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5mm Isocheck Screedcheck XL5 Impact Noise System 75m2

5mm Isocheck Screedcheck XL5 Impact Noise System 75m2
5mm Isocheck Screedcheck XL5 Impact Noise System 75m2
5mm Isocheck Screedcheck XL5 Impact Noise System 75m2
5mm Isocheck Screedcheck XL5 Impact Noise System 75m2
5mm Isocheck Screedcheck XL5 Impact Noise System 75m2
  • 5mm Isocheck Screedcheck XL5 Impact Noise Improvement 75m2 Roll
  • Screedcheck XL5, a 5mm closed cell cross linked acoustic foam layer
  • Used directly below the screed, an impact noise improvement system
  • Designed for concrete floors suitable for both new build and conversions
  • Impact improvement performance of 50dB (Approved Document E 2003)
Estimated delivery:
In Stock
£ 353.20
Ex VAT: £ 294.33
  • Brand: Isomass
  • Model: 5mm Screedcheck XL5
  • Dimensions: 50,000mm x 1,500mm x 5mm
  • SKU: 5mm Screedcheck XL5
  • Product code: P1-3576
  • MPN: 5mm Screedcheck XL5

Options available

Screedcheck XL5, a 5mm closed cell cross linked acoustic foam layer used directly below the screed, an impact improvement system designed for concrete floors suitable for new build and conversions.

Isocheck Screedcheck XL5 System from Isomass features a 5mm closed cell cross linked foam layer that has been designed to be placed within a masonry structural floor directly below the screed.

This isolates the screed from the structural sub floor, and provides sufficient impact absorption to place it amongst the top performing systems available.

By ensuring that all the joints are taped, bridging will be eliminated which is the single greatest cause of failure of any system of this type.

When installed correctly, the XL5 system will enable compliance with Approved Document E 2003 and subsequent amendments in 2004, 2010, 2013 & 2015.

Screedcheck XL5 Impact Improvement System for Concrete Floors is manufactured in 750kg/m3 density with an excellent impact improvement performance of 50dB.

XL5 Screedcheck is suitable for new build, refurbishment and conversion projects. 

Closed cells prevent water absorption which can impair acoustic performance.




Thickness: 5mm

Width: 1500mm

Length: 50m

Roll Coverage: 75m2

Size: 5mm x 1500mm x 50000mm

Profile: Under Screed Impact Mat

Material: Closed cell cross linked acoustic foam

Application: Under Screed

Density: 250-750kg/m3

Impact Improvement: 50dB


5mm Isocheck Screedcheck XL5 System Features:

 · Used directly below the screed.

 · Prevents water transmission.

 · Tested as a single layer product.

 · A closed cell isopoli, cross linked polyethylene foam.

 · Designed to be placed within a masonry structural floor.

 · Used to reduce impact sound transmission.

 · Provides sufficient impact absorption.

 · Guaranteed to pass a Part E compliant sound test.

 · Excellent impact improvement performance of 50dB.

 · Suitable for all types of structural concrete floors.

 · Suitable for refurbishment, conversions or new build projects.

 · Can be used on concrete beam and block.


5mm Screedcheck XL5 Impact Improvement System Installation Guidelines:

 · The floor surface should be swept free of any loose debris that may damage or bridge the system.

 · Screedcheck XL5 can be rolled up the wall or lapped and taped to a perimeter flanking strip.

 · Either option should allow a minimum 50mm to protrude above the intended FFL of the screed.

 · Adjoining roll edges should be overlapped by a minimum 50mm and sealed with a minimum 100mm wide jointing tape.

 · Services that penetrate the screed should be isolated by wrapping with Screedcheck XL5 which again would be taped.

 · When trafficking the floor take care not to perform any unnecessary actions that may cause any of the taped joints to be forced apart.

 · If in doubt in any area, please call Isomass prior to commencement of work.


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 

*Special Product - Non returnable cancelable.

Handling Characteristic Protective Gloves
Board covarage 75.00 m2
Colour Red
Density 250-750kg/m3
Length 50000mm
Material Closed cell Isopoli (polyethylene foam)
Profile Impact Improvement System
Size 5mm x 1500mm x 50000mm
Thickness 5mm
Width 1500mm
Fire Classification NPD
Building Regulations Compatible
Coverage 75m2
Finish Closed cell polyethylene foam
Shipping method Articulated Vehicle ǀ Courier
Grade Under screed
Sound insulation reduction 50dB (Impact)
Applications Directly below the screed
Type Impact Improvement System
Fixing method Laid, butt joint and seal
ETA Notification Yes
Features System used directly below the screed
Manufacturer Isomass®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
5mm Isocheck Screedcheck XL5 Impact Noise System 75m2
5mm Isocheck Screedcheck XL5 Impact Noise System 75m2
£ 353.20