US20040031212A1 - Insulation of slanting roof structures - Google Patents

Insulation of slanting roof structures Download PDF

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Publication number
US20040031212A1
US20040031212A1 US10/416,426 US41642603A US2004031212A1 US 20040031212 A1 US20040031212 A1 US 20040031212A1 US 41642603 A US41642603 A US 41642603A US 2004031212 A1 US2004031212 A1 US 2004031212A1
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United States
Prior art keywords
insulation
laths
heat stability
layer
roofing
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Abandoned
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US10/416,426
Inventor
Marjan Sircelj
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Individual
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Individual
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Publication of US20040031212A1 publication Critical patent/US20040031212A1/en
Abandoned legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/16Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1612Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
    • E04D13/1618Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for fixing the insulating material between the roof covering and the upper surface of the roof purlins or rafters

Definitions

  • the invention refers to such type of insulation for slanting roof structures that provides for optimum heat stability and for simultaneous carrying support.
  • the invention has been classified into class E 04B 1/74 of the International Patent Classification.
  • the technical problem successfully solved by the invention in question involves the design and the construction of such roofing for slanting roof structures that will provide for high heat insulation at heating of the attic, for a high suppression factor of the temperature variation amplitude, i.e. for high heat stability along with simultaneous carrying support for the basic roofing, as well as interruption of line heat bridges caused by the wooden roof truss.
  • the attic often has to be utilized as a residence.
  • the most emphasis is laid on the roof structure that primarily consists of four typical elements: roofing, heat insulation, vapour barrier layers and ceiling claddings.
  • the insulation providing for the optimum heat stability and for simultaneous adequate carrier support referred to in this invention consists of a layer of rock wool whereof the density is 160-170 kg/M 3 and the crush strength 60-80 kN/m 2 . It is simultaneously used for achievement of the heat stability of the roof structure and as a carrier support of the sub-structure for the roofing and the protective roofing.
  • FIG. 1 shows the longitudinal section of the roof truss, including the application of the rock wool as an element providing for heat stability and representing the carrier support of the sub-structure for the roofing;
  • FIG. 2 shows the cross-section of the roof truss, including the application of the rock wool as an element providing for heat stability and representing the carrier support of the sub-structure for the roofing.
  • FIGS. 1 and 2 show the longitudinal section and the cross-section of the roof truss, including the application of the rock wool of specific density and crush strength, designed for insulation of a slanting roof structure.
  • the slanting roof structure consists of wood laths 1 for supporting the roofing, connected with counter-laths 3 that are fixed to the beams 10 in the way that the laths 1 and the counter-laths 3 are separated by the air layer 2 .
  • the protective roofing 4 fixed with counter-laths 3 , lies on a layer 5 of rock wool with a density of 160 kg/M 3 and a crush strength of 70 kN/m 2 whereby to achieve the heat stability, while the layer 5 simultaneously carries the sub-structure for the roofing.
  • the rock wool layer 6 with a density of 50 kg/m 3 , that provides for additional heat insulation, the vapour barrier 7 , made of a PE foil, as well as a layer of air 8 and wood laths 11 for fixing the vapour barrier and for mounting any ceiling claddings whatsoever.
  • carrier support for the basic roofing and for the so-called protective roofing and

Abstract

The invention refers to such type of insulation for slanting roof structures that provides for optimum heat stability and for simultaneous carrying support of the basic and the protective roofings. The insulation with slanting roof structures providing for optimum heat stability and for simultaneous carrier support consists of a layer of rock wool of a 160-170 kg/m3; density and of 60-80 kN/m2; crush strength, providing simultaneously for adequate heat stability of the roof structure and applied as the carrier support of the basic and the protective roofings.

Description

  • The invention refers to such type of insulation for slanting roof structures that provides for optimum heat stability and for simultaneous carrying support. The invention has been classified into class E 04B 1/74 of the International Patent Classification. [0001]
  • The technical problem successfully solved by the invention in question involves the design and the construction of such roofing for slanting roof structures that will provide for high heat insulation at heating of the attic, for a high suppression factor of the temperature variation amplitude, i.e. for high heat stability along with simultaneous carrying support for the basic roofing, as well as interruption of line heat bridges caused by the wooden roof truss. [0002]
  • At designing, construction and reconstruction of buildings, the attic often has to be utilized as a residence. In terms of construction and physical aspect, the most emphasis is laid on the roof structure that primarily consists of four typical elements: roofing, heat insulation, vapour barrier layers and ceiling claddings. [0003]
  • The achievement of the prescribed or optimum heat insulation does not impose any big problem because almost all heating and insulation materials known hitherto provide for quite balanced heat conductivity R 0,030-0,040 W/(m.K). Depending on the heat insulation gauge, it is possible to provide for heat conductivity of the roof structure up to the value of k=0,20 W/(m[0004] 2.K) in a quite reasonable way. The heat conductivity is an in important physical characteristic, in particular in winter, when reference is made to the highest possible energy saving at heating of the rooms below the roof structure. In summer, the heat conductivity is, of course important, although this characteristic alone cannot secure the so-called heat stability of the structure. With reference to our regulation (JUS U.J5.600/87), the suppression factor of the temperature variation amplitude (v) for a slanting roof structure should be at least v=15, which is definitely too low. It would be correct, if this value equaled that prescribed for flat roofs, i.e. v=25.
  • It has been shown in practice that in the summer time and even in the transitional periods it is much too hot in the attic rooms, in spite of the low “k” value. In addition to the low “k” value it is necessary to provide for the highest possible thermal stability of the structure (high suppression factor of the temperature variation amplitude). A rather high suppression factor, however, may also be achieved with extremely big heat insulation gauges, which is impossible from the point of view of technology and design and mostly also for functional reasons because the wooden structure of slanting roofs most often does not allow for it. [0005]
  • In our practice in the field of design and construction there is a general belief that in summer time heat stability can be provided by aeration (constant air circulation) between the roofing and the heat insulation layer, although it has often been proved in foreign technical literature that this problem cannot be solved through aeration because in practice it is not always possible to achieve an intensive exchange of air (due to insufficient inclinations and/or heights of the roof truss for the required lifting power). Bigger layers of air also require thicker roof structures that are “thicker” already because of larger heat insulation. Besides, more air between the roofing and the heat insulation may often cause problems evident as abnormal moistening of the wooden structure and generation of condensed water in case of quick temperature & humidity changes. The most important thing to achieve adequate heat stability is the volume weight (density) of a specific layer in the roof structure. It is ideal and the most reasonable if this layer constitutes the heat insulation. [0006]
  • The most typical characteristic of heat insulating materials is that they are mostly lightweight and/or very light. Their density varies between 15 and 50 kg/m[0007] 3. Foamed glass and expanded cork, that both attain about 150 kg/m3, make an exception. Rock wool, again, represents a special example, because its density varies from 30 to 200 kg/m3, depending on the density of the fiber layers. Thereby the heat conductivity of this material equals the average value of other heat insulating materials as follows: R=0.040 W/(m.K).
  • As a rule, technical documentations by renowned manufacturers contain solutions that involve advertising of heat insulation products of the biggest possible gauges. We have not yet come across any documentation that would explicitly point out to the negative consequences of the roof structure overheating in summer time and/or to the problem of heat stability of such structure. Such documentations often describe the product that is extremely lightweight as well as very rigid (hard) and as such difficult to incorporate between the elements of wooden structures. Most often great importance is attributed to the aeration between the insulation and the roofing. We can note that attempts are made to advertise every product as equally useful in all possible building structures—accordingly in slanting roofs as well. With slanting roof structures, the insulation providing for the optimum heat stability and for simultaneous adequate carrier support referred to in this invention consists of a layer of rock wool whereof the density is 160-170 kg/M[0008] 3 and the crush strength 60-80 kN/m2. It is simultaneously used for achievement of the heat stability of the roof structure and as a carrier support of the sub-structure for the roofing and the protective roofing.
  • The invention will be explained in detail on the basis of a concrete example and the pictures, whereof: [0009]
  • FIG. 1 shows the longitudinal section of the roof truss, including the application of the rock wool as an element providing for heat stability and representing the carrier support of the sub-structure for the roofing; [0010]
  • FIG. 2 shows the cross-section of the roof truss, including the application of the rock wool as an element providing for heat stability and representing the carrier support of the sub-structure for the roofing.[0011]
  • FIGS. 1 and 2 show the longitudinal section and the cross-section of the roof truss, including the application of the rock wool of specific density and crush strength, designed for insulation of a slanting roof structure. With reference to the picture (viewed from the side of the roofing), the slanting roof structure consists of wood laths [0012] 1 for supporting the roofing, connected with counter-laths 3 that are fixed to the beams 10 in the way that the laths 1 and the counter-laths 3 are separated by the air layer 2. The protective roofing 4, fixed with counter-laths 3, lies on a layer 5 of rock wool with a density of 160 kg/M3 and a crush strength of 70 kN/m2 whereby to achieve the heat stability, while the layer 5 simultaneously carries the sub-structure for the roofing. Below the layer 5, there is the rock wool layer 6 with a density of 50 kg/m3, that provides for additional heat insulation, the vapour barrier 7, made of a PE foil, as well as a layer of air 8 and wood laths 11 for fixing the vapour barrier and for mounting any ceiling claddings whatsoever.
  • With the above mounting and arrangement of insulating materials and above all with the use of the layer [0013] 5 of the rock wool of high density (160-170 kg/m3) and of high crush strength (60-80 kN/m2), applied simultaneously as a carrier element and as a heat stable insulating material we manage to successfully solve the imposed technical problem and to enable above all:
  • high thermal insulation at heating of the room (winter period); [0014]
  • high suppression factor of the temperature variation amplitude high heat stability; [0015]
  • carrier support for the basic roofing and for the so-called protective roofing, and [0016]
  • interruption of line heat bridges caused by wooden beams, provided that the beams may be visible in part or as a whole. [0017]

Claims (2)

1. The insulation for slanting roof structures that provides for optimum heat stability and for simultaneous carrying support,
characterized In that
it consists of layers of rock wool of high density (160-170 kg/m3) and of high crush strength (60-80 kN/m2), providing simultaneously for adequate heat stability of the roof structure and applied as the carrier support of the basic and the protective roofings.
2. The insulation for slanting roof structures that provides for optimum heat stability and for simultaneous carrying support,
characterized in that
wood laths (1) for supporting the roofing are connected with counter-laths (3) that are fixed to the beams (10) in the way that the laths (1) and the counter-laths (3) are separated by the air layer (2); the protective roofing (4), fixed with counter-laths (3), lies on the layer (5) of rock wool of high density and high crush strength whereunder there is a layer of rock wool (6) of lower density, a vapour barrier (7), made of a PE foil, as well as a layer of air (8) and wood laths (11).
US10/416,426 2000-11-08 2001-05-31 Insulation of slanting roof structures Abandoned US20040031212A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SIP-200000267 2000-11-08
SI200000267A SI20758A (en) 2000-11-08 2000-11-08 Isolation and supporting surface of slant roof assemblies for providing optimum thermal stability
PCT/SI2001/000017 WO2002038886A1 (en) 2000-11-08 2001-05-31 Insulation of slanting roof structures

Publications (1)

Publication Number Publication Date
US20040031212A1 true US20040031212A1 (en) 2004-02-19

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Family Applications (1)

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US10/416,426 Abandoned US20040031212A1 (en) 2000-11-08 2001-05-31 Insulation of slanting roof structures

Country Status (6)

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US (1) US20040031212A1 (en)
EP (1) EP1332263A1 (en)
AU (1) AU2001264532A1 (en)
HR (1) HRP20030350A2 (en)
SI (1) SI20758A (en)
WO (1) WO2002038886A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2941622T3 (en) * 2013-06-07 2023-05-24 Rockwool As An insulating roof support assembly, a method of installing such a roof support assembly, and an insulating roof construction

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US1754411A (en) * 1927-11-10 1930-04-15 United States Gypsum Co Sound-insulating construction
US2028253A (en) * 1930-09-15 1936-01-21 Wood Conversion Co Insulation pad and construction
US3027187A (en) * 1959-02-09 1962-03-27 William C Rivers Van body roof and wall construction
US3804196A (en) * 1971-02-01 1974-04-16 Schoeller & Co Kg Noise absorbing element in block form
US4058949A (en) * 1976-08-24 1977-11-22 Butler Manufacturing Company Building roof insulation
US4201247A (en) * 1977-06-29 1980-05-06 Owens-Corning Fiberglas Corporation Fibrous product and method and apparatus for producing same
US4274239A (en) * 1976-09-03 1981-06-23 Carroll Research, Inc. Building structure
US4292777A (en) * 1978-10-10 1981-10-06 Story Edward R Insulation-confining panel and method of using the same
US4323620A (en) * 1978-06-30 1982-04-06 Yuasa Battery Company Limited Multilayer heat insulator
US4428791A (en) * 1979-11-13 1984-01-31 Fritz Reinke Engineering Process and apparatus for producing composite building panels, and panels produced thereby
US4434601A (en) * 1980-02-26 1984-03-06 Hans Zellmer Heat insulated roof structure
US4525967A (en) * 1979-11-13 1985-07-02 Encon Products, Inc. Support spacer apparatus for a built-up roof
US4528789A (en) * 1979-11-13 1985-07-16 Encon Products, Inc. Insulated roof system
US4567095A (en) * 1984-09-04 1986-01-28 W. R. Grace & Co. Asphalt foam
US4573298A (en) * 1981-03-23 1986-03-04 Thermal Design, Inc. Building insulation system
US4651489A (en) * 1983-10-24 1987-03-24 Amca International Insulated roofing structure
US4696847A (en) * 1982-10-29 1987-09-29 Isover Saint-Gobain Insulating and impervious roofing panels
US4700521A (en) * 1986-04-28 1987-10-20 Cover Craig H Multilayered insulation batt for building structures
US4736552A (en) * 1984-10-03 1988-04-12 Ward Lonnie R Roof insulation system and method of fabrication therefor
US4800691A (en) * 1985-05-07 1989-01-31 Theault & Cie Self-supporting element for the construction of a building roof, comprising a metal framework associated with a single-unit insulating cladding, metal framework and insulating cladding constituting said element, and the resulting roof
US4972644A (en) * 1988-09-16 1990-11-27 Manville Corporation Metal building insulation
US5458960A (en) * 1993-02-09 1995-10-17 Roctex Oy Ab Flexible base web for a construction covering
US5582905A (en) * 1994-05-26 1996-12-10 Beck; Martin H. Polyester insulation
US5794386A (en) * 1995-03-07 1998-08-18 Suba Cooperation Gesellschaft Fur Bauforschung Und Franchising Mbh Roof panel for sloped roofs
US5868891A (en) * 1996-10-31 1999-02-09 Owens Corning Fiberglas Technology, Inc. Peel and stick insulation having a common carrier sheet
US6401414B1 (en) * 1998-01-08 2002-06-11 Acell Holdings Limited Weather resistant panels
US20020086790A1 (en) * 1995-11-08 2002-07-04 Rockwool International A/S Man-made vitreous fibres
US6929839B2 (en) * 1998-10-07 2005-08-16 Johns Manville International, Inc. Pre-cut fibrous insulation for custom fitting wall cavities of different widths

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GB1269435A (en) * 1969-04-18 1972-04-06 Johns Manville Thermal insulation suspension and vapor sealing system
DE4309649A1 (en) * 1993-01-08 1994-07-14 Kempf & Seifried Bauelemente U Sloping tiled roof for building
WO2009069160A1 (en) * 2007-11-28 2009-06-04 Donato Diomede Smart road safety control device

Patent Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1754411A (en) * 1927-11-10 1930-04-15 United States Gypsum Co Sound-insulating construction
US2028253A (en) * 1930-09-15 1936-01-21 Wood Conversion Co Insulation pad and construction
US3027187A (en) * 1959-02-09 1962-03-27 William C Rivers Van body roof and wall construction
US3804196A (en) * 1971-02-01 1974-04-16 Schoeller & Co Kg Noise absorbing element in block form
US4058949A (en) * 1976-08-24 1977-11-22 Butler Manufacturing Company Building roof insulation
US4274239A (en) * 1976-09-03 1981-06-23 Carroll Research, Inc. Building structure
US4201247A (en) * 1977-06-29 1980-05-06 Owens-Corning Fiberglas Corporation Fibrous product and method and apparatus for producing same
US4323620A (en) * 1978-06-30 1982-04-06 Yuasa Battery Company Limited Multilayer heat insulator
US4292777A (en) * 1978-10-10 1981-10-06 Story Edward R Insulation-confining panel and method of using the same
US4428791A (en) * 1979-11-13 1984-01-31 Fritz Reinke Engineering Process and apparatus for producing composite building panels, and panels produced thereby
US4525967A (en) * 1979-11-13 1985-07-02 Encon Products, Inc. Support spacer apparatus for a built-up roof
US4528789A (en) * 1979-11-13 1985-07-16 Encon Products, Inc. Insulated roof system
US4434601A (en) * 1980-02-26 1984-03-06 Hans Zellmer Heat insulated roof structure
US4573298A (en) * 1981-03-23 1986-03-04 Thermal Design, Inc. Building insulation system
US4696847A (en) * 1982-10-29 1987-09-29 Isover Saint-Gobain Insulating and impervious roofing panels
US4651489A (en) * 1983-10-24 1987-03-24 Amca International Insulated roofing structure
US4567095A (en) * 1984-09-04 1986-01-28 W. R. Grace & Co. Asphalt foam
US4736552A (en) * 1984-10-03 1988-04-12 Ward Lonnie R Roof insulation system and method of fabrication therefor
US4800691A (en) * 1985-05-07 1989-01-31 Theault & Cie Self-supporting element for the construction of a building roof, comprising a metal framework associated with a single-unit insulating cladding, metal framework and insulating cladding constituting said element, and the resulting roof
US4700521A (en) * 1986-04-28 1987-10-20 Cover Craig H Multilayered insulation batt for building structures
US4972644A (en) * 1988-09-16 1990-11-27 Manville Corporation Metal building insulation
US5458960A (en) * 1993-02-09 1995-10-17 Roctex Oy Ab Flexible base web for a construction covering
US5582905A (en) * 1994-05-26 1996-12-10 Beck; Martin H. Polyester insulation
US5794386A (en) * 1995-03-07 1998-08-18 Suba Cooperation Gesellschaft Fur Bauforschung Und Franchising Mbh Roof panel for sloped roofs
US20020086790A1 (en) * 1995-11-08 2002-07-04 Rockwool International A/S Man-made vitreous fibres
US5868891A (en) * 1996-10-31 1999-02-09 Owens Corning Fiberglas Technology, Inc. Peel and stick insulation having a common carrier sheet
US6401414B1 (en) * 1998-01-08 2002-06-11 Acell Holdings Limited Weather resistant panels
US6929839B2 (en) * 1998-10-07 2005-08-16 Johns Manville International, Inc. Pre-cut fibrous insulation for custom fitting wall cavities of different widths

Also Published As

Publication number Publication date
HRP20030350A2 (en) 2005-04-30
SI20758A (en) 2002-06-30
EP1332263A1 (en) 2003-08-06
WO2002038886A1 (en) 2002-05-16
AU2001264532A1 (en) 2002-05-21

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