GB2451164A - Insulated rainwater gutter - Google Patents

Insulated rainwater gutter Download PDF

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Publication number
GB2451164A
GB2451164A GB0810757A GB0810757A GB2451164A GB 2451164 A GB2451164 A GB 2451164A GB 0810757 A GB0810757 A GB 0810757A GB 0810757 A GB0810757 A GB 0810757A GB 2451164 A GB2451164 A GB 2451164A
Authority
GB
United Kingdom
Prior art keywords
gutter
channel
lower channel
fastening portions
upper channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0810757A
Other versions
GB0810757D0 (en
Inventor
Stuart Malcolm Campbell
Robert Rae
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CGL SYSTEMS Ltd
Original Assignee
CGL SYSTEMS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CGL SYSTEMS Ltd filed Critical CGL SYSTEMS Ltd
Publication of GB0810757D0 publication Critical patent/GB0810757D0/en
Publication of GB2451164A publication Critical patent/GB2451164A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/064—Gutters
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/064—Gutters
    • E04D13/0648—Gutters comprising provisions for heat insulation, e.g. an insulation layer

Abstract

A gutter 10 for a building comprises an upper channel 12 for collecting and transporting rainwater and a lower channel 14 spaced apart from the upper channel 12. The lower channel 14 features two laterally spaced fastening portions 20 for fastening the gutter 10 to one or more support members of the building. An insulating material 18 is located between the upper and lower channels 12, 14. The gutter 10 also includes at least one integrated lateral support member 24 extending between the two fastening portions 20. The lateral support member 24 is attached to one of the upper or lower channels 12, 14. A method of manufacturing a gutter is also provided. Preferably, the support member is located between the lower channel and the upper channel, or alternatively, it may be located between the insulating material and the upper channel. A layer of waterproof material may be provided over the upper channel, extending over the edge of the fastening portions 20 of the lower channel.

Description

Improvements in or relating to puttering The present invention relates to a gutter for a building, particularly, but not exclusively, to a gutter for an industrial or commercial building and a method of manufacturing a gutter.
Gutters are provided on buildings for the collection and transportation of rain water away from the roof of the building to a drainage system. For industrial or commercial buildings, an internal gutter forms one of the building components used to form the roof of the building.
Typically, the gutter for these types of buildings comprises two generally U-shaped trough portions nested and spaced apart with a layer of thermally insulating material provided between the trough portions.
A flange is provided at the upper edge of the side panel of each trough portion for fastening the gutter to purlins which are used to support the roofing panels of the roof.
The trough portions are conventionally formed from galvanised steel or aluminium sheeting. Traditionally, the upper trough is formed from a thicker steel to provide greater structural strength to the gutter. This allows the gutter to withstand the weight of collected rain water or the weight of a person walking along the gutter. Such a gutter is often referred to as a "self-supporting" gutter, as it requires no additional strengthening and may be mounted directly to the purlins of the building.
In order to reduce the amount of steel used to make the gutter, it is known to reduce the thickness of the upper trough and mount the gutter on a number of separate support straps which are fastened to the purlins of the building. In this case the gutter is "non-self-supporting" and the additional strength is provided by the support straps. However, providing a number of separate support straps increases the complexity and cost of assembly of such a gutter system, as the support straps are required to be fixed separately to the purlins before the gutter is mounted thereon.
In order to comply with heat retention building regulations, it is also known to provide a "thermal break" in the upper trough at the flange portion. This prevents heat being transferred through the upper trough and out the building. One known method of providing a thermal break between the upper and lower trough is to provide a thermal break member attached between the upper and lower trough portions at the flange portion. Such a thermal break member prevents heat transfer through the upper trough.
The fixing of the thermal break member between the upper and lower trough also provides enough strength to the gutter such that the gutter remains self-supporting. However, providing a thermal break member again increases the complexity and cost of assembly of such a gutter system, as the thermal break member is required to be attached to separately to both the lower and upper troughs.
It is an object of the present invention to provide a gutter for a building and a method of assembling a gutter which obviates or mitigates one or more of the disadvantages referred to above.
According to a first aspect of the present invention there is provided a gutter for a building comprising: an upper channel for collecting and transporting rainwater; a lower channel spaced apart from the upper channel, the lower channel having two laterally spaced fastening portions for fastening the gutter to one or more support members of the building; an insulating material located between the upper and lower channels; and at least one integrated lateral support member extending between the two fastening portions, the lateral support member being attached to one of the upper or lower channels.
Preferably, the support member is attached to the lower channel. More preferably, the support member is attached to the lower channel at the two fastening portions.
Preferably, the support member is attached to the upper channel.
Preferably, the support member is located below the lower channel.
Preferably, the gutter further comprises one or more brace members adapted to attach one of the fastening portions of the lower channel to the upper channel. More preferably, the brace members are adapted to attach the support member to the upper channel.
Preferably, the support member is located between the lower channel and the upper channel. More preferably, the support member is located between the insulating material and the upper channel.
Preferably, the support member is located above the upper channel.
Preferably, the upper channel and the lower channel are arranged such that a lateral gap exists between the upper channel and the fastening portions of the lower channel.
Preferably, the support member is formed from sheet metal.
Preferably, the upper channel and the lower channel are substantially U-shaped.
Preferably, the support member is substantially U-shaped.
Preferably, the gutter comprises a plurality of integrated lateral support members.
Preferably, the plurality of integrated lateral support members are longitudinally spaced along the length of the gutter.
Preferably, the fastening portions of the lower channel are formed by extending the upper edge of the lower channel laterally.
Preferably, the upper channel and the lower channel are formed from sheet metal.
Preferably, the gutter further comprises a layer of water-proof material on top of the upper channel, the water-proof material extending over the edge of the fastening portions of the lower channel.
According to a second aspect of the present invention there is provided a method of manufacturing a gutter for a building comprising the steps of: positioning an insulating material between an upper channel and a lower channel, the upper channel for collecting and transporting rainwater and the lower channel having two laterally spaced fastening portions for fastening the gutter to one or more support members of the building; positioning at least one lateral support member between the two fastening portions of the lower channel; and attaching the at least one lateral support member to the upper channel or the lower channel.
Preferably, the support member is attached to the lower channel. More preferably, the support member is attached to the lower channel at the two fastening portions.
Preferably, the support member is attached to the upper channel.
Preferably, the support member is located below the lower channel.
Preferably, the method comprises the further step of attaching one or more brace members between one of the fastening portions of the lower channel and the upper channel. More preferably, the one or more brace members are attached between the support member and the upper channel.
Preferably, the support member is located between the lower channel and the upper channel. More preferably, the support member is located between the insulating material and the upper channel.
Preferably, the support member is located above the upper channel.
Preferably, the upper channel and the lower channel are arranged such that a lateral gap exists between the upper channel and the fastening portions of the lower channel.
Preferably, a plurality of lateral support members are attached to the upper channel or the lower channel.
Preferably, the plurality of integrated lateral support members are longitudinally spaced along the length of the gutter.
Preferably, the method comprises the further step of applying a layer of water-proof material on top of the upper channel, the water- proof material extending over the edge of the fastening portions of the lower channel.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:-Fig. 1 is a perspective view of a gutter for a building in accordance with a first embodiment of the present invention; and Fig. 2 is perspective view of a gutter for a building in accordance with a second embodiment of the present invention.
Fig. 1 illustrates a gutter 10 for a building. The gutter 10 comprises an upper channel 12 and a lower channel 14. The upper and lower channels 12, 14 are formed from, for example, sheet steel and are folded in such a manner that the channels 12, 14 are substantially U-shaped. Folding the upper channel 12 in this manner provides a trough portion 16 for the collection and transportation of rain water.
The upper and lower channels 12, 14 are typically manufactured from 0.6mm thick sheet steel. Although, it should be appreciated that the thickness of steel used may vary depending on the type of building the gutter 10 is to be mounted and the amounts of rainwater the gutter 10 is expected to collect.
Between the upper channel 12 and the lower channel 14 there is positioned an insulating material 18. The insulating material 18 prevents loss of heat from the building through the gutter 10. The lower channel 14 is therefore spaced apart from the upper channel 12 with the insulating material 18 sandwiched therebetween.
The lower channel 14 includes two laterally spaced fastening portions 20 which are used to fastening the gutter 10 to the purlins of the building (not shown). The fastening portions 20 are formed by simply extending the upper edge 22 of the lower channel 14 in the lateral direction.
The gutter 10 also comprises a plurality of integrated lateral support members 24. The support members 24 extend laterally between the two fastening portions 20 of the lower channel 14. The support members 24 are formed from, for example, sheet steel and are folded in such a manner that they are substantially U-shaped and are complimentary in shape to that of the upper channel 12 and insulation material 18. The support members 24 are longitudinally spaced along the length of the gutter 10.
The support members 24 are typically manufactured from 1.2mm sheet steel. Although, it should be appreciated that the thickness of steel used can again vary depending on the type of building the gutter 10 is to be mounted and the amounts of rainwater the gutter 10 is expected to collect.
The support members 24 provide structural strength to the gutter 10.
In the embodiment illustrated in Fig. 1, the support members 24 are located between the upper channel 12 and the insulating material 18, and therefore between the upper channel 12 and the lower channel 14. The support members 24 are attached to the lower channel 14 at the fastening portions 20. The support members 24 are also attached to the upper channel 12 at the upper edge 26 thereof and at the trough portion 16. The support members 24 are riveted to the upper and lower channels 12, 14.
Although, it should be appreciated that any suitable method of attachment could be used to attach the support members 24 to the upper and lower channels 12, 14.
As illustrated in Fig. 1, the upper channel 12 and the lower channel 14 are arranged such that a lateral gap 28 exists between the upper channel 12 and the fastening portions 20 of the lower channel 14. The lateral gap 28 prevents the transfer of heat from the fastening portions 20 of lower channel 14 to the upper channel 12. Although the support members 24 provided a slight thermal path between the fastening portions 20 of the lower channel 14 and the upper edge 26 of the upper channel 12, the heat loss over the total length of the gutter 10 is negligible.
The gutter 10 also comprises a layer of water-proof material 30 (partially illustrated in Fig. 1) which is applied to the top surface of the upper channel 12. The water-proof material 30 covers the upper channel 12 and extends to also cover the fastening portions 20 of the lower channel 14.
The water-proof material 30 is, for example, made from a PVC membrane.
However, it should be appreciated that any other suitable material may be used to provide water-proofing to the gutter 10.
The gutter 10 of Fig. 1 is manufactured by firstly laying the insulating material 18 on top of the lower channel 14. The support members 24 are then placed on top of the insulating material 18 and riveted to the fastening portions 20 of the lower channel 14. The upper channel 12 is then laid on top of the support members 24 and riveted to the support members 24. Finally, the layer of water-proof material is applied to the top of the upper channel 12 and fastening portions 20 of the lower channel 14.
The assembled gutter 10 is then ready to be assembled directly to the purlins of a building.
The integrated support members 24 allow the thickness of the steel used for the upper and lower channels 12, 14 to be reduced, as the extra structural strength is provided by the support members 24. This reduces the cost of the gutter 10. Furthermore, making the support members 24 part of the gutter 10 means that it is possible to reduce the thickness of the support members 24 themselves. This is because riveting the support members 24 to the lower channel 14 increases the strength of the gutter 10, which thus allows the thickness of the support members 24 to be reduced. This reduces the cost of the gutter 10, as less steel can be used in the manufacture of the gutter 10. For example, conventional support straps which are separate from the gutter are typically 6mm thick, whilst it is possible in the present invention to reduce the thickness of the support members to 1.2mm.
Also, the fact that the support members 24 are integrated with the gutter itself means that the gutter 10 is a "one-piece" self-supporting gutter, i.e. it does not require additional supporting elements when it is mounted to a building. This means that the gutter 10 may be very easily assembled to a building without the need for additional components such as separate support straps etc. This reduces the complexity and cost involved in fitting the gutter 10 to the building.
The lateral gap 28 between the upper channel 12 and the fastening portions 20 of the lower channel 14 provides a thermal break between the fastening portions 20 of lower channel 14 and the upper channel 12. This maintains the thermal efficiency of the gutter 10 such that the gutter 10 complies with heat retention building regulations.
Fig. 2 illustrates a second embodiment of the gutter 100 of the present invention. The gutter 100 of Fig. 2 is similar to the gutter 10 of Fig. 1, the major difference being that the support members 124 are located between the lower channel 114 and the insulating material 118. In this case the gutter 100 is provided with a plurality of brace members 132 which are used to attach the lower channel 114 to the upper channel 112. The brace members 132 are riveted to the fastening portions 120 of the lower channel 114 and the upper edge 126 of the upper channel 112.
The upper channel 112 and the lower channel 114 are again arranged such that a lateral gap 128 exists between the upper channel 112 and the fastening portions 120 of the lower channel 114.
The gutter 10, 100 therefore obviates or mitigates the disadvantages of previous proposals by providing an inexpensive, self-supporting gutter which satisfies the heat retention building regulations. As described above, the gutter 10, 100 can be produced cheaply as the thickness of the upper and lower channels 12, 112, 14, 114 can be reduced by providing the support members 24, 124 integrally with the gutter 10, 100. Also, providing a lateral gap 28, 128 between the upper channel 12, 112 and the fastening portions 20, 120 of the lower channel 14, 114 maintains the thermal efficiency of the gutter 10, 100.
Modifications and improvements may be made to the above without departing from the scope of the present invention. For example, although the support members 24, 124 have been illustrated and described as being between the upper channel 12, 112 and the lower channel 14, 114, it should be appreciated that the support members 24, 124 could be located either below the lower channel 14, 114 or above the upper channel 12, 112. In either case the support members remain integrated with the gutter 10, 100.
When the support members 24, 124 are located below the lower channel 14, 114, the fact that the support members 24, 124 are thin means that the gutter 10 is substantially flush with the purlins of the building. Therefore, there are substantially no gaps between the gutter 10 and the purlins that are required to be sealed. This again reduces the complexity and cost involved in fitting the gutter 10 to the building.
Furthermore, although it has been illustrated and described above that the support members 124 are attached to the lower channel 114 at the fastening portions 120 thereof, it should be appreciated that the support members 124 could be attached at any other suitable location on the lower channel 114.

Claims (11)

  1. Claims 1. A gutter for a building comprising: an upper channel for collecting and transporting rainwater; a lower channel spaced apart from the upper channel, the lower channel having two laterally spaced fastening portions for fastening the gutter to one or more support members of the building; an insulating material located between the upper and lower channels; and at least one integrated lateral support member extending between the two fastening portions, the lateral support member being attached to one of the upper or lower channels.
  2. 2. A gutter as claimed in claim 1, wherein the upper channel and the lower channel are arranged such that a lateral gap exists between the upper channel and the fastening portions of the lower channel.
  3. 3. A gutter as claimed in claim 1 or claim 2, wherein the support member is located between the lower channel and the upper channel.
  4. 4. A gutter as claimed in any preceding claim, wherein the support member is located between the insulating material and the upper channel.
  5. 5. A gutter as claimed in any preceding claim, wherein the fastening portions of the lower channel are formed by extending the upper edge of the lower channel laterally.
  6. 6. A gutter as claimed in any preceding claim, wherein the gutter further comprises a layer of water-proof material on top of the upper channel, the water-proof material extending over the edge of the fastening portions of the lower channel.
  7. 7. A method of manufacturing a gutter for a building comprising the steps of: positioning an insulating material between an upper channel and a lower channel, the upper channel being for collecting and transporting rainwater, and the lower channel having two laterally spaced fastening portions for fastening the gutter to one or more support members of the building; positioning at least one lateral support member between the two fastening portions of the lower channel; and attaching the at least one lateral support member to the upper channel or the lower channel.
  8. 8. A method of manufacturing a gutter as claimed in claim 7, wherein the upper channel and the lower channel are arranged such that a lateral gap exists between the upper channel and the fastening portions of the lower channel.
  9. 9. A method of manufacturing a gutter as claimed in claim 7 or claim 8, wherein the support member is positioned between the lower channel and the upper channel.
  10. 10. A method of manufacturing a gutter as claimed in of claims 7 to 9, wherein the support member is positioned between the insulating material and the upper channel.
  11. 11. A method of manufacturing a gutter as claimed in any of claims 7 to 10, wherein the method comprises the further step of applying a layer of water-proof material on top of the upper channel, the water-proof material extending over the edge of the fastening portions of the lower channel.
GB0810757A 2007-07-19 2008-06-12 Insulated rainwater gutter Withdrawn GB2451164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0713993.4A GB0713993D0 (en) 2007-07-19 2007-07-19 Improvements in or relating to guttering

Publications (2)

Publication Number Publication Date
GB0810757D0 GB0810757D0 (en) 2008-07-23
GB2451164A true GB2451164A (en) 2009-01-21

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GBGB0713993.4A Ceased GB0713993D0 (en) 2007-07-19 2007-07-19 Improvements in or relating to guttering
GB0810757A Withdrawn GB2451164A (en) 2007-07-19 2008-06-12 Insulated rainwater gutter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0713993.4A Ceased GB0713993D0 (en) 2007-07-19 2007-07-19 Improvements in or relating to guttering

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457798A (en) * 2008-02-28 2009-09-02 Kingspan Res & Dev Ltd Insulated gutter panel with waterproof coating

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081336A (en) * 1980-08-08 1982-02-17 Williams William & Sons Glassg Insulated roof guttering and expansion joint
GB2101171A (en) * 1981-06-30 1983-01-12 Preformed Components Ltd Gutter section
GB2238805A (en) * 1989-12-06 1991-06-12 Steelpress Ltd Insulated roof gutter
GB2375553A (en) * 2001-04-18 2002-11-20 Jayeff Products Ltd Insulated gutter system
GB2389862A (en) * 2002-06-19 2003-12-24 C A Group Ltd Low thermal conduction gutter element
GB2393458A (en) * 2002-09-04 2004-03-31 Cgl Cometec Ltd Gutter with thermal break

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2081336A (en) * 1980-08-08 1982-02-17 Williams William & Sons Glassg Insulated roof guttering and expansion joint
GB2101171A (en) * 1981-06-30 1983-01-12 Preformed Components Ltd Gutter section
GB2238805A (en) * 1989-12-06 1991-06-12 Steelpress Ltd Insulated roof gutter
GB2375553A (en) * 2001-04-18 2002-11-20 Jayeff Products Ltd Insulated gutter system
GB2389862A (en) * 2002-06-19 2003-12-24 C A Group Ltd Low thermal conduction gutter element
GB2393458A (en) * 2002-09-04 2004-03-31 Cgl Cometec Ltd Gutter with thermal break

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457798A (en) * 2008-02-28 2009-09-02 Kingspan Res & Dev Ltd Insulated gutter panel with waterproof coating
GB2457798B (en) * 2008-02-28 2012-06-06 Kingspan Res & Dev Ltd An insulated gutter

Also Published As

Publication number Publication date
GB0713993D0 (en) 2007-08-29
GB0810757D0 (en) 2008-07-23

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