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Monarfloor Deck Overlay Systems
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| Monarfloor Deck overlay system on a timber sub-floor with a resilient bar ceiling |
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 M DF, giving an increase in floor level of only 17mm.
- Monarfloor Deck 18 - designed for domestic timber floors where the existing timber deck remains. Deck 18 consists of a layer of LRAC foam bonded to18mm V313 P5 moisture resistant chipboard.
- Monarfloor Deck 22 - designed for projects where a heavy domestic application is anticipated. Deck 22 consists of a layer of LRAC foam bonded to 22mm V313 P5 moisture resistant chipboard.
Monarfloor Deck overlay systems may be used in new build or refurbishment projects, over 18mm chipboard, OSB board or a decking ply sub floor.
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Deck 9 |
Deck 18 |
Deck 22 |
| Components |
9mm moisture resistant MDF |
18mm V313 P5 chipboard |
22mm \/313 P5 chipboard |
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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 |
15.41 kg |
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 |
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| Installation of Monarfloor Deck system onto a timber subfloor |
Monarfloor Deck overlay systems should be installed directly onto the sub-floor, in broken bond with all joints glued.
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