EP2762794A1 - Dach-Lüfter - Google Patents

Dach-Lüfter Download PDF

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Publication number
EP2762794A1
EP2762794A1 EP20140153588 EP14153588A EP2762794A1 EP 2762794 A1 EP2762794 A1 EP 2762794A1 EP 20140153588 EP20140153588 EP 20140153588 EP 14153588 A EP14153588 A EP 14153588A EP 2762794 A1 EP2762794 A1 EP 2762794A1
Authority
EP
European Patent Office
Prior art keywords
air outlet
roof
duct
air
roofing
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Withdrawn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
EP20140153588
Other languages
English (en)
French (fr)
Inventor
Wac aw Majoch
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.)
Fakro PP Sp zoo
Original Assignee
Fakro PP Sp zoo
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 Fakro PP Sp zoo filed Critical Fakro PP Sp zoo
Publication of EP2762794A1 publication Critical patent/EP2762794A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation

Definitions

  • the present invention relates to an air outlet installed in a sloped roof, beyond the structure of a roof window and independently of the window's location.
  • the air outlet functions as a duct conveying fresh air to rooms in buildings.
  • the necessity to use air outlets occurred as a result of the trend towards a reduction of heat losses in buildings by excessive sealing and blocking of natural air exchange in rooms.
  • air outlets are used in exterior wall windows, or, in the case of attics, integrated with the structure of a roof window.
  • Air outlets installed in the window structure are a natural solution, because of the relative ease of their manufacturing and installation. In this case, making additional air outlet holes in the exterior wall or in the roof is not necessary.
  • This solution requires installation of a set of spacing elements at the whole length of the layer, in order to maintain even arrangement of the roofing layer. It is also necessary that a space exists between the insulation layer and the roofing, what limits the applicability of this solutions only to roofings having such a space.
  • JP 2011032856 A Another solution free of such a limitation is presented in Japanese Patent Application No. JP 2011032856 A . It is a set with the main element in the form of a multiduct profile installed under the edge tile batten close to the eave or ridge, shown in many embodiment variants. The profile is connected with an opening in the roof insulation by one and, and with the space under the roofing element by the second end, after the edge tile batten, mainly towards the roof slope.
  • the characteristic feature of the solution consists in the required installation point, always located close to the edge of the roof plane.
  • the main element of the solution consists of wedge panels installed on the structure of the roof decking. Lateral dimension of the panels encloses several layers of the roofing. Longitudinal dimension of the panels is not limited and may enclose the whole width of the roof plane. Arrangement of the wedge panels results in formation of a stepped form of the subroofing layer, on which the elements of the low-profile roofing are laid.
  • ventilation ducts are formed, connected with the openings in the decking layer from their internal side. The so-formed ventilation ducts connect the attic interior with the exterior, enabling air exchange.
  • the solution is effective, however it requires a significant number of additional elements, i.e. the wedge panels and sheet metal flashing protecting the air intake at the external side, moreover it upsets the even surface of the roofing.
  • the proposed solution according to the invention introduces an air outlet that may also function as an air vent and has none of the aforementioned limitations. It may be installed in any location on the roof plane and has no specific requirements as for the shape and structure of the roofing.
  • the distinguishing feature of the invention consists in an air outlet with construction penetrating the structure of the roof plane.
  • the air outlet has a compact structure with the inlet duct for fresh air is located at the external side of the roofing, while the inlet is located at the internal side of the roofing, i.e. in the attic space.
  • the air outlet may also function as an air vent, depending on its location and the pressure difference between the exterior and the attic.
  • the air outlet is mounted in a pass-through opening in the roof, the opening with the shape and dimensions fitted to the outline of the air outlet.
  • the connection of the air outlet with the roofing is protected from weather conditions by sheet metal flashing, preferably standard roof flashings.
  • An important advantage of the solution consists in its versatility.
  • the air outlet according to the invention may be used with various roofings. Moreover, there are no particular requirements for the sheet metal flashing used.
  • the air outlet has its external outline basically in the shape of a rectangular prism with protective and mounting elements formed at its exterior, and an air supply duct inside. Dimensions of the outline are defined by its length, width and height. The length is basically the longest dimension of the air outlet, preferably parallel to the tile battens. The length of the air outlet is basically limited by the distance to the neighbouring rafters, however if an explicit need be, construction of the roof framework may be changed in a way enabling installation of an air outlet with a length exceeding the said limitation. The length of the air outlet is not connected with dimensions of the roofing elements, being an advantageous consequence of application of roof flashings according to the standards for installation of roof windows.
  • Width and height are lateral dimensions of the outline, with width defining the dimension in direction preferably parallel to the rafter in the structure of the roof framework.
  • the width of the air outlet is not limited, and for typical applications, it preferably fits between two tile battens, allowing for easy installation of the air outlet in the roofing structure, by replacement of a fragment of one layer of the roofing.
  • Height is defined by dimension perpendicular to length and width, while in the position installed in the roof is basically perpendicular to the surface of the roofing.
  • a frame fixed to elements of the roof framework is the basic element of the air outlet.
  • a single or multiple through air supply duct is made, connecting the inlet duct with the space at the internal side of the window.
  • the inlet duct is a niche, defined by an eave and a channel connected with a roof flashing.
  • the height of a complete set of the air outlet depends on the roof decking thickness. Considering the diverse roof decking thickness, as well as the method for finishing its internal layer, the air outlet is equipped with an extension duct, with length being selected individually.
  • the extension duct constitutes a continuation of the air supply duct made in the frame of the air outlet. Number and size of the air supply duct holes should be adjusted to the designed volume of the air stream flowing through the air outlet. Considering the mechanical strength, particularly with long frames of the air outlet, it is more preferable to use an air supply duct with a higher number of smaller openings than with one wide opening along the frame of the air outlet.
  • known solutions applied in windows may be used, e.g. automatic: pressure-controlled, humidity-controlled or other.
  • the simplest and cheapest solution is to use a manually-removable blanking plug, covering the extension duct from the side of the space at the internal side of the window.
  • the extension duct may be unnecessary. In such case, the blanking plug is installed directly at the outlet of the air supply duct.
  • the eave is fixed to the external surface of the frame and when assembled, it is tightly connected with the top flashing, being a fragment of the roof flashing.
  • the bottom edge of the eave protrudes beyond the outline of the frame, covering part of the channel.
  • the distance between the eave and the top edge of the channel determines the size of the clearance of the inlet duct and it should be adjusted to the designed size of the air supply duct. Excessive distance will increase the possibility for water to penetrate the interior in case of heavy rainfall, while too short distance will increase resistance of the air flow.
  • the shape of the sheet metal flashing of the air outlet depends on the type of the roofing and it is known from many solutions of the sheet metal flashing used for roof windows.
  • a favourable solution consists in such a selection of dimensions of the air outlet which enables using standard roof windows flashings manufactured by one or preferably many manufacturers, leading to a significant reduction of costs of the set. It may be achieved by selection of the air outlet length, positioned in parallel to the tile battens, according to standard width of roof windows available in the market.
  • FIG. 1 General view of the air outlet in the roof structure is shown as isometric drawing in Fig. 1 .
  • the air outlet with its sheet metal flashing is shown as isometric drawing in Fig. 2
  • the air outlet without the sheet metal flashing installed on the elements of the roof framework is shown as isometric drawing in Fig. 3 .
  • FIG. 4 A cross-section of the air outlet and adjacent roof elements is shown in Fig. 4 .
  • the air outlet is mounted in a pass-through opening in the roof with tile roofing.
  • a frame 1 fixed to elements of the roof framework is the main element of the air outlet .
  • An exemplary method and place of installation of the air outlet is shown in Fig. 3 .
  • a through air supply duct 11 is made, connecting the niche located at the external side of the roof, defined by an eave 2 and a channel 3, being a part of the sheet metal flashing of the air outlet, with an extension duct 4.
  • the height of a complete set of the air outlet depends on the roof decking thickness.
  • the height of the air outlet is a dimension preferably parallel to the air supply duct 11, and while assembled in the roof, it is the dimension of the air outlet basically perpendicular to the surface of the roof plane.
  • the extension duct 4 is a continuation of the air supply duct 11 and its outlet hole 41 is located at the external side of the roof plane.
  • the length direction of the extension duct is parallel to the height direction of the air outlet.
  • the length of the extension duct 4 may be adjusted individually to the thickness of the roof decking.
  • For adjustment of the volume of the air stream e.g. one of the simplest and cheapest solutions may be used, in the form of a manually-removable blanking plug 5, covering the extension duct 4 from the side of the space at the internal side of the window.
  • the extension duct 4 is unnecessary. In such case, the blanking plug is installed directly at the outlet of the air supply duct 11.
  • the air outlet has its external outline basically in the shape of a rectangular prism. Dimensions of the outline are defined by its length, width and height. The length is basically the longest dimension of the air outlet, preferably parallel to the tile battens. The length of the air outlet in the proposed embodiment is limited by the distance to the neighbouring rafters and is preferably equal to one of the standard widths of roof windows. Such selection of dimensions allows using the sheet metal flashing in the form of a standard roof flashing 6 used for sealing of connections of a roof window with roof decking.
  • the width of the air outlet frame 1 fits preferably between the two adjacent tile battens 7, allowing for its easy installation into the structure of a layered roofing, by replacement of a fragment of one layer of the roofing.
  • an installation batten 8 fixed to the rafters and laid in parallel with the tile battens 7 should be used, preferably made of the same sections as the tile battens 7.
  • the empty spaces between the tile battens may be filled with insulation material in order to improve thermal performance of the connection.
  • the so-connected elements mentioned above form a carrying part of the pass-through opening in the roof.
  • the other fragment of the pass-through opening penetrates basically the external layers 9 of the decking.
  • the eave 2 is fixed to the external surface of the frame 1 and when assembled, it is tightly connected with the top flashing 61, being an element of the roof flashing 6.
  • the bottom edge 21 of the eave 2 protrudes beyond the outline of the frame 1, covering part of the channel 3.
  • the distance between the eave 2 and the top edge 31 of the channel 3 determines the size of the clearance of the inlet duct 10 and it should be adjusted to the designed volume of the air supply duct 11.
  • the bottom edge 32 of the channel 3 is tight, preferably as a lap joint, connected with the bottom flashing 62, which is an element of the roof flashing 6.
  • the shape of the roof flashing 6 and the elements included in it, among others the top flashing 61 and the bottom flashing 62, is adjusted to the type of the roofing.
  • a economically favourable solution consist in such a selection of dimensions of the air outlet that enables using standard roof windows flashings manufactured by one or preferably many manufacturers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Building Environments (AREA)
EP20140153588 2013-02-04 2014-02-03 Dach-Lüfter Withdrawn EP2762794A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL402646A PL229394B1 (pl) 2013-02-04 2013-02-04 Nawiewnik przenikający przez dach

Publications (1)

Publication Number Publication Date
EP2762794A1 true EP2762794A1 (de) 2014-08-06

Family

ID=50033370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20140153588 Withdrawn EP2762794A1 (de) 2013-02-04 2014-02-03 Dach-Lüfter

Country Status (2)

Country Link
EP (1) EP2762794A1 (de)
PL (1) PL229394B1 (de)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08302919A (ja) 1995-05-02 1996-11-19 Kubota Corp 換気機能付き断熱パネル
JPH1171872A (ja) * 1997-08-29 1999-03-16 Kubota Corp 屋根の換気装置
AU712432B2 (en) * 1992-06-25 1999-11-04 Regent Sheet Metal Pty Ltd Improved roof aperture flashing assembly
EP1088948A2 (de) * 1999-10-01 2001-04-04 Per Poulsen Dachelement
CA2326371A1 (en) * 2000-11-20 2002-05-20 Juergen Koessler Roof vent
DE10155726A1 (de) * 2001-01-12 2002-08-29 Fleck Oskar Entlüftungsvorrichtung mit Rohrdurchführung
WO2008011316A1 (en) * 2006-07-17 2008-01-24 Daniels William B Roof ventilation system
US20090113823A1 (en) * 2007-11-05 2009-05-07 Osborne Daniel E Off-ridge roof vent
US20110030293A1 (en) 2009-08-10 2011-02-10 John Anthony Trischan Tile roof ventilator
JP2011032856A (ja) 2009-07-06 2011-02-17 Ever Kk 換気機能付き屋根

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU712432B2 (en) * 1992-06-25 1999-11-04 Regent Sheet Metal Pty Ltd Improved roof aperture flashing assembly
JPH08302919A (ja) 1995-05-02 1996-11-19 Kubota Corp 換気機能付き断熱パネル
JPH1171872A (ja) * 1997-08-29 1999-03-16 Kubota Corp 屋根の換気装置
EP1088948A2 (de) * 1999-10-01 2001-04-04 Per Poulsen Dachelement
CA2326371A1 (en) * 2000-11-20 2002-05-20 Juergen Koessler Roof vent
DE10155726A1 (de) * 2001-01-12 2002-08-29 Fleck Oskar Entlüftungsvorrichtung mit Rohrdurchführung
WO2008011316A1 (en) * 2006-07-17 2008-01-24 Daniels William B Roof ventilation system
US20090113823A1 (en) * 2007-11-05 2009-05-07 Osborne Daniel E Off-ridge roof vent
JP2011032856A (ja) 2009-07-06 2011-02-17 Ever Kk 換気機能付き屋根
US20110030293A1 (en) 2009-08-10 2011-02-10 John Anthony Trischan Tile roof ventilator

Also Published As

Publication number Publication date
PL229394B1 (pl) 2018-07-31
PL402646A1 (pl) 2014-08-18

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