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EP4293169A1 - Verfahren zur nachträglichen isolierung einer wand - Google Patents

Verfahren zur nachträglichen isolierung einer wand Download PDF

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Publication number
EP4293169A1
EP4293169A1 EP23179767.1A EP23179767A EP4293169A1 EP 4293169 A1 EP4293169 A1 EP 4293169A1 EP 23179767 A EP23179767 A EP 23179767A EP 4293169 A1 EP4293169 A1 EP 4293169A1
Authority
EP
European Patent Office
Prior art keywords
wall
insulation
plates
vapour
spacers
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.)
Pending
Application number
EP23179767.1A
Other languages
English (en)
French (fr)
Inventor
Ole Gunnar Selvaag
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.)
OGS Seed AS
Original Assignee
OGS Seed AS
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 OGS Seed AS filed Critical OGS Seed AS
Publication of EP4293169A1 publication Critical patent/EP4293169A1/de
Pending 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
    • E04B1/762—Exterior insulation of exterior walls
    • 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
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
    • E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer

Definitions

  • the present invention relates to a method of post-insulation of exterior walls in commonly occurring houses.
  • Vapour can enter a wall when the vapour pressure (the partial pressure) of the air inside seeks to find its way out towards the cold side of the wall. This can be done by diffusion through inner cover and foils, and through cracks and tears in the inner surface. This moisture must then be released into the open so as not to damage the wall.
  • the vapour pressure the partial pressure
  • the present invention concerns the rehabilitation of existing wooden walls, post-insulation of walls and protection against moisture damage.
  • the invention is further defined in the subsequent patent claims.
  • Diffusion-open cardboard may be mounted over the exposed insulation in the existing wall so that it is not wetted by precipitation during the construction process.
  • Spacers are mounted on the existing wall as a basis and adjustment for a support of the new post-insulation to be mounted. These spacers function to give the wall the largest possible volume of mineral wool, so that the transport of water vapour is as efficient and unhindered as possible, and that the thermal insulation is as good as possible.
  • the volume between the supporting elements is filled with vapour-open mineral wool.
  • the mineral wool is protected from precipitation and moisture with diffusion-open cardboard.
  • Plates with high-insulating foamed plastic are attached to the support with washers and screws.
  • the wall is given a cladding or a layer of plaster and fiberglass cloth. Together, this gives the wall a robust surface.
  • the invention provides the wall with defined pathways and means for the evacuation of water vapour that may enter into the wall, during and after rehabilitation.
  • the invention may include four paths, two paths in a horizontal direction and two vertically.
  • the support which may be of wood, is arranged a distance from the existing wall. Pieces of wood serve to adjust and straighten the support, and to provide said distance.
  • the window In order to release vapour at the top and bottom edge of a window, the window may be placed in a retracted position from the external insulation plate, for example 20 mm. In this way, the water vapour may be given a free path from the vapour equalisation layer between the plate and the existing wall and out to open air.
  • the same openings may be arranged at the foundation wall and roof.
  • the insulating ability of the outer plate ensures that condensation of water vapour does not occur against the plate even on cold days. This is achieved in that the insulation properties of the wall, the vapour-open insulation and the plate are adapted to each other so that the temperature on the inside of the plate becomes relatively high throughout most of the year.
  • the existing wall has a well-functioning diffusion-preventing foil, cardboard or plate under the interior panel. If the diffusion barrier is missing, it can be mounted on the outside of the existing wall. The insulation in the existing wall must then be reduced or removed. Thus, the temperature is kept high in the existing wooden wall, while at the same time the relative humidity is kept low, and rotting is avoided.
  • the drawing shows a vertical section through a wall provided with an additional insulation following a method according to the invention.
  • the figure shows an existing wall 1, such as a timber framing, which on the inside has a gypsum board 2 and a vapour barrier 3. Inside the vapour barrier, the original insulation 4 is located, for example 10 cm mineral wool. Any existing panelling and windbreaker have been removed.
  • Spacers 5 are attached to the framework of the wall (not shown), here in the vertical direction in the form of elongated wooden blocks screwed into the framework.
  • the thickness of the blocks is individually adjusted so that their outer surface 6 remains in the same vertical plane, in order to even out any irregularities in the surface of the existing wall.
  • Horizontal supporting elements 7 are attached to the blocks, here in the form of rails of wooden material.
  • Vapour-open insulation material 8, such as mineral wool, is placed in the spaces between the supporting elements 7 and the insulation 4, and a windbreaker 9 or similar is placed on top of the insulation material 7, in order to, inter alia, keep the insulation in place and protect it from the elements during further work on the invention.
  • plates 10 of highly insulating material such as PIR
  • the plates have or will receive a 9 mm gypsum board 12 on the outside and are restrained by laths 13, which are attached to the supporting elements 7 using screws 14.
  • the laths form aeration and attachment for an exterior cladding panel 15.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Building Environments (AREA)
EP23179767.1A 2022-06-17 2023-06-16 Verfahren zur nachträglichen isolierung einer wand Pending EP4293169A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20220700A NO20220700A1 (no) 2022-06-17 2022-06-17 Fremgangsmåte for etterisolering av eksisterende vegg

Publications (1)

Publication Number Publication Date
EP4293169A1 true EP4293169A1 (de) 2023-12-20

Family

ID=87567711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23179767.1A Pending EP4293169A1 (de) 2022-06-17 2023-06-16 Verfahren zur nachträglichen isolierung einer wand

Country Status (2)

Country Link
EP (1) EP4293169A1 (de)
NO (1) NO20220700A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120279156A1 (en) * 2010-01-18 2012-11-08 Rockwool International A/S Façade Insulation
US20150096251A1 (en) * 2011-12-21 2015-04-09 James Hardie Technology Limited Facade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10322433A1 (de) * 2002-08-17 2004-02-26 Walter Gutjahr Verfahren zur Sanierung oder vorsorglichem Schützen von durchfeuchteten äußeren Wärmedämm-Verbundsystemen oder in anderer Weise beschädigten Gebäude-Außenwänden, sowie Bahn- oder Plattenmaterial zur Durchführung des Verfahrens
NO321257B1 (no) * 2003-01-10 2006-04-10 Selvaag Spinoff As Drenerende isolasjon
WO2022075857A1 (en) * 2020-10-08 2022-04-14 Selvaag Gruppen As A prefabricated external wall element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120279156A1 (en) * 2010-01-18 2012-11-08 Rockwool International A/S Façade Insulation
US20150096251A1 (en) * 2011-12-21 2015-04-09 James Hardie Technology Limited Facade

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"''Etterisolering av småhus'' (Post-insulation of small houses)", 2017, SINTEF ACADEMIC PRESS

Also Published As

Publication number Publication date
NO20220700A1 (no) 2023-12-18

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