Summary SOUNDTRAP PLUMBING NOISE REDUCTION
When conventional noise control techniques are performed only a small portion of the required noise reduction is obtainable. Using additional conventional noise reduction techniques i.e. resilient channels, in conjunction with double drywall increases the wall/floor assembly by over 25 mm. (1 "). This increase in wall thickness makes it difficult for the electricians who have installed electrical boxes and also the finish carpenters who have to accommodate door frames and trim to walls and floors /
ceiling assemblies of a non standard thickness.
This invention provides a better family living environment and reduces the amount of noise heard in a home. Particularly the noises made by liquids and solids as they pass through the hot and cold water supply pipes and the drains waste and vent pipes, without significantly increasing the width of the interior wall of floor assemblies.
THE SOUNDTRAP PLUMBING NOISE
CONTROL SYSTEM
BACKGROUND TO THE INVENTION
Plumbing noise has long been known to annoy homeowners. Homebuilders have had a problem identifying how noisy the plumbing would be after construction. Trades people install the plumbing according to the building code. Unfortunately none of the building codes apply to noise problems generated from the mechanical installation work of the pipes. These installations hard fastened the pipes to the building structure and pass pipes through hollow joist and wall cavities. These hollow cavities amplify the noises made by the fluids and solids as they pass through the pipes. The hard fastening of the pipes directly transmits noises in the pipes and does not allow for normal expansion and contraction of these pipes; thus, generating unwanted noise throughout the home.
Conventional plumbing installed to code is functional but noisy.
CONTENTS
1. PETITION
2. ABSTRACT
3. DESCRIPTION
4. CLAIMS
5. DRAWINGS see table of illustrations.
Table of Illustrations Fig 1 Pipe isolation through stud/wall assembly Fig 2 Pipe isolation through wall/floor assembly Fig 3 Pipe isolation supported by structural members.
Fig 4 Pipe isolation between support straps.
Fig 5 Pipe isolation between mechanical clamps and structure.
Fig 6 Pipe isolation between the building structure.
Fig 7 Vertical joist/stud isolation and pipe wrap.
Fig 8 Walllfloor isolation and pipe wrap.
Fig 9 Horizontal structure isolation and pipe wrap.
Fig 10 Hanger strap isolation and pipe wrap.
Fig 11 Mechanical clamp, isolation and pipe wrap.
Fig 12 Structures supporting pipes isolation and pipe wrap.
Fig 13 Wall/floor pipe isolation, pipe wrap and insulation.
Fig 14 Horizontal structure pipe isolation, pipe wrap and insulation.
Fig 15 Pipes supported by hanger straps, isolation, pipe wrap and insulation.
Fig 16 Stacks supported by mechanical clamps. isolation, pipe wrap &
insulation.
Fig 17 Pipes resting on the building structure, isolation, pipe wrap and insulation.
Fig 18 Walllfloor assembly, pipe isolation, pipe wrap, insulation and barrier material.
Fig 19 Pipes supported by structural members, pipe isolation, pipe wrap, insulation and barrier material with sound deadening board.
Fig 20 Pipes supported by hanger straps, pipe isolation, pipe wrap, insulation and barrier material with sound deadening board.
Fig 21 Stacks supported by mechanical clamps, pipe isolation, pipe wrap, insulation and barrier material with sound deadening board.
Fig 22 Pipes resting on the building structure, isolation, pipe wrap, insulation and barrier material with sound deadening board.
SOUNDTRAP PLUMBING NOISE REDUCTION
DESCRIPTION
Research and testing established that plumbing noise is annoying and the loudest and most annoying household plumbing noise is the flushing of the toilet.
According to ASHREA 'The American Society of Heating and Refrigeration Engineers' the living area's in an average North American home is considered quiet at NC30, and bedrooms NC 25. Our testing showed that noise generated by flushing the average home toilet to be 60+dB.
Therefore no known single noise reduction technique was capable of removing enough noise from the plumbing system to make the noise unobtrusive to the people living in the home.
The 'SOUNDTRAP PLUMBING NOISE REDUCTION' achieves the required noise reduction by performing the described processes prior to the installation of the wall/ceiling finishes.
~ Isolating all the pipes from the structure of the home with any kind of vibration isolation (damping material, reduces plumbing noise by up to 15dB.
~ Wrapping all the pipes with any kind of sound absorptive pipe wrap, reduces plumbing noise by up to SdB.
~ Filling the walls, floors and joist cavities with any kind of sound absorptive insulation, reduces plumbing noise by up to 3 dB.
~ Covering the floor or wall cavity or any par thereof that contain pipes with a limp sound absorptive barrier material and or acoustic sound deadening board, reduces the noise by up to an additional 10dB.
This work is performed prior to the installation of conventional construction walllfloor coverings Product description:
Type 1 isolation material Polyethylene foam Typical properties: - Compressive strength ASTM D3575 at 5% 2.5 Tensile strength (psi) ASTM D3575 test E 60 (4.22Kg / cm) Tear strength (Ib.lin) ASTM D3575 test D 19 (8.6Kg I 25.4cm) Density Range ASTMD3575 test C 2.3-3.3 Nominal Thickness 6.2mm. (1/4") Type 2 isolation material.
Re-enforced rough ribbed neoprene sheet Typical properties:- Duro Range 50-60 A scale Specific Gravity 1.23 approx.
Tensile strength Mpa 5.2-9.6 Elongation % 250 - 800 Nominal Thickness 6.2mm (1/4") Type 3 isolation material.
Neoprene sheet Typical properties:- Duro Range 50-60 A scale Specific Gravity 1.23 approx.
Tensile strength Mpa 5.2-9.6 Elongation % 250 - 800 Nominal Thickness 6.2mm (114") Pipe wrap Closed cell polyolefin tube Typical properties:- Density 2 LBS/CU. FT. (.90Kg J 0.92m3) Nominal Thickness 12.5mm. (112") Insulation:
Flglass, Mineral Fibre or Celulose. Density 1-3 LBSICU.FT. (0.45 -1.36 Kg /
0.092 m3) Barrier Material A thin, limp, dense noise barrier material Typical properties:- Specific gravity 2.5 Performance Data: ASTM E 90-90. Frequency Transmission loss (hz) (dB) STC= 24 Nominal Thickness 1.6 mm. (0.070") Sound Deadening Board Sound Deadening Wood Fibreboard Typical properties:-Density 14.5 LBS.CU.FT (6.57Kg I 0.092m3) Traverse Loads at Rupture 10.5 LBS (4.76 Kg ) Linear Expansion 0.3%
Thermal Resistance R 1.5 Compression Strength @ 10% Deformation 20-25 psi (1.41 -1.76 Kglcm) Performance Data: Frequency (hz) Absorption Coefficient 100 0.09 125 0.13 250 0.21 500 0.37 1000 0.30 2000 0.29 4000 0.34 NRC = 0.30 Description of the drawings 1. Fig 1. Shows a typical water supply or drains, waste or vent pipe centred in a joist or stud. The hole drilled to accommodate the plumbing pipe is increases by 12mm.
In order to accommodate the vibration isolation material.
2. Fig 2. Shows a typical water supply or drains, waste or vent pipe centred in a wall or floor assembly. The holes drilled to accommodate the plumbing pipes are increased by 12mm. In order to accommodate the vibration isolation materials 3. Fig 3. Shows a typical plumbing pipe supported by a structural member.
Vibration isolation material is installed between the pipe and structure.
4. Fig 4. Shows a typical plumbing pipe supported by a hanger strap. Vibration isolation material is installed between the pipe and hanger at the point of contact.
5. Fig 5. Shows a typical vertical pipe that is supported by a mechanical clamp.
Vibration isolation material is installed between the clamp and structure and there is no contact between the pipe and structure.
6. Fig 6. Shows a typical plumbing pipe resting on the building structure.
Vibration isolation material is installed in between the pipe and structure.
7. Fig 7. Shows a typical water supply or drains, waste or vent pipe centred in a joist or stud. The hole drilled to accommodate the plumbing pipe is increases by 12mm.
In order to accommodate the vibration isolation material. Pipe wrap is closely fitted to pipe.
8. Fig 8. Shows a typical water supply or drains, waste or vent pipe centred in a wall or floor assembly. The holes drilled to accommodate the plumbing pipes are increased by 12mm. In order to accommodate the vibration isolation materials. Pipe wrap is closely fitted to pipe.
9. Fig 9. Shows a typical plumbing pipe supported by a structural member.
Vibration isolation material is installed between the pipe and structure. Pipe wrap is closely fitted to pipe.
10. Fig 10. Shows a typical plumbing pipe supported by a hanger strap.
Vibration isolation material is installed between the pipe and hanger at the point of contact.
Pipe wrap is closely fitted to pipe.
11. Fig 11. Shows a typical vertical pipe that is supported by a mechanical clamp.
Vibration isolation material is installed between the clamp and structure and there is no contact between the pipe and structure. Pipe wrap is closely fitted to pipe.
12. Fig 12. Shows a typical plumbing pipe resting on the building structure.
Vibration isolation material is installed in between the pipe and structure. Pipe wrap is closely fitted to pipe.
13. Fig 13. Shows a typical water supply or drains, waste or vent pipe centred in a wall or floor assembly. The holes drilled to accommodate the plumbing pipes are increased by 12mm. In order to accommodate the vibration isolation materials.
Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation.
14. Fig 14. Shows a typical plumbing pipe supported by a structural member.
Vibration isolation material is installed between the pipe and structure. Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation.
15. Fig 15. Shows a typical plumbing pipe supported by a hanger strap.
Vibration isolation material is installed between the pipe and hanger at the point of contact.
Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation.
16. Fig 16. Shows a typical vertical pipe that is supported by a mechanical clamp.
Vibration isolation material is installed between the clamp and structure and there is no contact between the pipe and structure. Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation. Wall and floor cavities adjacent to the pipes are also filled with insulation for an additional 1 m.
17. Fig 17. Shows a typical plumbing pipe resting on the building structure.
Vibration isolation material is installed in between the pipe and structure. Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation Wall and floor cavities adjacent to the pipes are also filled with insulation for an additional 1 m.
18. Fig 18. Shows a typical water supply or drains, waste or vent pipe centred in a wall or floor assembly. The holes drilled to accommodate the plumbing pipes are increased by 12mm. In order to accommodate the vibration isolation materials.
Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation. Sound barrier material is mechanically fastened or glued to the exterior faces of the joists or studs over wall and floor cavities that contain plumbing pipes.
19. Fig 19. Shows a typical plumbing pipe supported by a structural member.
Vibration isolation material is installed between the pipe and structure. Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation.
The wall and joist cavities are filled with insulation. Sound barrier material is mechanically fastened or glued to the exterior faces of the joists or studs over wall and floor cavities that contain plumbing pipes. In addition inside these cavities strapping is installed to the edges of these studs~oists and sound deadening board is fastened to these straps. The board is fitted so that the facing of the board is flush with the facing edge of the wall l joist member.
20. Fig 20. Shows a typical plumbing pipe supported by a hanger strap.
Vibration isolation material is installed between the pipe and hanger at the point of contact.
Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation. Sound barrier material is mechanically fastened or glued to the exterior faces of the joists or studs over wall and floor cavities that contain plumbing pipes. In addition inside these cavities strapping is installed to the edges of these studsfjoists and sound deadening board is fastened to these straps. The board is fitted so that the facing of the board is flush with the facing edge of the wall I joist member.
21. Fig 21. Shows a typical vertical pipe that is supported by a mechanical clamp.
Vibration isolation material is installed between the clamp and structure and there is no contact between the pipe and structure. Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation. Sound barrier material is mechanically fastened or glued to the exterior faces of the joists or studs over wall and floor cavities that contain plumbing pipes.
22. Fig 17. Shows a typical plumbing pipe resting on the building structure.
Vibration isolation material is installed in between the pipe and structure. Pipe wrap is closely fitted to pipe. The wall and joist cavities that contain pipes are filled with insulation.
Wall and floor cavities adjacent to the pipes are also filled with insulation for an additional 1 m. Sound barrier material is mechanically fastened or glued to the exterior faces of the joists or studs over wall and floor cavities that contain plumbing pipes. In addition inside these cavities strapping is installed to the edges of these studsroists and sound deadening board is fastened to these straps. The board is fitted to the wall or so that the facing of the board is flush with the facing edge of the wall / joist member.