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Isocheck Screedcheck XL9

Impact improvement system for beam & block floors

The Isocheck Screedcheck XL9 system from Isomass features a 9mm closed cell non 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 XL9 system will enable compliance with Approved Document E 2003 and subsequent amendments in 2004, 2010, 2013 & 2015.

  • Closed Cell Technology: Prevents water absorption which can impair acoustic performance
  • Top Performance: Amongst the highest performing systems available
  • Free Site Inspection: All installations over 500m² come with a free site pre screed inspection
  • Anti-Bridging Design: Taped joints eliminate bridging - the single greatest cause of failure
  • Performance: DnT,w + Ctr 50dB / L'nT,w ≤45dB
  • NHBC Tested: Independently tested and approved
Screedcheck XL9 Screedcheck XL9 Installation Screedcheck XL9 Detail

View more technical information and downloads

Designed for new build and conversion projects with beam and block floor construction.

The system is placed within a masonry structural floor directly below the screed, isolating the screed from the structural sub floor.

Ideal for large-scale developments where consistent acoustic performance is critical.

Treated floor with: Screedcheck XL9

DnT,w + Ctr 50dB
L'nT,w ≤45dB

Performance values place this system amongst the top performing acoustic solutions available.

Roll dimensions: 1.20m wide x 50m
Thickness: 9mm
Foam composition: Closed Cell Non Cross Linked Isopoli

The acoustic floor shall be Isocheck Screedcheck XL9, supplied by Isomass Ltd. Unit 14 Papworth Business Park, Stirling Way, Papworth Everard, Cambridgeshire CB23 3GY and installed in accordance with manufacturer's instructions / recommendations.

  • The floor surface should be swept free of any loose debris that may damage or bridge the system
  • A separate piece of Screedcheck XL9 should be used as a perimeter flanking strip. This piece should be butt-jointed and taped to the main layer and include a minimum 50mm to protrude above the intended FFL of the screed
  • Adjoining roll edges should be butt-jointed and sealed with a minimum 100mm wide jointing tape
  • Services that penetrate the screed should be isolated by wrapping with Screedcheck XL9 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
Screedcheck XL9 Detail
Screedcheck XL9 Section
  • Min 80kg/m² - 65mm sand cement screed or 40mm liquid proprietary screed
  • Optional plastic sheeting - to aid screed pouring and maintain joints in Screedcheck XL9
  • Screedcheck XL9 on grouted sub floor
  • ≥300kg/m² minimum structural beam and block floor with optional levelling screed
  • 75mm min. void formed by metal frame suspended ceiling system and ≥10kg/m² gypsum board ceiling
  • 50mm FFL with 100mm min. jointing tape

Download datasheet

Download Screedcheck XL9 Datasheet

Find Isocheck Screedcheck XL9 on NBS Source for detailed specifications and BIM objects.

Visit NBS Source
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