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SoundStop.co.uk
UK Soundproofing Specialists for the Home
0208 123 9710
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DB Boards   (Unit Price £31.95)

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Board Size

1200mm x 800mm

Thickness

15mm

Weight/ m2

18.0 kg/m2

Density

1200kg/m3

DB boards are an excellent product designed to reduce the transmission of impact and airborne sound between two spaces. The product is our number one choice when trying to improve the soundproofing from noisy neighbors downstairs.
Many customers get confused by the large array of heavy rubber mats on the market which are great at stooping impact sound transmission traveling downwards but are less effective at the more common problem that affects people , and that is the airborne sound being transmitted upwards. DB boards can be twice as effective at reducing airborne sound transmission as the heavy 15kg mats available on the market.

An excellent product to augment the performance of the DB boards is the Tecsound 50 membrane which can be laid above or below the DB boards. This is a true DIY solution with the only skill necessary being the ability to cut ( then tape seal ) the DB boards.

Product Summary

  • 36dB (Rw, -4Ctr) Airborne sound insulation
  • 21dB (;Lw) Impact sound insulation
  • Soundproofing for Walls, Floors and Ceilings whether constructed from timber, steel or solid substrate
  • For new build, conversion, remedial and refurbishment projects
  • Db Boards are a Natural Product which are breathable, pollutant free and odourless
  • Only 15mm thick which avoids problems with door thresholds and re-fitting skirting in refurbishments
  • Easy to fit and cut with simple butt joints and does not require flanking strips
  • Speed of installation time and low cost labour
  • Acoustic insulation which adds Thermal Mass to lightweight structures
  • Excellent with under floor heating
  • Comparable sound insulation results to Robust Detail floating floors which are a minimum 107mm thick
  • Provides a solid floor feel underfoot unlike other squashy acoustic floor systems
  • Sound insulation performance actually improves by 3dB when a hard surface is fitted on to it
  • Supports 5kN/; loading criteria application usage

This product can be used to very effectively soundproof a floor . Ideally it should be used in combination with AMW60mm.

You can use the following calculators to work out your amounts


Click here to calculate DB Boards for floors, walls, or ceiling
Click here to calculate DB boards +acoustic mineral wool for floors
Click here to calculate DB boards +techsound 50 membrane
Click here to calculate DB boards +techsound 50 membrane+acoustic mineral wool

Product Application

DB Board main applications are in the following.
Soundproofing ceilings
Soundproofing separating walls
Soundproofing party walls
Soundproofing Home Cinema and Entertainment rooms

Product Description

DB Boards are a cross fluted engineered card and hardboard carcass containing a finely mixed and compacted loose quartz sand mixture, which exhibits high mass and density with unique self-decoupling properties

DB Board Core

 

Cutting DB Boards

DB Boards are a cross fluted engineered carcass with a finely compacted loose filler material inside and as such must be taped, to reseal, when cut. Simply run the tape as shown below and the board is sealed. The boards themselves can most easily be cut with a stanley knife, jigsaw or a hand saw. It is always best to cut the DB board laid flat. Post cutting immediately seal the edges to minimise filler spillage.

 

Fitting Floor finishes over DB Boards

Where the developer has opted for a traditional 18mm or 22mm tongue & groove overlay then all flooring finishes are treated conventionally and the following instructions are redundant.

Fitting Solid Wood, Engineered Wood, Parquet & Laminate Floors Directly over DB boards

1. Wood flooring must be acclimatised in the fitting location prior to fitting for the length of time specified by the flooring manufacturer. This prevents shrinkage, cupping and warping at a later date.
2. Prior to installation, the installer has the final responsibility to inspect the finished flooring as to grade, manufacture and factory finish. The installer must use reasonable selectivity and discard or cut off pieces with deficiencies.
3. It is imperative that the expansion gap is carefully adhered to, as this is also necessary to prevent the transmission of sound from the wood flooring to the adjoining walls which in turn would transmit flanking noise. This gap is usually 6mm (12mm when floating) around all vertical objects and the whole perimeter of the room.

Mechanical fixing (usually 6mm expansion gap):

a. Solid wooden flooring must not be nailed directly to DB boards or through to the sub-deck, which would cause a sound bridge. For ‘Hidden Nail Technique’ glue 9mm (minimum) plywood, OSB or chipboard on top of DB boards with wood flooring glue. Leave a 6mm gap between the wooden layer and the walls (and any other vertical structures) to reduce vibration and flanking noise.
b. Then nail the timber flooring directly into 9mm top layer only, leaving expansion gaps as per manufacturer’s instructions. Leave a 6mm gap between the flooring and the walls and any other vertical structures. The gap at the perimeter can be sealed with flexible acoustic sealant.

Bonding (usually 6mm expansion gap):

a. If the installer requires the option of being able to remove the wood flooring at a much later date without damaging the DB boards acoustic layer, then a wooden overlay must be laid and bonded to DB boards - 3mm to 6mm thick plywood is common. It is important to leave a 6mm expansion gap around vertical objects and the whole perimeter of the room.
b. For bonding wooden flooring, use the wooden flooring adhesive as recommended by the flooring manufacturer (usually rubberised wood flooring glue) which should be spread evenly on the floor with a medium notched trowel, as per the flooring manufacturer’s instructions.
c. Always check for an adequate adhesive bond before proceeding.

Floating (usually 12mm expansion gap, 6mm for Laminate):

a. Flooring suitable for fitting as a floating layer, as per manufacturer’s guidance, (usually over 7mm thick), should be laid directly over DB boards without underlay for the best acoustic performance.
b. It is important to leave a 12mm expansion gap, as recommended by flooring manufacturer, around vertical objects and the whole perimeter of the room. For laminate use the manufacturers recommended 6mm gap.
c. Joint Sealant for Laminate Flooring can be used to permanently protect laminate from moisture effects, if necessary.

Fitting Ceramic Tiles Directly over DB boards

a. It is recommended to use marine plywood as your sub floor, if possible.
b. If floor height is not an issue it is recommended to lay a Tile Backing Board or a 6mm Marine (WBP) Plywood board over DB boards which is bonded to DB boards using a grab adhesive.   This will protect the DB boards acoustic floor should you wish to change the tiles in the future.  It is imperative to leave a 6mm expansion gap between the tile backing board / plywood and any vertical objects, as well as the whole perimeter of the room, and fill the gap with a permanently flexible and waterproof sealant, to reduce flanking noise.
c. If floor height is an issue, place a 100mm wide fibre glass mesh ‘scrim tape’ over all DB boards joints.  Then lay the tiles in a thin bed of rapid setting flexible cement based tile adhesive, suitable for wooden floors.  The scrim tape ensures no movement will take place due to vapour in bathrooms and kitchens.  If tiling a wet room, please see the next section.

Fitting Ceramic Tiles Directly over DB boards in Wet Rooms

a. It is recommended to use marine ply as your sub floor, if possible.
b. DB boards is moisture resistant and its performance will not deteriorate in these applications.  Do not knock boards tightly together - simply lay lightly butted allowing for minimal expansion. 
c. In high moisture areas it is important to lay a vapour barrier, or else it is recommended that a Tile Backing Board or a 6mm Marine (WBP) Plywood board should first be laid and bonded over DB boards using a grab adhesive.   It is imperative to leave a 6mm expansion gap between the tile backing board and any vertical objects, as well as the whole perimeter of the room, and fill the gap with a permanently flexible and waterproof sealant, to reduce flanking noise.

Fitting Carpet Directly over DB boards

Carpets requiring an independent underlay:
a. DB boards is not an ‘underlay’; a good quality carpet underlay is still required to protect the carpet and DB boards.
b. Carpet grippers can be bonded to DB boards in the same manner as for solid concrete floors; using a rapid set grab adhesive recommended for carpet grippers.  Carpet tacks or nails ( if used ) are hammered through the carpet and into the carpet gripper - however it is imperative that these nails do not pass through into the sub-deck below.  Common carpet gripper nails are insufficient length to pass through the 15mm DB boards, but it is the installer’s responsibility to confirm this on site. Ideally there should not be penetrations through the carpet gripper but further screws can be added to support grippers as long as they don't exceed 500mm centres. What should be avoided is multiple penetrations though the board over a small area.

Carpets with a pre-bonded foam or felt underlay:

a. These carpets usually incorporate a thin foam or felt backing, insufficient to spread point pressure load, and therefore require a 3mm to 6mm plywood bonded to DB boards prior to fitting the carpet.
b. The plywood is bonded to the DB boards leaving a 6mm expansion gap around all vertical objects and the whole perimeter of the room, which can be filled with permanently flexible acoustic sealant.
c. Foam backed carpets should always have a brown building paper laid prior to fitting which prevents the foam from sticking to the floor when its glue seeps out.

Fitting Linoleum & Vinyl Directly over DB boards

a. Linoleum or Vinyl cannot be fitted directly on the surface of DB boards.  For commercial applications use a hard Linoleum and Vinyl subfloor system floating over DB boards or 6mm plywood bonded to DB boards.  For domestic applications, bond 3mm to 6mm plywood or similar to DB boards. 
b. The plywood is bonded to the DB boards leaving a 6mm expansion gap around all vertical objects and the whole perimeter of the room, which can be filled with permanently flexible acoustic sealant.

Down Load Data Sheets

 

Phonewell boards
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