GB2430208A - Thermally insulated wall construction - Google Patents

Thermally insulated wall construction Download PDF

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Publication number
GB2430208A
GB2430208A GB0519055A GB0519055A GB2430208A GB 2430208 A GB2430208 A GB 2430208A GB 0519055 A GB0519055 A GB 0519055A GB 0519055 A GB0519055 A GB 0519055A GB 2430208 A GB2430208 A GB 2430208A
Authority
GB
United Kingdom
Prior art keywords
wall
insulating
layer
studs
wall surface
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Withdrawn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
GB0519055A
Other versions
GB0519055D0 (en
Inventor
Iain Mcgregor Fairnington
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.)
A Proctor Group Ltd
Original Assignee
A Proctor Group 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 A Proctor Group Ltd filed Critical A Proctor Group Ltd
Priority to GB0519055A priority Critical patent/GB2430208A/en
Publication of GB0519055D0 publication Critical patent/GB0519055D0/en
Publication of GB2430208A publication Critical patent/GB2430208A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
    • E04B1/7612—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels in combination with an air space
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/70—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood
    • E04B2/706—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with supporting function
    • E04B2/707—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with supporting function obturation by means of panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/72—Non-load-bearing walls of elements of relatively thin form with respect to the thickness of the wall
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • E04B2/7409—Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts special measures for sound or thermal insulation, including fire protection
    • E04B2/7412—Posts or frame members specially adapted for reduced sound or heat transmission
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7691—Heat reflecting layers or coatings

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)

Abstract

A thermally insulated wall structure has a framework of spaced studs <B>2</B> supporting, on a first side, an outer wall panel <B>6</B> and, on a second side, an inner wall surface <B>10</B>. A layer of insulating sheathing <B>12</B> extends continually across the framework in the space between the outer wall panel <B>6</B> and the inner wall surface <B>10</B>. The insulating sheathing may be provided between the stud framing <B>2</B> and one of the outer wall panel <B>6</B> and the inner wall surface <B>10</B>, which may be secured to the studs <B>2</B> by fixings which pass through the insulating sheathing. The insulating sheathing may be a multi-foil insulant comprising two outer foil surfaces sandwiching a plurality of layers of non-woven textile materials and insulating foils. The outer foil surfaces may be reinforced with mesh. A method of insulating a building with such a wall structure and a surface panel with a layer of insulating material bonded thereto are also disclosed.

Description

--
IMPROVED THERMAL INSULATION
The present invention relates to an improved method for the thermal insulation of buildings, and to building structures, and to walls, having improved thermal insulation. The present invention is particularly directed to the insulation of timber framed structures, but not exclusively.
There are concerns world-wide about global warming and greenhouse gases and many governments have agreed to reduce CO2 emissions and the energy consumed to heat, or indeed to cool, dwellings and buildings. There is therefore a drive towards improved thermal efficiency in new buildings in the United Kingdom and elsewhere.
The demands on the house builder to increase thermal insulation of buildings conflicts with the desire to avoid detrimental effects on the plot size of a property and potential room sizes within dwellings. One conventional method of increasing thermal insulation is to use a greater thickness of thermal insulation. It will be understood that greater thicknesses of thermal insulation used in a dwelling can result in smaller room sizes. Alternatively developers can increase the footprint area of each building to accommodate extra thicknesses of thermal insulation used in the walls, but that then reduces the number of houses that can be built in any one area. There is therefore a demand for thin, highly efficient thermal insulating structures, rather than using traditional thick, bulky, less efficient thermal insulating materials.
Recently reflective materials utilising low emissivity faces to increase their thermal performance have been developed. It is known to use thin, reflective membranes on their own, including breathable ones, in timber frame building applications, however such arrangements are generally associated with the use of air spaces to provide acceptable thermal insulation properties.
It will be understood that heat is transferred in three distinct ways convection, conduction and thermal radiation. Convection heat transfer is reduced by reducing the air movement through an insulating material.
Conduction is the transmission of heat through contact between solid bodies and most thermal insulating materials available only reduce conduction heat transfer. The last method of heat transfer is thermal radiation and this is generally dependent on the emissivity of surfaces. The greater the reflection of radiation the less thermal transmission there will be. Multi-foiled insulating materials that reduce heat transfer by all three mechanisms are known.
Timber frame housing is increasingly popular due to its prefabricated, quality assured factory production and ease of construction and these frames are increasingly popular with the construction industry. The conventional manner of insulating such timber frame structures is for a thermal insulation layer to be placed between the studs on the wall on site. Alternatively it is possible to install the insulation between the studs in a factory in the form of a closed panel. The disadvantage of installing thermal insulation on site is that it is unreliable, time consuming and costly.
Recently reflective breathable membranes have been used on the exterior of the sheathing of the walls of timber framed structures, which are usually sheathed with OSB or plywood.
Such an arrangement is described in GB2382827A. Such an arrangement reduces the use of mineral fibre insulating material between the studs of such structures.
There are disadvantages with all known thermal insulation techniques and constructions and it is an object of the present invention to avoid or minimise one or more of these disadvantages.
According to the present invention there is provided a wall structure for use in the construction of a building, which wall structure comprises a framework of spaced apart studs supporting, on one side, an outer wall panel, and on its other side, an inner wall surface, and a layer of insulating sheathing which extends continually across said framework between said outer wall panel and said inner wall surface.
Thus by utilising a layer of insulating material which extends continually across the framework, as distinct from being placed between the studs of a framework, significantly improved U-values (thermal insulation) can be realised over conventional structures. Preferably said layer of insulating sheathing extends continually across the framework and is adjacent to said outer wall panel (or cold side) . Alternatively said layer of insulating sheathing extends continually across the framework of studs and is adjacent the inner wall surface (for example plasterboard) Alternatively said layer of insulating sheathing which extends continually across the framework is on the side of the frame which faces the inner wall surface (plasterboard), and said inner wall surface (plasterboard) is mounted on battens which are secured to the studs of * n said framework. Such an arrangement provides for a continuous uninterrupted layer of insulating sheathing with the added advantage that there is a small air gap, corresponding to the thickness of the battens, between the sheathing and the inner wall surface (plasterboard) In another aspect the present invention provides a method of insulating a building having a frame construction comprising a framework of spaced apart studs for supporting, on one side, an outer wall panel, and on its other side an inner wall surface which method comprises the step of introducing a layer of insulating sheathing which extends continually across the framework of studs between said outer wall panel and said inner wall surface.
Preferably said layer of insulating sheathing is in the form of a multifoil insulant comprising two outer foil surfaces, generally reinforced, sandwiching a plurality of layers of non-woven textile materials and insulating foils.
Preferably said layer of insulating sheathing is of the so- called thermal reflective insulation material manufactured by Actis S.A. of Limoux, France.
A wall structure according to the present invention has a number of advantages that are attractive to the timber frame manufacturer - it is easier to manufacture pre- insulated panels in a factory environment; the risk of damage to the insulating material during transportation and construction is eliminated; there is a void between the outer and inner surfaces of the wall which can be used for services such as electrical and/or plumbing. In a conventionally insulated (prior art) wall structure this may be filled with fibreglass insulation which is disturbed when services are fitted. Where the layer of insulating sheathing is adjacent to the outer wall panel the service void is on the warm side of the insulating sheathing (nearer the interior of the building) and allows services such as electrical and/or plumbing to take space up to the full depth of the stud without affecting the thermal efficiency or presenting condensation risks within the stud assembly.
In yet another aspect the present invention provides a wall surface panel (e.g. plasterboard) having a continuous layer of insulating sheathing comprising a multi-foil laminate material bonded to one surface thereof.
Preferably said outer wall panel/OSB is secured and fixed to said studs by nails or other suitable securing means.
Similarly said inner wall surface (e.g. plasterboard) is secured to studs by nails or other securing means. Said securing means passing through said layer of insulating sheathing.
Further preferred features and advantages of the present invention will appear from the following detailed description given by way of example of some preferred embodiments illustrated with reference to accompanying drawings in which: Figure 1 is a perspective view of one embodiment of wall structure according to the invention; Figure 2 is a perspective view of another embodiment of wall structure according to the invention; Figure 3 is a plan view in section through the wall structure shown in Figure 1; Figure 4 is a plan view in section through the wall structure shown in Figure 2; Figure 5 is a plan view, in section of a wall structure of another embodiment; and Figure 6 shows a multi foil insulating material in a partially opened out view.
Figure 1 shows a wall structure generally indicated by reference number 1, which is suitable for use in the construction of a building. The wall structure comprises a framework of vertically extending spaced apart studs 2 supporting, on one side 4, an outer wall panel 6 and, on its other side 8, an inner wall surface of plasterboard 10.
As shown in Figure 1 a continuous layer of multi-foil insulating material 12 extends across the studs 2 and is between the studs 2 and the outer wall panel 6. The outer wall panel 6 and the plasterboard 10 are secured to the studs 2 by nails (not shown) As shown in Figure 2, which is a slightly different embodiment and arrangement, the layer of multi-foil insulating material 12 extends across the side of the stud 2 which faces inwardly and the plasterboard 10 (inner wall) is mounted thereto by a series of spaced apart battens 14.
In this arrangement there is a small air gap 16 between the plasterboard 10 and the layer of insulating multi-foil material 12.
Figure 3 shows a plan view arrangement of the structure shown on Figure 1 and Figure 4 shows, in plan view, the arrangement shown in Figure 2.
Figure 5 shows a further embodiment wherein the layer of plasterboard 10 (inner wall surface) has bonded thereto a layer of multi-foil insulating material 12 which extends continuously across the studs 2 and the plasterboard 10.
The plasterboard 10 is secured to the studs 2 using nails in the conventional manner.
Tests undertaken by the applicant show that the theoretical (design) U-value for a timber frame wall having 150mm glass fibre insulation, typical of house construction in the UK, is 0.270 W/m2K. Current building regulations in Scotland require the U-value of less than 0.3 W/m2K for a timber frame construction and less than 0.35 W/m2K in England. The tests undertaken by the applicant indicate that the arrangement shown in Figure 1 has a U-value of 0.264 W/m2K and the arrangement in Figure 2 U-value of 0.275 W/m2K.
It will therefore be appreciated that the thermal insulation provided by the embodiment shown in Figures 2 and 4 is at least similar to the aforesaid conventional timber frame construction with 150mm glass fibre insulation, but with the added advantage that there is a void between the inner and outer walls for use in services (electrical/plumbing) . The arrangement shown in Figure 1 and Figure 3 has improved the U values over the arrangement shown in Figures 2 and 4.
Figure 6 shows, merely by way of example, the make up of a multi-foil insulating material 12 suitable for use in the invention, which in this embodiment comprises two metallic films with reinforcing mesh 18, two wadding layers 20, four foam layers 22, six internal reflective films 24 and one - 10 - perforated wadding layer 26. This material (Multipro TS25O1M) is manufactured and supplied by Actis S.A. of France.

Claims (13)

- ii - CLAIMS
1. A wall structure for use in the construction of a building, which wall structure comprises a framework of spaced apart studs supporting, on one side, an outer wall panel, and on its other side, an inner wall surface, and a layer of insulating sheathing which extends continually across said framework between said outer wall panel and said inner wall surface.
2. A wall structure according to claim 1 wherein said layer of insulating sheathing is adjacent to said outer wall panel. * S S...
3. A wall structure according to claim 2 wherein said :::: 15 outer wall panel is secured to said studs by nails or other securing means passing through said layer of insulating : sheathing.
* *.S.
4. A wall structure according to claim 1 wherein said layer of insulating sheathing is adjacent to said inner wall surface.
5. A wall structure according to claim 4 wherein said inner wall surface is secured to said studs by nails or other securing means passing through said layer of insulating sheathing.
- 12 -
6. A wall structure according to claim 1 wherein said layer of insulating sheathing is on the side of the framework of studs which faces the inner wall surface, and said inner wall surface is mounted on battens secured to the studs whereby an air gap is provided between the insulating sheathing and the inner wall surface.
7. A wall structure according to any preceding claim wherein said layer of insulating sheathing is in the form of a multi-foil insulant comprising two outer foil surfaces sandwiching a plurality of layers of non-woven textile . materials and insulating foils. * S.. p *s. * I**
8. A wall structure according to claim 5 wherein said outer foil surfaces are reinforced with reinforcing mesh. I...
9. A wall surface panel having a continuous layer of insulating sheathing comprising a multi-foil laminate insulating material bonded to one surface thereof.
10. A method of insulating a building having a frame construction comprising a framework of spaced apart studs for supporting, on one side, an outer wall panel, and on its other side an inner wall surface which method comprises the step of introducing a layer of insulating sheathing which extends continually across the framework of studs between said outer wall panel and said inner wall surface.
11. A wall structure substantially as hereinbefore described and with reference to Figs. 1 and 3 of the accompanying drawings.
12. A wall structure substantially as hereinbefore described and with reference to Figs. 2 and 4 of the accompanying drawings.
13. A wall structure substantially as hereinbefore described and with reference to Fig. 5 of the accompanying ::::* drawings. I...
S S.. S...
S
S 5...
GB0519055A 2005-09-15 2005-09-15 Thermally insulated wall construction Withdrawn GB2430208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0519055A GB2430208A (en) 2005-09-15 2005-09-15 Thermally insulated wall construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0519055A GB2430208A (en) 2005-09-15 2005-09-15 Thermally insulated wall construction

Publications (2)

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GB0519055D0 GB0519055D0 (en) 2005-10-26
GB2430208A true GB2430208A (en) 2007-03-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013114076A1 (en) * 2012-02-03 2013-08-08 Icopal Limited Building construction panels
CN103556756A (en) * 2013-10-14 2014-02-05 苏州皇家整体住宅系统股份有限公司 Interlayer shear wall assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10331279A (en) * 1997-03-31 1998-12-15 Kurabo Ind Ltd Heat-insulating structure of building
US6279284B1 (en) * 1998-01-12 2001-08-28 Emco Limited Composite vapor barrier panel
US6481172B1 (en) * 2000-01-12 2002-11-19 William H. Porter Structural wall panels
DE202004018467U1 (en) * 2004-11-29 2005-01-27 Rothenberger, Uwe Wall structure comprises an inside lining, a timber frame, an absorber fleece layer, insulating material, wood fiber insulating panels and an outside finishing layer
US20050055973A1 (en) * 2003-06-06 2005-03-17 Hans T. Hagen, Jr. Insulated stud panel and method of making such
JP2005120799A (en) * 2003-10-14 2005-05-12 Nakajima Home Kk Wall thermal insulation structure of wooden building

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10331279A (en) * 1997-03-31 1998-12-15 Kurabo Ind Ltd Heat-insulating structure of building
US6279284B1 (en) * 1998-01-12 2001-08-28 Emco Limited Composite vapor barrier panel
US6481172B1 (en) * 2000-01-12 2002-11-19 William H. Porter Structural wall panels
US20050055973A1 (en) * 2003-06-06 2005-03-17 Hans T. Hagen, Jr. Insulated stud panel and method of making such
JP2005120799A (en) * 2003-10-14 2005-05-12 Nakajima Home Kk Wall thermal insulation structure of wooden building
DE202004018467U1 (en) * 2004-11-29 2005-01-27 Rothenberger, Uwe Wall structure comprises an inside lining, a timber frame, an absorber fleece layer, insulating material, wood fiber insulating panels and an outside finishing layer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013114076A1 (en) * 2012-02-03 2013-08-08 Icopal Limited Building construction panels
CN103556756A (en) * 2013-10-14 2014-02-05 苏州皇家整体住宅系统股份有限公司 Interlayer shear wall assembly

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Publication number Publication date
GB0519055D0 (en) 2005-10-26

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