Grey List / Gray Standard Soundproofing Products: High-Quality Solutions for Noise Control
Glass Fiber Thermal Insulation
Glass Fiber Thermal & Fire protection Insulation is often confused with various other types of insulation on the worldwide market.
More often than not the thermal insulation is used as a cheap substitute to soundproofing grade insulation. Thermal insulation is in comparison is to soundproofing grade is poor in its ability to block noise especially Low frequency ranges which typically associated with bass.
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Thermal Rock 50mm 60kg Density
1dB(A)
Ineffective against most frequencies
Thermal Rock 50mm 80kg Density
4dB(A)
Ineffective against most frequencies
Thermal Rock 50mm 100kg Density
5dB(A)
Ineffective against bass
Thermal Rock 50mm 120kg Density
6dB(A)
Ineffective against bass
Thermal Rock 50mm 140kg Density
7dB(A
The best performance from a thermal insulation product.
Stone Wool Insulation, Fiberglass, Glass Wool
The above insulation slabs have the same soundproofing results as Glass Fibre Insulation except they are not as effective in thermal retention however have other technical improvements depending on application such as fireproofing. Also these insulation types can be made into rolls and at very Low densities and thickness.
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Fiberglass 50mm 60kg Density
1dB(A)
Ineffective against most frequencies
Fiberglass 50mm 80kg Density
4dB(A)
Ineffective against most frequencies
Fiberglass 50mm 100kg Density
5dB(A)
Ineffective against bass
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Glass Wool 50mm 60kg Density
1dB(A)
Ineffective against most frequencies
Glass Wool 50mm 80kg Density
4dB(A)
Ineffective against most frequencies
Glass Wool 50mm 100kg Density
5dB(A)
Ineffective against bass
Typical Metal Stud / U Channel
Metal Studs / U Channels or any other metal structure building materials are a very effective solution when building a fire rated wall, typical office wall or even ceiling. But for best practice soundproofing they are the equivalent of a pitch fork striking a surface and resonating when sound energy come in contact with them.
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Metal Stud / C Channel 8ft < 0.095
-2dB(A)
Create Noise
Metal Stud / C Channel 10ft < 0.095
-2.2dB(A)
Create Noise
Metal Stud / C Channel 8ft < 0.095 (treated)
-1dB(A)
Ineffective
Metal Stud / C Channel 10ft < 0.095 (treated)
-1.2dB(A)
Ineffective
Typical Membranes used for soundproofing
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Mass Loaded Vinyl
Mass loaded Vinyl is basically the stuff you use for Vinyl flooring, in a lot of cases its actually a recycled products that came around as a cheap way to turn waste vinyl into a big profit maker. The results from MSV only become usefully at greater thickness and then the cost implication is not practical. The other problem is that after a certain thickness is reach the material becomes very conductive.
Mass Loaded Vinyl 0.25mm
0dB(A)
Ineffective
Mass Loaded Vinyl 0.5mm
0dB(A)
Ineffective
Mass Loaded Vinyl 0.75mm
0.5dB(A)
Ineffective
Mass Loaded Vinyl 1mm
1dB(A)
Ineffective
Mass Loaded Vinyl 2mm
2dB(A)
Ineffective
Mass Loaded Vinyl 3mm
3dB(A)
Ineffective
Mass Loaded Vinyl 4mm
4dB(A)
Ineffective
Mass Loaded Vinyl 5mm
5dB(A)
Ineffective
Mass Loaded Vinyl 6mm
6dB(A)
Very Poor
Mass Loaded Vinyl 7mm
7dB(A)
Very Poor
Mass Loaded Vinyl 8mm
8dB(A)
Very Poor
Mass Loaded Vinyl 9mm
9dB(A)
Very Poor
Mass Loaded Vinyl 10mm
12dB(A)
Useful (but too heavy and costly)
Mass Loaded Vinyl 15mm
18dB(A)
Useful (but too heavy and costly)
Mass Loaded Vinyl 20mm
20dB(A)
Useful (but too heavy and costly)
Mass Loaded Vinyl 25mm
15dB(A)
Thickness is working against the materials and flanking noise is occurring
Mass Loaded Vinyl 30mm
1515dB(A)
Thickness is working against the materials and flanking noise is occurring
Polymer / Rubber Sheets made by other companies
There is a massive selection of rubber and polymers standard building materials sold as soundproofing specialist materials. For legal reasons we are not able to give details of their brand names so for the purposes of comparison we will give a non revealing descriptive name.
Typical used Isolation Sheets / Isolation Cover Type Sheeting 1mm
1dB(A)
Natural Rubber / Neoprene with High Hardness Index common of normal industrial materials.
Typical used Isolation Sheets / Isolation Cover Type Sheeting 2mm
2dB(A)
Natural Rubber / Neoprene with High Hardness Index common of normal industrial materials.
Typical used Isolation Sheets / Isolation Cover Type Sheeting 4mm
4dB(A)
Natural Rubber / Neoprene with High Hardness Index common of normal industrial materials.
Typical used Isolation Sheets / Isolation Cover Type Sheeting 6mm
6dB(A)
Natural Rubber / Neoprene with High Hardness Index common of normal industrial materials.
Typical used Isolation Sheets / Isolation Cover Type Sheeting 8mm
8dB(A)
Natural Rubber / Neoprene with High Hardness Index common of normal industrial materials.
Typical used Isolation Sheets / Isolation Cover Type Sheeting 10mm
10-12dB(A)
Natural Rubber / Neoprene with High Hardness Index common of normal industrial materials.
Gym Flooring
Gym Flooring Sheeting 6mm
4dB(A)
Ineffective against impact noise & vibration
Gym Flooring Sheeting 10mm
7dB(A)
Ineffective against impact noise & vibration
Gym Flooring Sheeting 20mm
12dB(A)
Low reduction impact noise & vibration
Typical Standard Building Materials used for Soundproofing
Material / Product Name (or descriptive Name)
AVG dB(A)
Reduction
Remarks
Man made / Natural Gypsum Boards
Standard (S.E.A) Man Made / Natural Gypsum Board (Weight Reduced Chemical Added) 8mm
3dB(A)
Very Low effectiveness
Standard (S.E.A) Man Made / Natural Gypsum Board
(Weight Reduced Chemical Added) 12mm
5dB(A)
Very Low effectiveness against music
Standard (S.E.A) Man Made / Natural Gypsum Board (Weight Reduced Chemical Added) 15mm
7dB(A)
Low effectiveness against music
Standard Man Made / Natural Gypsum Board 8mm
4dB(A)
Low effectiveness
Standard Man Made / Natural Gypsum Board 12mm
6dB(A)
Low effectiveness
Standard Man Made / Natural Gypsum Board 15mm
7dB(A)
Low effectiveness
Cement Board 12mm
4dB(A)
Conductive (Flanking Result reduces effectiveness to 3dB(A)
Cement Board 15mm
5dB(A)
Conductive (Flanking Result reduces effectiveness to 4dB(A)
Doubling Up
Standard (S.E.A) Man Made / Natural Gypsum Board (Weight Reduced Chemical Added) 15mm + Standard (S.E.A) Man Made / Natural Gypsum Board (Weight Reduced Chemical Added) 15mm
10-15dB(A)
The Result of using these advertised special sealants makes little or no difference to the use of two boards. Note: doubling up on boards will have little results against bass
Standard (S.E.A) Man Made / Natural Gypsum Board (Weight Reduced Chemical Added) 15mm + No Sealant + Standard (S.E.A) Man Made / Natural Gypsum Board (Weight Reduced Chemical Added) 15mm
10-15dB(A)
The Result of using these advertised special sealants makes little or no difference to the use of two boards. Note: doubling up on boards will have little results against bass
The Result of using these advertised special sealants makes little or no difference to the use of two boards. Note: doubling up on boards will have little results against bass
Cement Board15mm + Green/Blue/White/Gray So Called Special Sealant + Cement Board 15mm
9-11dB(A)
The Result of using these advertised special sealants makes little or no difference to the use of two boards. Note: doubling up on boards will have little results against bass
Plywood
These thin wood sheets conduct sound and because of the thin layers that make up one board these thin sheets resonate like a read instrument and alLow for noise to pass through them when the noise power that makes contact at high level of energy easily and without effort.
Plywood S.E.A 6mm
2dB(A)
Conductive and creates noise
Plywood S.E.A 12mm
2dB(A)
Conductive and creates noise
Plywood S.E.A 15mm
4dB(A)
Conductive and creates noise
Plywood S.E.A 20mm
6dB(A)
Conductive and creates noise
Plywood S.E.A 25mm
7dB(A)
Conductive and creates noise
Typical Glass Table
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Plain Glass 6mm
2dB(A)
Not useful
Plain Glass 8mm
4dB(A)
Not useful
Double Glazed Example 1
Two Panes of Glass that are mounted into a metal frame with a small air gap between.
Double Glazed Glass 8mm Panel
4dB(A)
Low effectiveness
Double Glazed Glass 12mm Panel
6dB(A)
Low effectiveness
Double Glazed Glass 15mm Panel
8dB(A)
Low effectiveness
Double Glazed Example 2
Two Panes of Glass that are mounted into a metal frame with a large air gap between.
Double Glazed Glass 8mm Panel
3dB(A)
Low effectiveness
Double Glazed Glass 12mm Panel
5dB(A)
Low effectiveness
Double Glazed Glass 15mm Panel
7dB(A)
Low effectiveness
Laminated Glass Example 1
Two Panes of Glass that are laminated using a crud method of lamination i.e sealant around the perimeter.
Crud Laminated Glass 8mm Panel
3dB(A)
Low effectiveness
Crud Laminated Glass 12mm Panel
4dB(A)
Low effectiveness
Crud Laminated Glass 15mm Panel
5dB(A)
Low effectiveness
Laminated Glass Example 2
Two Panes of Glass that are laminated using a factory laminated method using a standard non specialist layer that would have been designed for sound.
Standard Laminated Glass for safety 8mm Panel
8dB(A)
So So
Standard Laminated Glass for safety 12mm Panel
12dB(A)
Not too bad
Standard Laminated Glass for safety 15mm Panel
15dB(A)
Not too bad
Flooring
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Laminated Floor
-1dB(A)
Not useful Conductive
Carpet Floor
1dB(A)
Not useful
Concrete Flooring
Concrete is a conductive material and when used for flooring you can not just simply apply and gain any usefull benfit. Allthough it can have some effect at blocking out noise when the source level is Low in intensity. When the source level is high intestity from >50dB upwards the concrete because resonant and high levels of flanking noise occures that results in a failour of the material.
Concrete Floor 10mm
Direct 3dB(A) Flanking -20dB
Concrete is Conductive and Can Vibrate when in contact with high energy or bass.
Concrete Floor 20mm
Direct 3dB(A) Flanking -15dB
Concrete is Conductive and Can Vibrate when in contact with high energy or bass.
Concrete Floor 30mm
Direct 3dB(A) Flanking -10dB
Concrete is Conductive and Can Vibrate when in contact with high energy or bass.
Concrete Floor 50mm
Direct 3dB(A) Flanking -5dB
Concrete is Conductive and Can Vibrate when in contact with high energy or bass.
The above Table is to give an idication of how concreate is inifective as a flooring solution when used on its own.
Concrete Floor 50mm with Rebar Inforcement
Caution
Flanking Noise is Certain
Solid Concrete Floor Structure 400mm Slab
Direct 30dB(A) Flanking -5dB
Flanking still occures even if the concrete thickness is increased as the material is still conductive
Specialist Sealants
Material / Product Name (or descriptive Name)
AVG dB(A) Reduction
Remarks
Beware of specialist sealants on the market
There are plenty of brands on the market selling standard sealant as a specialist noise control material that if by magic will add high levels of sound reduction, anti vibration and a number of results that are not able to be proven by science. They come is all shapes and colours and offer little or no improvement.
Pink, Blue, Green, YelLow Colour Specialist Sealant: Using on its own as a material based on a 1mm coverage p/m2
0dB(A)
Nothing Happened
Pink, Blue, Green, YelLow Colour Specialist Sealant: Using on its own as a material based on a 2mm coverage p/m2
0dB(A)
Nothing Happened
Pink, Blue, Green, YelLow Colour Specialist Sealant: Using on its own as a material based on a 3mm coverage p/m2
0dB(A)
Nothing Happened
Pink, Blue, Green, YelLow Colour Specialist Sealant: Using on its own as a material based on a 4mm coverage p/m2
0.2dB(A)
Nothing usefull at all
Using as a system
16mm Board + Colour Sealant 16mm Board
0dB(A)
The Sealant made no difference to the noise reduction of the two boards sandwidged together
Using until a result can be gained
Colour Sealant spead over an area @ 10mm Thickness left to dry to form a sheet then tested
3-5dB(A) depending on Hz
The Sealant was only able to reduce noise when it was formed into a sheet at 10mm thickness. This is no difference to then buying Silicone Sheets (which is very expensive)
Colour Sealant spead over an area @ 15mm Thickness left to dry to form a sheet then tested
5-7dB(A) depending on Hz
The Sealant was only able to reduce noise when it was formed into a sheet at 15mm thickness. This is no difference to then buying Silicone Sheets (which is very expensive)