The best insulation panels, compared.
Top pick: Szfanyangxuan 5 mm foam roll Best value: Fabian Clarke 5 m radiator foil – About £14.99, score 72 and 4.5 from 2,196 reviews. A reflector for a cold outside wall, not a board. Updated 23 October 2026.
Insulation panels are sheets, rolls or tiles sold to slow heat loss or to cut echo. You buy one in the UK for a radiator on a cold outside wall, a shed or summerhouse lining, a room that sounds live, or a vehicle panel. The listing title often uses insulation for all of those jobs. They are not substitutes. A rigid board, a metallised bubble or foam roll, an open-cell acoustic tile, a dense polyester tile and a heavy butyl mat fail in different ways. You tell a suitable one by the job, a thickness you can check against the gap, the area the pack covers, and whether adhesive or tools are in the box. A thin retail sheet is not a new wall, roof or floor. In England, Approved Document L sets maximum U-values for new fabric in existing dwellings. Scotland, Wales and Northern Ireland use their own documents. How to separate those families before you rank them is set out in the [insulation panels buying guide](/hub/diy-supplies/insulation-panels/sub/insulation-panels-buying-guide).
Insulation panels are sheets, rolls or tiles sold to slow heat loss or to cut echo. You buy one in the UK for a radiator on a cold outside wall, a shed or summerhouse lining, a room that sounds live, or a vehicle panel.
42 products checked · 64 hrs invested · +18,600 readers
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Personal buying guide
Question 1 of 2
What are you trying to line?
Szfanyangxuan’s self-adhesive polyethylene and foil roll is 5 m × 40 cm × 5 mm, about 2 m², at £19.79. The seller states a lambda at or below 0.033 W/(m·K) to ISO 8301:1991 at 25°C, and the captured listing has no test report. The title says flame retardant and does not name a Euroclass. The star line is 4.8 from only 10 ratings, which looks strong and is a thin sample. Four United Kingdom reviews in the file cover a van, a log cabin still in early days, and a loft hatch, and none describe a long-term result. The score of 60 is held down for that reason. It is a thin lining, not the 25 mm board.
Pros
Cons
Best for: You want a 5 mm self-adhesive trial on a van panel or a loft hatch and you accept a tiny review sample.
Less suitable: You want a radiator roll with hundreds of reviews, or a rigid board.
Specifications
Common questions
What lambda does the seller state?
At or below 0.033 W/(m·K) to ISO 8301:1991 at 25°C. No test report is in the captured listing.
Is it flame retardant as a certified class?
The title says flame retardant. The file does not name a Euroclass.
Where did the United Kingdom reviews use it?
A van, a log cabin still in early days, and a loft hatch. Four reviews are in the file.
The 10 m Fabian Clarke roll covers a stated 6 m² at 10 m × 0.6 m for £17.99, which is more wall for a small extra outlay next to the 5 m roll. The listing says 4 mm thermal bubble foil, country of origin United Kingdom, and 4.6 from 380 amazon.co.uk reviews. Reviewers put it behind radiators on outside walls, and one buyer fixed a piece under a radiator shelf. Sticky strips are in the box, but several United Kingdom reviews say they ran out and bought more. A minority report no change in how the room feels. There is still no lambda. The score of 74 sits slightly above the shorter roll because of coverage and the star line, and it remains a foil rather than a wall lining.
Pros
Cons
Best for: You are covering the main radiators in a house and about 3 m² will not be enough.
Less suitable: You only have one or two radiators, or the gap behind the bracket is tighter than the stated 4 mm.
Specifications
Common questions
How much wall does 10 m cover?
The listing says 6 m², from 10 m × 0.6 m. Reviewers say that covers the main radiators in a house, which depends on radiator size.
Are there enough sticky strips?
Strips are included. Several United Kingdom reviews say they ran out and bought more.
Where do reviewers put it?
Behind radiators, especially on outside walls. One buyer fixed a piece under a radiator shelf.
The Triplast EPS 70 pack is the top pick in this amazon.co.uk set when you want a rigid board rather than foil or a foam tile. You get 24 white sheets of 1200 × 600 × 25 mm, about 17.28 m², for £80.89, and the listing names the United Kingdom as the country of origin. Across 345 reviews the line is 4.6. United Kingdom reviewers use the sheets in sheds and outbuildings, and they also say cutting throws polystyrene beads and that the sheets are fragile. The title says BBA certified, but the captured listing has no certificate number, so that stays a title claim. Listing conductivity starts at 0.038 W/(m·K); at that figure, 25 mm is about 0.66 m²K/W of material resistance, which is not the U-value of a house wall. Adhesive is not in the box. The score of 78 is that review base held down by the thickness limit, not a lab test of a wall.
Pros
Cons
Best for: You want a rigid EPS lining for a shed or summerhouse and you can live with beads when you cut.
Less suitable: You need a new house wall, roof, or floor to a Part L U-value, or a clean cut with no mess.
Specifications
Common questions
Does the listing include a BBA certificate number?
No. The title says BBA certified. The captured listing has no certificate number, so that word stays a title claim.
Is adhesive in the box?
No. One United Kingdom reviewer stuck the sheets with wallpaper paste. Cutting throws polystyrene beads.
Will 25 mm meet a house-wall U-value on its own?
The listing’s conductivity starts at 0.038 W/(m·K). At that figure, 25 mm is about 0.66 m²K/W of material resistance. That is not the U-value of a wall.
The Fabian Clarke London 5 m roll is the best value radiator foil in this set if you only need about 3 m² behind a few radiators on a cold outside wall. It is £14.99, stated at 5 m × 60 cm and 4 mm, with sticky tabs in the box, and the listing names the United Kingdom as the country of origin. The amazon.co.uk line is 4.5 from 2,196 reviews, the largest sample here. Reviewers often say the wall behind the radiator feels warmer, though a minority notice nothing. One United Kingdom review says the bubbles are nearer 2 mm, and another buyer returned a roll as too thick for a tight gap, so the 4 mm line is disputed. There is no lambda in the file. The score of 72 treats it as a reflector for that job, not as a board.
Pros
Cons
Best for: You have a few radiators on an uninsulated external wall and you want the cheapest well-reviewed roll in this set.
Less suitable: You need about 6 m², a measured wall U-value, or foil on an internal wall.
Specifications
Common questions
Are the sticky tabs in the box?
Yes. Reviewers use them behind radiators. Some wanted more pads, and one review found no instructions.
Is it 4 mm thick?
The listing says 4 mm. One United Kingdom review says the bubbles are about 2 mm. Another buyer returned it as too thick for a tight gap.
Does it insulate a wall?
The listing sells it to sit behind radiators. It is not a 25 mm board and it has no lambda in the file.
wordmouk’s PET aluminium and PE bubble roll is about 0.6 × 5 m, a stated 3.5 mm, at £10.98, the lowest shelf price among the foil rolls in this set. The amazon.co.uk line is 4.5 from 285 reviews, and the listing names China as the country of origin. Reviewers also wrap pipes, a summerhouse roof, and an air-conditioner hose, so it is not only a radiator sheet. Tape is mentioned in reviews and it splits opinion: one sheet came off after three days, and another buyer says you must press hard or it lets go. One United Kingdom review says it is not 3.5 mm thick and does not work well. There is no lambda. The score of 68 keeps the price and the star line, then cuts for the tape and the thickness dispute.
Pros
Cons
Best for: You want the cheapest bubble roll in this set and you will press the tape hard, or bring your own.
Less suitable: You want reliable sticky tabs and a thickness you can trust behind a tight radiator.
Specifications
Common questions
Is the tape strong enough?
Reviewers say tape is supplied. One sheet came off after three days. Another says you must press hard or it lets go.
Is it 3.5 mm?
The listing says 3.5 mm. One United Kingdom review says it is not 3.5 mm thick and does not work well.
Is it only for radiators?
The highlight also names loft, caravan, shed, and auto. Reviews add pipes, a summerhouse roof, and an air-conditioner hose.
JAMELO’s 12-pack is a 1 cm polyester tile for echo inside a room you own, not a party-wall lining. Twelve peel-and-stick squares of 30 × 30 cm cover about 1.08 m² for £21.99, and the highlight states a density of 150 kg/m³ without a test report in the file. The listing is 4.2 from 807 amazon.co.uk reviews. United Kingdom reviews split: some hear less echo or less noise from a boiler cupboard, and several say a neighbour is still as loud. The listing still says soundproof. Glue can be too strong for paint or too weak so tiles fall, which matters on a rented wall. The fire line says fire retardant and names no Euroclass. The score of 64 is that large review base, cut for the neighbour-noise miss and the adhesive risk.
Pros
Cons
Best for: You own the wall and you want a small polyester patch for echo or a cupboard.
Less suitable: You rent, you need a quieter party wall, or you wanted heat insulation.
Specifications
Common questions
Is the adhesive already on the tile?
Yes. The listing says peel and stick. Reviews say it can be too strong for paint, or too weak so tiles fall.
Will these stop a neighbour’s noise?
Several United Kingdom reviews say no. Some report less echo or less noise from a boiler cupboard. The listing still says soundproof.
What size is the pack?
30 × 30 × 1 cm, 12 tiles, about 1.08 m². The highlight says 11.6 square feet. One review describes hexagons instead.
JMIATRY’s self-adhesive roll is 10 m × 0.32 m, about 3.2 m², stated at 7 mm, for £23.99. That is narrower than the 0.6 m Fabian Clarke rolls, so a typical radiator needs more joins. The bullets say 95% reflection, and that sentence has no test report in the file. The listing is 4.2 from 33 ratings, with six United Kingdom reviews captured, and two of those describe adhesive failure: the liner takes the glue with it, or the glue fails when it gets hot. The material field disagrees with itself, naming rubber-plastic foam in one place and aluminium in another. Included components are marked as none. The score of 58 reflects that small, mixed sample. Country of origin on the listing is China.
Pros
Cons
Best for: You have measured a gap that accepts about 7 mm and you want a self-adhesive roll rather than tabs.
Less suitable: You want the larger review sample on the Fabian Clarke rolls, or adhesive that has already failed for you on a hot wall.
Specifications
Common questions
Does the 95% figure come from a test in the file?
No. It is a sentence in the bullets. The captured listing has no test report.
How wide is the roll?
0.32 m by 10 m, so about 3.2 m². That is narrower than the 0.6 m Fabian Clarke rolls.
Does the adhesive hold?
One review says the liner takes the adhesive with it. Another says the glue fails in high temperature.
temproad’s nine butyl sheets are the heavy car-panel mat in this set: 2 mm, about 36 square feet, 13.9 kg, for £29.99, which is what separates them from the 510 g AKOLAFE pack sold under a similar search. The listing is 4.0 from 21 amazon.co.uk reviews. More than one United Kingdom review says the fitting tools were missing, even though one buyer did receive a roller, and the bullets do not list tools. Adhesive is uneven: two reviews say the first peel barely sticks, one buyer wiped a sheet with paint thinner, and another still had it stuck after two weeks. The fire line says fire retardant and names no class, and there is no lambda. The score of 58 is a small sample held down by missing tools and weak stick. It is for panel ring, not a house wall.
Pros
Cons
Best for: You are damping ring on a car panel and you have your own roller if the box arrives without tools.
Less suitable: You wanted a light van heat sheet, or you cannot return a 13.9 kg pack if the adhesive fails.
Specifications
Common questions
Are the fitting tools in the box?
Not reliably. Two United Kingdom reviews say both boxes had no tools. The bullets do not list tools. One review did receive a roller.
How heavy is the pack?
13.9 kg for nine sheets. That is the mass clue. The AKOLAFE pack in this set is about 510 g.
Does the adhesive hold?
It is self-adhesive butyl. Two reviews say the first peel barely sticks. One buyer wiped the sheet with paint thinner. Another still had it stuck after two weeks.
Saiqiang’s 12 polyurethane wedges are a cheap echo trial at £13.99, titled around 1 × 12 × 12 inch, with a stated coverage of 1,728 square inches. The listing is 3.9 from 993 amazon.co.uk reviews, a large sample that is not kind. United Kingdom reviews say the pack is vacuum sealed, so tiles arrive flat; a hairdryer or a few days helps some of them, and some never reach a useful thickness. Glue or patches are supplied and often do not hold, so tiles fall off. The title says soundproof, and buyers say that word overclaims. The listing says fire resistant and names no class; one United Kingdom review says they are not fire resistant. The warranty line is spelled “6 monthes”. The score of 50 is that review volume with those repeated failures.
Pros
Cons
Best for: You want a low-cost wedge sample for echo inside one room and you will replace the glue.
Less suitable: You need tiles that stick on day one, a named fire class, or less noise from next door.
Specifications
Common questions
Why do they arrive flat?
United Kingdom reviews say the pack is vacuum sealed. Buyers use a hairdryer or wait days. Some tiles never reach a useful thickness.
Is the glue usable?
Reviewers say glue or patches are supplied and do not hold, or are hard to unpeel. Tiles fall off.
Are they fire resistant?
The listing says fire resistant and names no class. One United Kingdom review says they are not fire resistant.
AKOLAFE’s 35-piece pack is a light foil-faced foam sheet, 25 × 18 cm and 7 mm, with a stated 17 square feet and a pack weight of 510 g, at £19.99. The title says sound deadening, but several United Kingdom reviews say it is light foam and foil, not a weighted mat, and that rattles stayed. The listing is 3.8 from 28 reviews. Reviews also say the adhesive stays on the liner, so sheets are wasted before they reach the panel. There is no lambda, and the fire line says fire resistant without a Euroclass. Thirty-five sheets of that size are about 1.58 m². The score of 46 is cut because the deadening claim is rejected in the United Kingdom sample. If the job is panel vibration, the 13.9 kg temproad mat is the heavy product in this set, not this one.
Pros
Cons
Best for: You want a light heat patch on a van or shed panel and you will check each liner before you waste a sheet.
Less suitable: You need sound deadening, or a heavy mat that is meant to stay stuck.
Specifications
Common questions
Is this sound deadening?
The title says so. Several United Kingdom reviews say it is light foam and foil, not a weighted mat, and that rattles stayed.
How much area is in the pack?
The listing says 17 square feet. Thirty-five sheets of 25 × 18 cm are about 1.58 m². The pack weighs 510 g.
Does the backing peel cleanly?
Not always. Reviews say the adhesive stays on the liner, so sheets are wasted.
This 48-piece polyurethane pack is the weakest acoustic tile in the set on the figures in the file. The title says 12 × 12 × 1 inch wall stickers at £31.91, while the bullets say no adhesive is included and you should use staples, nails, screws, tacks, tape, or glue, and a second size line of 30 × 30 × 2.5 cm does not match 1 inch. The amazon.co.uk line is 3.4 from 1,167 reviews. Tiles arrive vacuum packed and crushed; reviewers use a hairdryer or a steamer, some never reach the stated thickness, and one review measured about 15 mm. Reviews of the white option say tiles turn yellow, including on a wall with no direct sun; this capture is the black variant. The title says fireproof and names no class, and the brand field is empty. The score of 40 follows that pattern of crushed foam, a false sticker claim, and the lowest star line here.
Pros
Cons
Best for: You already have glue or staples and you only want a black foam patch after you have read the thickness complaints.
Less suitable: You want peel-and-stick, a thickness that matches the title, or a product with a named brand.
Specifications
Common questions
Is adhesive included?
No. The bullets say fix with staples, nails, screws, tacks, tape, or glue, and that no adhesive is included. The title still says wall sticker.
Do they stay white?
This capture is the black variant. Reviews of the white option say tiles turn yellow, including on a wall with no direct sun.
Why are they flat in the box?
They are vacuum packed. Reviewers use a hairdryer or a steamer. Some never reach the stated thickness. One review measured about 15 mm.
BXI’s closed-cell roll is £38.99, and it is the product in this set you cannot rank from stars, because the saved listing has no review line and no star count. The title says 33 × 200 × 1 cm, while the specification block says 33 × 10 cm and a coverage of 0.64 m², and a sheet of 0.33 × 2.00 m is about 0.66 m², so the width line does not agree with the title. One bullet says 50 kg/m³ neoprene, another says polyethylene with an aluminium face, and the material field says aluminium, with weight listed at 200 g. The seller compares it with open-cell foam and gives no lambda. The score is 0 because there is no Amazon rating to scale, not because a laboratory failed it. At the top of the mid price band, with no United Kingdom review in the file, it is a specification conflict rather than a pick.
Pros
Cons
Best for: You have already opened the live amazon.co.uk page and the size and the material now agree with each other.
Less suitable: You want a reviewed roll, a coverage you can trust, or a radiator foil with a large United Kingdom sample.
Specifications
Common questions
What size is the sheet?
The title says 33 × 200 × 1 cm. The specification block says 33 × 10 cm and coverage 0.64 m². Those do not agree. 0.33 × 2.00 m is about 0.66 m².
Are there United Kingdom reviews in the file?
No review text and no star line were captured.
What is the foam?
One bullet says 50 kg/m³ neoprene. Another says polyethylene with an aluminium face. The material field says aluminium.
Shelf prices, stars and review notes are the amazon.co.uk snapshot already stored for these twelve listings. This is not a laboratory test of a wall, a foil or a tile. The score starts from the star line and the review count. A named thickness, the coverage and what is in the box can hold a score up. The score is cut when United Kingdom reviews dispute the thickness, when adhesive or tools are missing, when a sound or fire claim has no class, when the sample is only a few dozen reviews, or when there is no review line at all. A 25 mm expanded polystyrene sheet is not scored as a Part L wall. Foil is not scored as a board. The highest score, 78, is the top pick. Best value is a separate award for the radiator roll with the largest review sample, not a second board.
Star line and review count
45%The amazon.co.uk star line and the review count are the base of the score. A high star line on a handful of ratings does not outrank a large sample. A listing with no review line scores 0 on this base.
Thickness, coverage and box
25%A named thickness, the area the pack covers, and what is in the box can hold a score up. Sticky tabs, a self-adhesive backing and fitting tools are checked against the listing and the United Kingdom reviews.
Job match
15%A 25 mm sheet is not scored as a Part L wall. Foil is not scored as a board. A sound or fire claim with no class is a cut, not a pass.
Review cuts
15%Thickness disputed in United Kingdom reviews, adhesive or tools missing, a sample under a few dozen reviews, or no review line at all, each pulls the score down. There is no laboratory ranking.
You are choosing a sheet for heat, echo or a vehicle panel, and the twelve amazon.co.uk listings are not one product. The set mixes a 25 mm expanded polystyrene pack, radiator foil, a self-adhesive van sheet, acoustic tiles and a heavy butyl mat. Shelf prices run from about £10.98 to about £80.89. Name the job before you sort by price. The top pick is the rigid board when the job is a shed lining and you accept a messy cut.
An insulation panel, in the way these amazon.co.uk listings use the words, is a sheet, a roll or a tile sold to slow heat or to cut echo. This set is not a shelf of PIR boards. Shoppers use the rows behind a radiator, in a shed, for echo in a small room, or on a vehicle panel. Quality is the right job, a thickness you can check, adhesive or tools that are in the box, and reviews that describe that job.
A foil roll, a 25 mm board, an acoustic tile, a van sheet and a butyl mat are not substitutes. The listing title often says insulation for all five. Sort by the job first.
England’s Table 4.2 limits for new fabric in existing dwellings are a roof U-value of 0.15 and a wall or floor of 0.18. A retail lambda on 25 mm is material resistance, not that element. Foil on an internal wall is the weak case.
Acoustic foam is absorption. United Kingdom reviews say neighbour noise stays. A light van pad is not sound deadening. Peel-and-stick tiles can damage paint on a rented wall.
The first check is the job. House fabric, a radiator on an external wall, echo inside a room, van heat and car-panel vibration are five different buys, and the listing title often says insulation for all of them. Match the material family next. Expanded polystyrene board, metallised bubble or foam, open-cell acoustic foam, a dense polyester tile and a butyl mat fail in different ways. A rigid 25 mm sheet can line a shed if you accept beads when you cut. It is not scored here as a Part L wall.
Check thickness and coverage against the gap or the wall area before you trust the title. Several foil listings are disputed by reviewers on millimetres. A stated 4 mm can be called nearer 2 mm, or too thick for a tight bracket. A stated 3.5 mm is also disputed. Vacuum-packed foam often arrives flat. Some tiles never reach a useful thickness, and one review of the large foam pack measured about 15 mm. Then check the box.
Three typical situations, each with a recommendation from this comparison.
You want a rigid expanded polystyrene lining and you can live with beads when you cut. The Triplast EPS 70 pack is the top pick at about £80.89: 24 sheets of 25 mm, about 17.28 m², and 4.6 from 345 amazon.co.uk reviews. It is not a house wall to a Part L U-value, and adhesive is not in the box.
You have a few radiators on an uninsulated external wall. The Fabian Clarke 5 m roll is best value at about £14.99, about 3 m², with sticky tabs in the box and 4.5 from 2,196 amazon.co.uk reviews. It is not a measured wall U-value, and the stated 4 mm is disputed.
You want less echo, not a quieter neighbour. The JAMELO 12-pack is about £21.99 for 1 cm polyester tiles, about 1.08 m², with 4.2 from 807 amazon.co.uk reviews. Glue can mark paint. It is a poor choice on a rented wall, and it is not heat insulation.
The top pick is the Triplast EPS 70 pack at about £80.89. It scores 78, the highest in this set: 24 sheets of 1200 × 600 × 25 mm, about 17.28 m², 4.6 from 345 amazon.co.uk reviews, and the only rigid board in the capture. It is not a laboratory test. 25 mm is a lining, not a Part L wall on its own. United Kingdom reviews call cutting messy and the sheets fragile, adhesive is not in the box, and the title’s BBA wording has no certificate number in the file. Best value is the Fabian Clarke 5 m radiator foil at about £14.99, score 72, 4.5 from 2,196 reviews, for a cold outside wall. The stated 4 mm is disputed. The 10 m roll scores 74 and is still foil, not a second board.
Fabian Clarke 5 m radiator foil
About £14.99, score 72 and 4.5 from 2,196 reviews. A reflector for a cold outside wall, not a board.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources and the amazon.co.uk listings compared on this page. Shelf prices are the stored capture, not a live check on 21 October 2026. Updated 23 October 2026.
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the amazon.co.uk figures already stored for this set. This is not a laboratory test of U-value, adhesion or sound.
