Monodeck 17T is an acoustic overlay floor insulation system, a 17mm thick board used directly to floorboards to reduce transmission through timber floors in situations where finished floor height is critical.

Isomass Monodeck 17T floor board is a 17mm thick acoustic insulation consisting of a layer of 8mm reconstituted ACF (Acoustic Chip Foam) bonded to 9mm moisture resistant medium density fibreboard.

When installed as part of a complete sound reduction system, it enables a timber floor to meet the sound transmission regulations of Approved Document E 2003 and subsequent amendments.

Isomass Monodeck 17T System when tested for Building Control approval provides excellent results of approx. 48dB airborne and impact noise reduction when correctly installed.

Monodeck 17T acoustic overlay board can be used over existing floorboards for conversions, refurbishments or new build projects with a new resilient bar ceiling.

For full performance Mondodeck acoustic overlay floor system adhesive and flanking band should be used to reduce impact vibration leaking via structural walls and assists in reducing airborne sound paths.

The cutting of boards, either by hand or machine, will produce dust that may be an irritant if inhaled, please use dust masks when carrying out all cutting operations.

The finished acoustic floor system should be protected with an appropriate layer immediately after being installed to prevent damage by any following tradesmen.

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: 17mm

Width: 600mm

Length: 1200mm

Size: 17mm x 600mm x 1200mm

Board Coverage: 0.72m2

Profile: Tongue & Groove

Resilient layer thickness: 8mm

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

Weight: 5.11kg per board

Resilient layer: Reconstituted ACF (Acoustic Chip Foam) 

Airbone reduction: 48dB

Imapct reduction: 48dB

Monodeck 17T Acoustic Floor System Features:

 · Easy to handle.

 · Overlay platform system.

 · Used directly to floorboards.

 · Used to reduce transmission through timber floors.

 · Complete acoustic floor system with adhesive and flanking band.

 · Enables a timber floor to meet the sound transmission regulations.

 · Provides approx. 48dB airborne and impact noise reduction.

 · Suitable for conversions, refurbishments or new build projects.

 · Reduce impact vibration leaking.

 · Reducing airborne sound paths.

Monodeck 17T Floor Insulation System Installation Guidelines:

 · 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 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.

 · Before commencing work please ensure that all recessed down-lights or other invasive fittings have been correctly treated prior to closing off the subfloor from above with the Monodeck system.

 · If not confirmed of a solid construction all structural walls should be sealed both top and bottom prior to floor laying. e.g.: lath & plaster wall linings, dot & dab systems, 'hollow' battened skirting's, etc.

 · The sub floor should ideally be min. 18mm chipboard, OSB, decking ply or original floorboards with a continuous layer of 100mm (45kg/m3) mineral wool insulation between the joists.

 · All nails and screws must be driven flush and securely fixed.

 · The sub-floor should be level, dry and swept clean to allow the Monodeck system to be laid flat.

 · All service penetrations should be isolated from and sealed to the sub-floor.

 · 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.

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

 · The Monodeck 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 Isocheck Flanking Strip around the edge of the Monodeck boards before pushing into position.

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

 · If it is your intention to build off the top of Monodeck 17T, 26T and 30T systems, additional advice should be sought.

 · It is good practice to isolate all partitions built from the sub-floor with Monodeck 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 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.

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

 · When laying the monodeck in a bathroom, 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 should be laid under the bath, toilet and wash basin area and the joints filled with acoustic sealant where necessary.

 · All new ceiling boards should be installed first, especially before any drylining of walls (such as dot & dab) to prevent potential flanking transmission.

 · Ceilings should be boarded with a minimum mass of 20kg/m², and must be fixed to resilient bars or suspended from a metal frame system in accordance with manufacturers recommendations.

 · Appliances and sanitary ware, with rigid plumbing connections that penetrate the system, should be isolated from the sub-floor and floating floor.

 · Should be isolated by cutting a hole up to 10mm larger than the service diameter and filling the gap with a flexible sealant.

 · Ideally, kitchen worktops should be isolated from the wall with a Isocheck flanking isolation strip and trimmed flush with surface before tiling commences.

 · When laying Monodeck in a kitchen we suggest that for best performance the kitchen units are installed on the subfloor on pads, so that the monodeck 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.

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