Insulation & Membranes
347 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-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-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-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-B3Z3CL cited
Screwfix
the retail price Screwfix publishes for essentials economy pipe insulation 15mm x 13mm x 1m, which is the supply figure the cost book records for this item
Cited in How to Box In Pipes & Boilers.
- 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.
- supplier figure RN-YH7TV9 cited
SOPREMA UK (Celotex)
Manufacturer product page for the CW4000 partial-fill cavity board. It gives nominal board dimensions of 1200 x 450 mm.
- supplier figure RN-VU7PFR cited
SOPREMA UK (Celotex)
Manufacturer product page on the Celotex site, now run by SOPREMA UK. It confirms GA4000 is now sold as SOPRATHERM GA4000.
Cited in Kingspan & Celotex PIR Boards: Sizes & Cost, PIR vs Mineral Wool Insulation Compared.
- supplier figure RN-5EVKJ2 cited
SOPREMA UK (Celotex)
PIR insulation board with aluminium foil facings on both sides, boards 2400 x 1200 mm. Declared thermal conductivity (lambda D) 0.022 W/mK. Thickness range 50 mm to 100 mm. Compressive strength 140 kPa. BBA Certificate 25/7318 covers pitched roof, dry lining and floor insulation. Fire: SOPRATHERM GA4000 achieves a reaction to fire classification of Euroclass F in accordance with BS EN 13501-1.
Cited in External Wall Insulation (EWI) Systems & Finishes, Floor Insulation Materials & Build-ups, Loft Insulation Guide: Types, Costs & Recommended Depth.
- supplier figure RN-BIRHMA cited
SOPREMA UK (Celotex)
SOPREMA's product page for SOPRATHERM PL4000, the former Celotex PL4000 insulated plasterboard. It gives a PIR core of 0.022 W/mK bonded to 12.5 mm tapered edge plasterboard.
- supplier figure RN-5SDEMT cited
SOPREMA UK (Celotex)
Thermal laminate: rigid PIR core bonded to 12.5 mm tapered edge plasterboard, boards 2400 x 1200 mm. Declared thermal conductivity of the PIR core 0.022 W/mK. Overall thickness range 37.5 mm to 77.5 mm (PIR 25 mm to 65 mm plus 12.5 mm board). BBA Certificate 25/7366 for internal wall dry lining and pitched roof ceiling applications. Fire: SOPRATHERM PL4000 achieves a reaction to fire classification of Euroclass B-s1, d0 in accordance with BS EN 13501-1.