Monarfloor Deck 9 Overlay Systems
The simplest way of improving the airborne and impact sound performance of an existing timber floor is to overlay the floor with an isolating layer and a new wearing surface. Monarfloor offers three deck overlay systems for such applications.

Monarfloor Deck 9 – designed for projects where the increase in floor level has to be kept to a minimum. Deck 9 consists of 8mm of LRAC foam bonded to 9mm thick moisture resistant MDF, giving an increase in floor level of only 17mm.

Monarfloor 9 deck is a floating floor system that used in conjunction with a resilient bar ceiling creates a system that will attain regulation E level of soundproofing. The flooring system must be laid over an existing sub floor and not direct to joists. The installed system coupled with 100mm 45kg density mineral wool resilient bars and 2 layers of acoustic plaster board will give a system that should produce a 48 db airborne reduction coupled with 48 db impact sound reduction. Both these figures are generously within current regulation E building regulations.

An Alternative product which you might consider is the Monarfloor deck 18 system that is specified in projects where the increase in floor level is not critical, this is also a more economical solution. Deck 18 consists of 8mm of LRAC foam bonded to 18mm thick chipboard, giving an increase in floor level of 26mm.

Monarfloor Deck overlay systems may be used in new build or refurbishment projects, over 18mm chipboard, OSB board or a decking ply sub floor.

Tiling on top of Monarfloor

We advise you follow the guidance issued by the Tile Association in dealing with floating floors, which is:

• Adhesives and grouts must be suitable for floating floors. There are various systems depending on the individual manufacturers detailing.
• Proprietary tile boards or ply, can be overlaid to provide additional water tightness, and or stiffen the floating floor. These must be bonded.
• Tiles should ideally be porcelain. We do not advise thick heavy tiles such as marble etc as they are more susceptible to fracture.
• Tile format must be kept as small as possible (600 x 600mm max). We would advise 450mm x 450mm.

You should also speak to the adhesive manufacturer that is being used as they all have specific detailing to their own products.

Installation of Monarfloor Deck system onto a timber subfloor	Monarfloor Deck overlay system on a timber sub-floor with a resilient bar ceiling

Monarfloor Deck overlay systems should be installed directly onto the sub-floor, in broken bond with all joints glued.

 

 

 

 

Calculate Your Requirements

Monarfloor Deck 9 Full Solution

Monarfloor Deck 9 Boards Only

Sound Insulation Performance Data

	Deck 9	Deck 18	Deck 22
Components	9mm moisture resistant MDF	18mm V313 P5 chipboard	22mm \/313 P5 chipboard
	8mm LRAC foam type II	8mm LRAC foam type II	8mm LRAC foam type II
Thickness	17mm	26mm	30mm
Board Size	1200mm x 600mm	2400mm x 600mm	2400mm x 600mm
Board Weight	5.10kg	22.20kg	26.90kg
Weight/m²	7.08kg	15.41kg	18.68kg
Construction	Monarfloor Deck system on 18mm chipboard deck on 200 x 50mm timber joists, 100mm 45kg/m³ insulation, 20kg/m² double boarded plasterboard ceiling on resilient bars perpendicular to joist direction.
DnTw (Part H)	57dB	58dB	58dB
DnTw + Cth (Approved Doc E)	48dB	49dB	50dB
LnTw	48dB	49dB	50dB