26mm Monodeck 26C for Concrete Floors is an acoustic overlay platform insulation system used to reduce sound transmission and also reduce impact sound transmission through concrete floors.

Isomass Monodeck 26C is a 26mm thick acoustic floor board, consisting of a layer of 8mm reconstituted ACF (Acoustic Chip Foam) bonded to 18mm P5 V313 moisture resistant chipboard.

This Isomass approved separating floor construction system enables a traditional timber joisted floor to meet the sound transmission standards of Approved Document E 2003 and amendments.

For best performance of Mondodeck 26C overlay platform system adhesive and flanking band should be used to reduce impact vibration leaking and assists in reducing airborne sound paths.

This concrete floor acoustic system provides excellent results of approx. 53dB airborne and impact noise reduction when correctly installed.

Monodeck 26C fully complies with New Build Robust Detail descriptive FFT5 within E-FC-1, E-FC-2 and E-FS-1.

A VCL (Vapour Control Layer) will be required when installing 26mm Isomass Monodeck 26C on new screed.

Installation of Monodeck should not commence until roof, window glazing and wet trades are completed and the structure is watertight.

Leave overnight for adhesive to cure before trafficking the newly installed system.

Specification:

Thickness: 26mm

Width: 600mm

Length: 2400mm

Size: 26mm x 600mm x 2400mm

Board Coverage: 1.44m2

Profile: Tongue & Groove

Resilient layer thickness: 8mm

Resilient layer fire test: Tested to BS 5852-2:1982

Weight: 28.81kg per board

Resilient layer: Reconstituted ACF (Acoustic Chip Foam) 

Airbone reduction: 53dB

Imapct reduction: 53dB

Monodeck 26C Concrete Floor Overlay System Features:

 · Suitable for concrete floors.

 · Overlay platform system.

 · Used to reduce sound transmission

 · Used to reduce impact sound transmission.

 · Meets sound transmission standards.

 · Meets Approved Document E 2003 and amendments.

 · Reduce impact vibration leaking.

 · Reducing airborne sound paths.

 · 53dB airborne and impact noise reduction.

 · Complies with New Build Robust Details.

Monodeck 26C for Concrete Floor Overlay Platform System Installation Guidelines:

 · The presence of steel work, lift shafts and even ceiling penetrations can often impair acoustic performance.

 · Floor should be a level screed / concrete with a smooth surface, or an in-situ concrete base.

 · The floors should be level, sufficiently dry and swept clean to allow the Monodeck 26C to be laid flat, without any irregularities of sufficient height to bridge the resilient layer.

 · Installation of isocheck should not commence until roof, window glazing and wet trades are completed and the structure is watertight.

 · Leave overnight for adhesive to cure before trafficking the newly installed system.

 · 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.

 · Board fitting should begin at the furthest point from the entrance and marked out so as not to finish with any panels less than 200mm wide.

 · The decking must be laid in a broken bond pattern, with all joints glued and staggered - no mechanical fixings should be used.

 · Isocheck adhesive is applied to both the top of the tongue and the bottom of the groove on each side of each joint.

 · The boards are then pushed tightly together - surplus adhesive should be wiped away from the surface with a damp cloth. 

 · Monodeck 26C must be kept in a dry storage area - deliveries should be scheduled to coincide with availability of suitable dry storage areas.

 · Door openings should have linings fitted prior to the installation of the acoustic floor.

 · The Monodeck 26C boards should be carefully detailed to ensure a good fit.

 · Although not ideal, architraves and stops can be fixed after floor installation, leaving a 2/3mm gap from the surface of the floor.

 · To prevent flanking transmission all skirting must be isolated from the floor surface.

 · Before incorporation, place an isocheck Flanking Strip around the edge of the Monodeck 26C boards before pushing into position.

 · Remove any excess with a sharp knife, flush to the skirting face. 

 · Stud partitioning should be built from the sub floor wherever possible.

 · If it is your intention to build off the top of Monodeck 26C additional advice should be sought.

 · It is good practice to isolate all partitions built from the sub-floor with Isocheck Flanking Strip as this will improve the performance of the walls as well as the floors.

 · Isocheck Flanking Strips provide isolation of the flooring system from all vertical structures and penetrations.

 · The Flanking Strip is trapped to the wall and returned down over the Monodeck 26C board as the perimeter boards are placed.

 · The skirting board is then fixed to the wall securing the Flanking Strip between the skirting board and the Monodeck 26C.

 · After the skirting board is installed, simply trim the Flanking Strip flush with a sharp knife.

 · Appliances and sanitary ware, with rigid plumbing connections that penetrate the system, should be isolated.

 · Should be isolated from the floating floor by cutting a hole up to 10mm larger than the service diameter and filling the gap with an acoustic sealant.

 · Ideally kitchen worktops should be isolated from the wall with Impacta pads and trimmed flush with surface before tiling commences. 

 · In a kitchen, we recommend the kitchen units are installed on the sub-floor on pads, so that the Monodeck 26C can terminate at the legs of the units.

 · The plinth can then be installed to the kitchen unit legs, making a neat, flush finish.

 · Lay the floor in areas where appliances will sit, allowing for adequate height below the work surfaces.

 · If installing the units on the floating floor additional advice should be sought to reduce the potential for unwanted impact flanking noise.

 · In a bathroom, we recommend the bath should be supported from the sub-floor on isolation pads, and the floating floor terminate at the legs of the bath as close as possible.

 · The bath panel can then be installed making a neat, flush finish.

 · Plywood the same height as the Monodeck 26C should be laid under the bath, toilet and wash basin area and the joints filled with silicon or an alternative acoustic sealant where necessary.

 · Ceiling boards should be installed first, especially before any dry-lining of walls (such as dot & dab) to prevent potential flanking transmission.

 · Ceilings should be boarded with a minimum mass of 10kg/m², preferably with a void of 75mm and fixed to resilient bars or suspended from a metal frame system in accordance with manufacturers recommendations.

*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.