EP2806079A2 - Gekühlte Dachkonstruktion - Google Patents

Gekühlte Dachkonstruktion Download PDF

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Publication number
EP2806079A2
EP2806079A2 EP14169286.3A EP14169286A EP2806079A2 EP 2806079 A2 EP2806079 A2 EP 2806079A2 EP 14169286 A EP14169286 A EP 14169286A EP 2806079 A2 EP2806079 A2 EP 2806079A2
Authority
EP
European Patent Office
Prior art keywords
space
roof
tiles
cooling
membrane
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Withdrawn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
EP14169286.3A
Other languages
English (en)
French (fr)
Other versions
EP2806079A3 (de
Inventor
Ole Frederiksen
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.)
Excellent Holding ApS
Original Assignee
Excellent Holding ApS
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 Excellent Holding ApS filed Critical Excellent Holding ApS
Publication of EP2806079A2 publication Critical patent/EP2806079A2/de
Publication of EP2806079A3 publication Critical patent/EP2806079A3/de
Withdrawn legal-status Critical Current

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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
    • E04D13/17—Ventilation of roof coverings not otherwise provided for
    • E04D13/172—Roof insulating material with provisions for or being arranged for permitting ventilation of the roof covering
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
    • E04D1/30—Special roof-covering elements, e.g. ridge tiles, gutter tiles, gable tiles, ventilation tiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • E04D11/005—Supports for elevated load-supporting roof coverings
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0075—Systems using thermal walls, e.g. double window
    • F24F2005/0082—Facades

Definitions

  • the present invention relates to a cooling roof construction as well as a method of cooling buildings utilizing such a roof construction.
  • the object is to maintain an interior climate which is neither too cold nor too hot and as such during winter periods it is necessary to heat the houses and during summer periods it is desirable to cool the houses.
  • the costs of cooling houses exceed by far the costs of heating houses.
  • the present invention provides a low cost solution, especially for cooling of houses.
  • the invention is especially used for buildings having a flat or substantially flat roof.
  • the invention is based on the principle that the sun will heat the flat roof surfaces whereby the solar heating will penetrate the roof construction and into the building thereby increasing the interior temperature.
  • the invention provides a cooling roof construction comprising a substantially horizontal roof having a weatherproof membrane, and where a perforated tile layer is arranged a distance above said membrane, where the space between the membrane and the perforated tile layer is connected by at least one conduit to an outside ambient space outside the roof's perimeter or above the tile layer.
  • the conduit By directing the conduit to be connected to an ambient space, for example the free air on the side of the building, the space between the roofing membrane and the tiles is provided with fresh air, and not recirculation of the air "trapped" in the space between the roofing membrane and the tiles. In this manner, better ventilation and thereby cooling is achieved.
  • an ambient space for example the free air on the side of the building
  • the perforated tile layer is assembled from a plurality of tiles, where the tiles are elevated relative to the membrane by means of risers.
  • the elevated tile layer is relatively easy to install in that it is possible to select tiles which have a size which may easily be carried and manually handled on the roof surface.
  • Examples of such tiles are disclosed in US 5509244 but it should be understood that naturally the invention is not limited to the use of this type of tiles, but tests clearly indicate that these tiles are very useful for obtaining the cooling properties of the present invention.
  • One further advantage of using tiles as suggested in US 5509244 is the size of the per-forations.
  • Naturally other tiles having substantially corresponding perforation sizes may also be used.
  • the perforations has a size such that when snow falls on the tiles, the snow will accumulate on the top side of the tiles, leaving the space between the roof structure and the tiles free from snow. This space will contain an amount of non-moving air, which effectively will act as extra insulation. Consequently, during hot periods, cool air will be provided helping to cool the building whereas during cold periods with snow fall, the snow will help insulate the building. Both situations will decrease the energy needed to respectively cool or heat the building.
  • risers as suggested in EP1192323 may also be used with good results.
  • the advantages of using the risers in the European patent provides the elevated layer with large versatility in that different tile sizes may be used and the tile layer may be arranged horizontally regardless of the slant of the underlying roof structure, naturally within limits, simply by using more or less risers. In this manner it is possible to convert a relatively useless slanting/flat roof into a useful outdoor space.
  • the risers have different height, such that the tile layer is a slanted or horizontal surface.
  • cooler air By connecting the other end of the conduit to a place with cooler air for example at a lower elevation or a cooler space such as for example an area which will be in shadow or a cellar space, ground well or the like, cooler air will be sucked into the space between the perforated tile layer and the roof construction and as such will further improve the lowering of the temperature on the roof and thereby the influx of heat into the interior of the building which will again lower the cost of cooling the interior of the building.
  • a cooler space such as for example an area which will be in shadow or a cellar space, ground well or the like
  • the tiles and/or risers made from plastics, preferably in an injection moulding process.
  • plastic moulded elements which are constructed such that they will be able to provide the necessary load carrying characteristics in order to provide a useful surface.
  • This is not necessary in all instances and as such also weaker tile elements and smaller risers may be used in order to provide the same advantages as already described above.
  • the injection moulding process is a relatively cheap manufacturing process and as such together with the relatively low cost of installing such a roof an over-all cheap but very effective cooling installation may be achieved.
  • temperature controlled valve means are provided near the outlet of the conduit.
  • the means for controlling the valves may be but not limited to metal springs which are made from materials having specific temperature expansion/contraction properties, such as the valves are set to remain closed and only open when the temperature in the volume between the roof and the tiles rises above 20 degrees centigrade.
  • the valves themselves may be simple dampers, plates or the like which may be brought from a position obstructing the conduit to a position where the air may flow freely through the conduit, and any position in between.
  • the present invention is also directed to a method of cooling a building using a cooling roof construction as already described above. Naturally the advantages already discussed above will also be achieved with the method.
  • figure 1 is illustrated a schematic cross-section through a roof structure of a building.
  • the building 1 in this embodiment has a substantially flat roof structure 2.
  • the roof structure is provided with the normal membranes etc. in order to render it watertight. These features are not illustrated as they are not important for the invention.
  • the roof structure 2 is arranged a number of perforated tiles 3 which tiles 3 are elevated relative to the roof structure by means of risers 4.
  • the risers 4 are illustrated as comprising a number of superposed elements, but they may also be constructed simply by single element risers.
  • a conduit 5 is arranged in connection with the space 6 created between the plurality of tiles 3 and the roof construction 2. The risers will only support corners of the tiles such that a substantially free space 6 is created between the roof structure 2 and the tiles 3.
  • valve 11 is activated by a temperature sensitive mechanism, which will not be further elaborated. Any suitable operation mechanism, mechanical or electrical may naturally be employed.
  • the valve mechanism 11 may for example be programmed to be shut until the temperature in the space 6 rises above 20 degrees, after which the valve 11 opens and allows cool air to be sucked into the space through the conduit 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
EP14169286.3A 2013-05-22 2014-05-21 Gekühlte Dachkonstruktion Withdrawn EP2806079A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA201370274 2013-05-22

Publications (2)

Publication Number Publication Date
EP2806079A2 true EP2806079A2 (de) 2014-11-26
EP2806079A3 EP2806079A3 (de) 2014-12-10

Family

ID=50732077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14169286.3A Withdrawn EP2806079A3 (de) 2013-05-22 2014-05-21 Gekühlte Dachkonstruktion

Country Status (4)

Country Link
US (1) US20150017907A1 (de)
EP (1) EP2806079A3 (de)
JP (1) JP2014227830A (de)
CN (1) CN104179303A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800305A1 (de) * 2019-10-03 2021-04-07 Excellent Holding ApS Dachsteinkonvektionskonstruktion

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102005944B1 (ko) * 2016-10-19 2019-08-01 주식회사 만도 주차 보조 시스템 및 그 제어 방법
CN113309303A (zh) * 2021-06-10 2021-08-27 项青青 一种钢结构节能建筑降温屋顶结构及降温方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674249A (en) 1985-09-16 1987-06-23 Carveth W Bennett Sr Roofing and decking construction
US5509244A (en) 1991-05-13 1996-04-23 Bentzon; Frank Flooring system having joinable tile elements, particularly plastic tiles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5632678A (en) * 1996-05-28 1997-05-27 Doelfel; John G. Roof vent for a clothes dryer
DE29713226U1 (de) * 1997-07-25 1997-11-20 Wolf, Eberhard, 79280 Au Drainageelement
WO2004092510A1 (en) * 2003-04-17 2004-10-28 Evers, Marinus, Gerardus, Maria Roof reinforcement element, combination of such an element with a roof and method for making such an element
DE102007042527A1 (de) * 2007-09-07 2009-03-26 Vahlbrauk, Wolfgang, Dipl.-Ing. Notablauf zur Entwässerung einer Fläche
US8740678B2 (en) * 2009-11-20 2014-06-03 Building Materials Investment Corporation Ridge vent with powered forced air ventilation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674249A (en) 1985-09-16 1987-06-23 Carveth W Bennett Sr Roofing and decking construction
US5509244A (en) 1991-05-13 1996-04-23 Bentzon; Frank Flooring system having joinable tile elements, particularly plastic tiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800305A1 (de) * 2019-10-03 2021-04-07 Excellent Holding ApS Dachsteinkonvektionskonstruktion

Also Published As

Publication number Publication date
CN104179303A (zh) 2014-12-03
JP2014227830A (ja) 2014-12-08
EP2806079A3 (de) 2014-12-10
US20150017907A1 (en) 2015-01-15

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