3, face size 440 x 215 mm, height 215 mm, length 440 mm. Widths and weights: 50 mm 3.8 kg, 75 mm 5.7 kg, 100 mm 7.6 kg, 140 mm 10.6 kg, 150 mm 11.3 kg, 200 mm 15.1 kg, 215 mm 16.3 kg. Weights are quoted at a typical as-received moisture content of 23%, with moisture equilibrium about 3% protected and 5% exposed. Used for external walls, foundations, partitions and separating walls.
- supplier figure RN-5V98H2 cited
H+H UK
Celcon Solar Grade aircrete block. Compressive strength 2.9 N/mm2, thermal conductivity 0.11 W/mK, dry density 460 kg/m3. This is the lowest lambda block in the Celcon range and is the one specified where the inner leaf has to carry the U-value. Page links the Solar Grade 2023 datasheet, the Celcon Blocks 2023 datasheet and pack information.
- supplier figure RN-5KTFKZ cited
H+H UK
Celcon Standard Grade aircrete block, product code S. Compressive strength 3.6 N/mm2, thermal conductivity 0.15 W/mK, dry density 600 kg/m3. UKCA marked with separate certificates by product and thickness, including SCP100, SCP140, SCP150, SRC075, SRC100, SRC140, SRC150 and SRC215, so the range runs from a 75 mm to a 215 mm block. Supporting technical data sheets on the page cover fire resistance (TSD01), masonry movement (TSD02), characteristic strength of masonry (TSD03), U-values (TSD04, July 2026), fixings (TSD20), block weights (TSD43), external render (TSD45), sound and Robust Details (TSD57) and mortar yields (TSD62). BBA certificate 01/3816 Sheet 1.
Cited in Lintels Explained: Steel, Concrete & Stone, Mortar Mix Ratios & Types: Which Mix for What.
- supplier figure RN-YT4PGV cited
Hörmann UK
Hörmann UK's campaign page for its RenoMatic insulated 42 mm sectional garage door. It gives a from-price of £1,847 with the ProMatic operator, stated as a recommended retail price excluding VAT and fitting, for listed campaign sizes.
Cited in Garage Doors: Types & Cost, How to Insulate Garage.
- supplier figure RN-PNXMUC cited
Insulation Bee
Insulation Bee's product page for 100 mm Ravatherm XPS X 300 SL gives a price of £64.75 including VAT for a four-board pack covering 3 m2. A specialist insulation retailer is used because no merchant product page with a readable XPS price was found.
Cited in EPS vs XPS Insulation: Which & Where.
- supplier figure RN-73N13X cited
Insulation Hub
A merchant product page for 100 mm Knauf DriTherm 32 cavity slab; settles the retail price of £46.99 including VAT for a 3.28 m² pack, about £14.33/m².
- supplier figure RN-MJCI81 cited
Insulation Hub
A merchant product page for 100 mm Knauf DriTherm 37 cavity slab; settles the retail price of £39.99 including VAT for a 6.55 m² pack, about £6.11/m².
- supplier figure RN-1W7QAX cited
Insulation UK
Insulation UK product page for a single 25 mm Fermacell 2E22 dry screed overlay board covering 0.75 m², with its price excluding and including VAT. It settles the supply price per square metre of the board bought singly.
Cited in Acoustic Insulation for Floors & Walls.
- supplier figure RN-IU37A5 cited
Insulation UK
A UK insulation merchant's product page for Knauf Rocksilk RS60 stone wool slab, 50 mm, 1200 x 600 mm, sold in packs of nine, with its price including VAT.
- supplier figure RN-KTJGCG cited
Kingspan Insulation
A manufacturer product page for a 300 kPa XPS board. It lists inverted roofs and basements as its uses and notes minimal water absorption and resistance to ground moisture.
Cited in EPS vs XPS Insulation: Which & Where.
- supplier figure RN-I1EE5H cited
Kingspan Insulation
Rigid thermoset phenolic (PF) board to BS EN 13166: 2012 + A2: 2016, faced both sides with a low emissivity composite foil. Declared thermal conductivity 0.019 W/mK. Declared compressive strength 100 kPa to BS EN 826: 2013. Standard board 2.4 m x 1.2 m. BBA Certificate 16/5299 covers thicknesses 25 to 150 mm, made at Pembridge, Herefordshire. Published R-values (m2K/W): 25 mm 1.30, 40 mm 2.10, 50 mm 2.60, 60 mm 3.15, 70 mm 3.65, 75 mm 3.90, 80 mm 4.20, 90 mm 4.70, 100 mm 5.25, 110 mm 5.75. Fire: under System 4 AVCP, K107 has a Euroclass rating of F.
- supplier figure RN-WLLQP4 cited
Kingspan Insulation
The maker's product brochure for Kooltherm K108 cavity board, hosted on Kingspan's document store. It states that the Kooltherm core is a fibre-free rigid thermoset phenolic insulant, with a thermal conductivity of 0.019 W/mK.
- supplier figure RN-H5T8VH cited
Kingspan Insulation
Kingspan's product brochure for its phenolic external wall board, linked from its product page. Its U-value table for brickwork with 10 mm polymer render gives 0.29 W/m²K for 60 mm on 215 mm brick.
Cited in Solid Wall Insulation: IWI vs EWI.
- supplier figure RN-F2PHW0 cited
Kingspan Insulation
Kingspan product page for a phenolic Kooltherm board. It gives a thermal conductivity of 0.019 W/mK, against 0.022 W/mK for Kingspan's PIR boards.
- supplier figure RN-Z0970N cited
Kingspan Insulation
Kingspan's GB page for its Therma range. It states that Therma boards have a rigid thermoset PIR core with a declared thermal conductivity of 0.022 to 0.027 W/mK.
- supplier figure RN-OZHXNY cited
Kingspan Insulation
Kingspan's product page for Thermapitch TP10, a PIR board for pitched roofs between and over rafters, with its declared thermal conductivity of 0.022 W/mK.
- supplier figure RN-G818Z5 cited
Kingspan Insulation
Kingspan product page for Thermawall TW50. It confirms it is a PIR cavity wall board at 0.022 W/mK that keeps a clear cavity.
- supplier figure RN-8V7SJM cited
Knauf Insulation
Manufacturer chart giving the full-fill thickness of a 0.032 W/mK glass wool slab needed for each target wall U-value by block type: 100 mm gives 0.23 with aircrete and 0.28 with dense block; 0.18 needs 150-160 mm.
Cited in Bricks Per 1000 Cost: 2026 UK Price Guide, Cavity Wall Insulation Materials Compared.
- supplier figure RN-RPMRGR cited
Knauf Insulation
Knauf Insulation data sheet for its glass mineral wool timber-frame rolls: lambda 0.032 to 0.040 W/mK, Euroclass A1, for friction fitting between timber studs.
Cited in PIR vs Mineral Wool Insulation Compared.
- supplier figure RN-8A9HMC cited
Knauf Insulation
Knauf Insulation, which makes both glass and rock mineral wool, compares the two and states that rock mineral wool has the higher melting point.
- supplier figure RN-FJKGZZ cited
Knauf Insulation
Knauf Insulation's product page for Loft Roll 44, a glass mineral wool loft roll with a thermal conductivity of 0.044 W/mK, the upper end of the glass wool range quoted.
Cited in PIR vs Mineral Wool Insulation Compared.
- supplier figure RN-NUJR3G cited
Knauf Insulation
Knauf Insulation's datasheet for Supafil 40, a BBA-certified glass mineral blowing wool for full-fill masonry cavity walls, showing that blown cavity wool is not only stone wool.
- supplier figure RN-2DAE36 cited
Lawsons (Whetstone) Ltd
the retail price Lawsons (Whetstone) Ltd publishes for PIR Insulation, which is the supply figure the cost book records for this item
Cited in How to Insulate Garage.
- supplier figure RN-THVER4 cited
Lime Green Products
The maker's U-value sheet for its Warmshell woodfibre internal insulation. On a 215 mm brick wall it gives 1.67 uninsulated with lime plaster and 0.32 W/m²K with 100 mm of Warmshell.
Cited in Solid Wall Insulation: IWI vs EWI.
- supplier figure RN-E3Q1F1 cited
Materials Market
A building materials retailer's product page for a pack of three 100 mm Kooltherm K107 phenolic boards. It prices them at £45.70 per m2 including VAT; no national DIY chain lists the product.
- supplier figure RN-0FWWD1 cited
pro clima
The manufacturer's explanation of humidity-variable vapour control membranes. It gives the published sd range of the Intello range: above 25 m in winter and below 0.25 m in summer.
- supplier figure RN-JPL213 cited
Ravago Building Solutions (hosted by Quantum Insulation)
A manufacturer data sheet for a standard 300 kPa XPS board. It declares long-term water absorption by immersion below 0.7% by volume, and Euroclass E reaction to fire.
Cited in EPS vs XPS Insulation: Which & Where.
- supplier figure RN-J2R75J cited
ROCKWOOL Ltd
Rockwool UK's datasheet for its Flexi stone wool slab. It lists the Robust Details separating wall constructions that use it: E-WT-1 and E-WT-2 (twin timber frame) and E-WS-1 (twin steel frame).
- supplier figure RN-4A34DN cited
ROCKWOOL Ltd
Rockwool UK's datasheet for its general-purpose stone wool slabs. It gives nominal densities (RWA45 45 kg/m3, RW3 60 kg/m3), declared thermal conductivities, Euroclass A1 and resistance to temperatures over 1,000°C.
Cited in Acoustic Insulation for Floors & Walls, Rockwool vs Other Mineral Wool: Which to Use.
- supplier figure RN-0HD8KX cited
ROCKWOOL Ltd
Rockwool UK's safe use instruction sheet for its stone wool insulation. It covers the fibres' bio-solubility and CLP status and the protective equipment recommended when handling and cutting.
- supplier figure RN-B4UQMJ cited
ROCKWOOL Ltd
ROCKWOOL UK's guide to mineral wool states that glass wool melts at around 600°C while stone wool withstands fire temperatures above 1,000°C; the note attributes the glass wool figure to Rockwool.
- supplier figure RN-V7B28C cited
ROCKWOOL UK
ROCKWOOL UK's page on non-combustible stone wool: its products are classified A1 or A2-s1,d0 under the Euroclass system, depending on the product.
Cited in PIR vs Mineral Wool Insulation Compared.
- supplier figure RN-RX7GPZ cited
ROCKWOOL UK
ROCKWOOL's UK product page for its Twin Roll stone wool loft roll. It declares a thermal conductivity of 0.044 W/mK, the same as standard glass wool loft roll, so equal thicknesses perform alike.
- supplier figure RN-TY312I cited
Selco Builders Warehouse
Selco product page for DECKfon 26 mm acoustic tongue-and-groove chipboard, a soundproofing overlay deck for timber floors, sold in 2400 x 600 mm sheets at £32.71 including VAT.
Cited in Acoustic Insulation for Floors & Walls.
- supplier figure RN-EEYIWR cited
Selco Builders Warehouse
Selco's product page for a 2400 x 1200 mm sheet of 52.5 mm PIR-backed plasterboard. It gives the price of £98.60 including VAT, about £34 per square metre.
- supplier figure RN-MBVS6T cited
Selco Builders Warehouse
the retail price Selco Builders Warehouse publishes for Jabfloor 70 Floor Insulation 2400 x 1200 x 100mm, which is the supply figure the cost book records for this item
Cited in EPS vs XPS Insulation: Which & Where, Floor Insulation Materials & Build-ups.
- supplier figure RN-NUGC4A cited
Selco Builders Warehouse
Selco's retail product page for a pack of 100 mm Rockwool RWA45 stone wool slabs covering 2.88 m², priced per pack with and without VAT.