Isocheck RENOVO System : overlay platform system direct to floorboards

Isocheck PRIMO & PRIMO HL Isocheck ULTIMO Isocheck 32T Isocheck 37T Isocheck 27C, 23C & 14C Isocheck 28T, 24T & 15T Isocheck RENOVO Isocheck Deep Batten Isocheck Shallow Batten Isocheck Cradle Isocheck Barrier Mat 5 & 10 Isocheck Impact Mat 100, 200 & 300 Isocheck Re-Mat 3 & Re-Mat 5 Isocheck Re-Mat Base 3 & 6 Isocheck Re-Cork 3 & Re-Cork 5 Isocheck Screedcheck XL5 Isocheck Screedcheck XL8 Isocheck Screedcheck XL10 Isocheck Phonewell Isocheck Absorba ceiling & wall panels Isowave System 23 for Walls Isowave System 23 for Ceilings Accessories

product data sheet
installation instructions

NHBC Tested

0845 838 3399


•  Conversions
•  Refurbishments
•  Listed or historic buildings requiring minimal structural change

Isocheck RENOVO system is designed to reduce sound transmission through traditional joisted timber floors. It can be installed directly over existing floorboards making the system ideal for new build, conversion and refurbishment projects.

Isocheck RENOVO consists of 8mm environmentally friendly Ecopoli resilient layer* bonded to 18mm p5 moisture resistant chipboard.

When installed as part of a complete party floor construction either system enables a traditional timber joisted floor to meet the sound transmission standards of Approved Document E 2003 and subsequent amendments in 2004, 2010 and 2013.

Isocheck RENOVO further enhances its appeal by allowing existing ceilings to be reused thus avoiding energy consumption in either their disposal or recycling.


To be used over existing floorboards for conversions, refurbishments or new build with a new resilient bar ceiling.

Typical performance expectations (on the construction illustrated)

Treated floor with:

Isocheck RENOVO on
18mm chipboard deck

R,w+ Ctr
DnT,w+ Ctr

Site results (in red) for Building Control approval.
Laboratory results (in blue) for comparison.

Product data

Overall size 2400mm x 600mm x 26mm
Resilient layer thickness 8mm
Resilient layer
*Ecopoli - produced from castor
oil plant
Weight 18.8kg per sheet


PCT Patent pending Photo

Isocheck Solo

  • Isocheck RENOVO.
  • floorboards.
  • 200mm x 70mm timber joists @ 450mm centres.
  • 100mm 45kg/m3 insulation between joists (total ceiling mass 20kg/m2).
  • 25mm double boarded ceiling or lath & plaster (min 20kgm2).
  • Note: Tested only with direct fixed ceilings




The acoustic floor shall be:

Isocheck RENOVO system, supplied by Isomass Ltd. Units 10 & 11, Avenue Business Park, Elsworth, Cambridgeshire CB23 4EY and installed in accordance with manufacturer’s instructions / recommendations.


Apply Isocheck Acoustic Angled Flanking Band on the edges of the Isocheck boards just before they are pushed against the perimeter walls to isolate the board from the wall.

Lay Isocheck RENOVO over a structural timber sub-floor, in brick bond pattern, applying Isocheck adhesive to all tongued and grooved panel joints.

Install skirting and trim off excess Flanking Band.

Full installation instructions for RENOVO are available to download by clicking on the link to the left of this page. Installation instructions must be used in conjunction with this information and/our information contained in the datasheet when laying the RENOVO floating floor system.

Isocheck RENOVO System : offering maximum environmental credentials whilst minimising structural change

Architects and builders alike are continually looking for suppliers that can innovate towards helping them to prove their green credentials without compromising on quality and performance.

Isomass Ltd is such a supplier with considerable practical knowledge in the field of building acoustics, underpinned by a mission to continually innovate.

With the increasing demand for building products to help safe guard the environment Isomass Ltd are pleased to offer a new acoustic overlay system that not only raises the bar with its environment credentials but delivers a performance that eclipses comparative systems when utilising a direct fixed ceiling such as existing lath & plaster.

Castor Oil Plant
Flower of the castor oil plant (Ricinus communi).


Isocheck RENOVO’s resilient layer (ecopoli) contains 20% renewable vegetable based components compared tozero in traditionally manufactured petroleum-based foams, with the added benefit of using less fossil fuelcomponents in its manufacture. A completely new catalyst enables castor oil to be employed in the production oflow-emission polyols. With castor oil accounting for 30% of the polyol’s totalweight it can contribute to yet another renewable recipe tohelp our environment.

Performance benefits (ideal for listed buildings)

Solo BoardIsocheck RENOVO has been tested by the NHBC for use in conversion applications and comfortably meets the required performance standards as specified in Approved Document E 2003 without a proprietary resilient bar or MF suspended ceiling system. So now (in cases where the floor void is 200mm or above) it is not necessary to remove a direct fixed ceiling and the existing floor may be rebuilt as a working platform before Isocheck RENOVO is incorporated over the floorboards or chipboard. Making the Isocheck RENOVO system one of the last operations thus avoiding costly protection necessary on alternative direct to joist systems.

Castor seed is the source of castor oil, which has a wide variety of uses. The seeds contain between 20% and 90% oil that is rich in triglycerides, mainly ricinolein. Native to Africa, Asia and now naturalised throughout Australia, it is often abundant along watercourses and floodplains.



© 2006-2015 Isomass Ltd. | Terms & Conditions | Privacy Policy | Accessibility Statement


Designed by