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DE3125868A1 - Air-supply and air-extraction element for subsequent installation into pitched roofs - Google Patents

Air-supply and air-extraction element for subsequent installation into pitched roofs

Info

Publication number
DE3125868A1
DE3125868A1 DE19813125868 DE3125868A DE3125868A1 DE 3125868 A1 DE3125868 A1 DE 3125868A1 DE 19813125868 DE19813125868 DE 19813125868 DE 3125868 A DE3125868 A DE 3125868A DE 3125868 A1 DE3125868 A1 DE 3125868A1
Authority
DE
Germany
Prior art keywords
trussing
sheet
air
ventilation
supply
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Withdrawn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
DE19813125868
Other languages
German (de)
Inventor
Dieter Ing.(grad.) 5804 Herdecke Jablonka
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.)
Ewald Doerken AG
Original Assignee
Ewald Doerken AG
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 Ewald Doerken AG filed Critical Ewald Doerken AG
Priority to DE19813125868 priority Critical patent/DE3125868A1/en
Publication of DE3125868A1 publication Critical patent/DE3125868A1/en
Withdrawn legal-status Critical Current

Links

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
    • E04D13/17Ventilation of roof coverings not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Tents Or Canopies (AREA)

Abstract

The function of pitched roofs depends mainly on sufficient ventilation. In order to avoid the formation of condensation on the hard roofing or on the trussing sheet, the spaces between the hard roofing and trussing sheet or between trussing sheet and heat insulation are to be provided with sufficient air-supply and air-extraction openings. It is possible to allow for such ventilation openings in the design, but, in practice, this is often neglected and/or the planner or even the builders do not attach enough importance to it. Since a subsequent ventilation, at least of the space between trussing sheet and heat insulation, was not possible hitherto without a large amount of subsequent outlay, the object of the invention is to develop an element which can be installed by slitting the trussing sheet at the eaves plate or the jamb wall and in the vicinity of the ridge from the inside without further secondary operations and, from the outside, for example when the roofs are dismantled, by taking up two tiles. The lateral lugs located on the ventilation element make it possible to push the element into a slit-shaped opening of the trussing sheet, and fasten it there, without additional mechanical fastening. <IMAGE>

Description

Zu- und Abluftelement für geneigte Dächer zum nach-Supply and exhaust air element for pitched roofs to

träglichen Einbau Beim Bau von geneigten, mit Dachziegeln oder sonstigen Bedeckungsmaterialien zu versehenden Hausdächern sollen, um Wasserdampfkondensationsprobleme zu vermeiden, Zu- und Abluftöffnungen so angebracht sein, daß Luft unter der harten Bedachung, aber oberhalb einer evtl.Wearable installation When building inclined, with roof tiles or other Roofing materials to be covered are said to avoid water vapor condensation problems To avoid air intake and exhaust openings, be placed in such a way that air is under the hard Roofing, but above a possibly

vorhandenen Wärmedämrnung zirkulieren kann. Kondensierendes Wasser unterhalb der harten Bedachung führt zu einer Durchfeuchtung insbesondere der Wärmedämmschichten, die mit einer Durchfeuchtung ihre Wärmedämmeigenschaften weitgehend verlieren.existing thermal insulation can circulate. Condensing water below the hard roofing leads to moisture penetration, especially of the thermal insulation layers, which largely lose their thermal insulation properties with moisture penetration.

Zum Schutz gegen von außen eindringende Feuchtigkeit z.B. Flugschnee oder bei Beschädigungen der harten Bedachung ist heute üblicherweise unter der harten Bedachung, aufliegend auf den Sparren und damit oberhalb der Wärmedämmung eine Unterspannbahn angeordnet. Soweit Wasserdampf zwischen harten Bedachung und Unterspannbahn kondensiert, kann das anfallende Wasser über die Unterspannbahn zur Traufe hin abgeleitet werden, ohne Durchfeuchtigkeitsgefahren für die Wärmedämmung.To protect against moisture penetrating from the outside, e.g. flying snow or if the hard roof is damaged, it is usually under the hard roof today Roofing, lying on the rafters and thus a sarking membrane above the thermal insulation arranged. Insofar as water vapor condenses between the hard roofing and the roofing membrane, the accumulating water can be drained to the eaves via the underlay, without risk of moisture penetration for the thermal insulation.

Soweit Kondensationsgefahren zwischen Unterspannbahn und Wärmedämmung drohen, müssen diese durch Zu- und Abluft beseitigt werden.As much as there is a risk of condensation between the roofing membrane and the thermal insulation threaten, these must be eliminated by supply and exhaust air.

In der Baupraxis wird diese Belüftung der Dachkonstruktion bislang nicht ausreichend beobachtet. Um die dadurch aufgetretenen Schäden in Zukunft zu vermeiden, wird in dem Neuentwurf der DIN 4108, Teil 3 ausdrücklich vorgeschrieben, daß 200 qcm Belüftungsöffnung je Laufmeter an der Traufe erforderlich sind.In building practice, this ventilation of the roof structure has been used so far insufficiently observed. To avoid the damage that has occurred as a result in the future avoid, is expressly stipulated in the new draft of DIN 4108, Part 3, that 200 square centimeters of ventilation opening per running meter are required on the eaves.

Seit 1965 sind über 100 Mio. qm geneigte Dachflächen mit Unterspannbahnen unterspannt worden, wobei überwiegend die notwendigen Zu- bzw. Abluftöffnungen nicht angebracht worden sind.Since 1965 there are more than 100 million square meters of sloping roof areas with underlays underwent, although mostly the necessary air intake and exhaust openings are not have been attached.

Diese Erfindung macht es sich zur Aufgabe, zur Erfüllung der Forderungen der DIN 4108 Teil 3 ein definiertes Lüftungselement zu entwickeln, das zum nachträglichen Einbau geeignet ist, und garantiert, daß zu- und Abluft mit 200 qcm pro Laufmeter der Traufe ausgebildet werden. Das erfindungsgemäße Bauelement kann nachträglich durch Einschlitzen der Unterspannbahn sowohl in Höhe des Drempels bzw. der Fußpfette als auch in Firstnähe von innen ohne weitere Nebenarbeiten, von außen etwa bei ausgebauten Dächern durch Aufnehmen von zwei Pfannen eingebaut werden.This invention makes it its task to meet the demands of DIN 4108 Part 3 to develop a defined ventilation element that can be used subsequently Installation is suitable, and guarantees that supply and exhaust air with 200 square cm per linear meter the eaves are trained. The component according to the invention can subsequently by slitting the roof membrane both at the level of the jamb and the purlin as well as near the ridge from the inside without any additional work, from the outside, for example when the building is expanded Roofs can be installed by picking up two pans.

Bei dem erfindungsgemäßen Bauelement handelt es sich um ein Lüftungsteil mit Querstegen zur Stabilisierung und zum Schutz gegen einfliegende yWgel, vorzugsweise in den Abmessungen 4 x 20 cm, seitlich an den Schmalseiten mit offenen Dreiecken versehen, die in zusätzliche seitliche Kunststoffteile, die laschenförmig ausgebildet sind, auslaufen und somit ein Einschieben und Befestigen des Lüftungs- Bauelementes in eine schlitzförmige Öffnung der Unterspannbahn ermöglichen ohne zusätzliche mechanische Befestigung.The component according to the invention is a ventilation part with crossbars for stabilization and protection against flying yaws, preferably in the dimensions 4 x 20 cm, laterally on the narrow sides with open triangles provided that in additional lateral plastic parts that are tab-shaped are, run out and thus an insertion and fastening of the ventilation component in a slit-shaped opening of the roof membrane allow without additional mechanical Attachment.

(Zeichnung 1)(Drawing 1)

Claims (2)

Patentansprüche 1. Zu- und Abluftelement aus schlagzähem und flexiblem Kunststoff zum nachträglichen Einbau in mit einer Unterspannbahn versehene, geneigte Dächer gekennzeichnet durch eine kaminartig ausgebildete kastenförmige Raumform, wobei der Öffnungsquerschnitt durch beliebig angeordnete Stege verstärkt sein kann.Claims 1. Supply and exhaust air element made of impact-resistant and flexible Plastic for retrofitting in sloping with a roof membrane Roofs characterized by a chimney-like box-shaped room shape, wherein the opening cross-section can be reinforced by webs arranged in any way. 2. Zu- und Abluftelement nach Anspruch 1, dadurch gekennzeichnet, daß durch zusätzliche seitliche Kunststoffteile Klemmlaschen ausgebildet werden, die ein Einschieben und Befestigen des Lüftungselementes in eine vorhandene Unterspannbahn ohne zusätzliche mechanische Befestigung ermöglichen.2. Supply and exhaust air element according to claim 1, characterized in that that clamping lugs are formed by additional plastic side parts, inserting and securing the ventilation element in an existing roof membrane enable without additional mechanical fastening.
DE19813125868 1981-07-01 1981-07-01 Air-supply and air-extraction element for subsequent installation into pitched roofs Withdrawn DE3125868A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813125868 DE3125868A1 (en) 1981-07-01 1981-07-01 Air-supply and air-extraction element for subsequent installation into pitched roofs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813125868 DE3125868A1 (en) 1981-07-01 1981-07-01 Air-supply and air-extraction element for subsequent installation into pitched roofs

Publications (1)

Publication Number Publication Date
DE3125868A1 true DE3125868A1 (en) 1983-01-20

Family

ID=6135808

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813125868 Withdrawn DE3125868A1 (en) 1981-07-01 1981-07-01 Air-supply and air-extraction element for subsequent installation into pitched roofs

Country Status (1)

Country Link
DE (1) DE3125868A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591255A1 (en) * 1985-12-05 1987-06-12 Braas & Co Gmbh AERATION AND DESAERATION ELEMENT FOR ROOF ASSEMBLY BANDS
DE3630982A1 (en) * 1986-09-11 1988-03-24 Braas & Co Gmbh FAN ELEMENT
GB2374092A (en) * 2001-02-28 2002-10-09 Easyvent Ltd Roof ventilation
US20110111690A1 (en) * 2009-11-12 2011-05-12 Henderson John C Roof Ventilation Apparatus
EP2556305A4 (en) * 2010-04-06 2018-04-11 Gregory S. Daniels Ventilation system for roof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591255A1 (en) * 1985-12-05 1987-06-12 Braas & Co Gmbh AERATION AND DESAERATION ELEMENT FOR ROOF ASSEMBLY BANDS
DE3630982A1 (en) * 1986-09-11 1988-03-24 Braas & Co Gmbh FAN ELEMENT
GB2374092A (en) * 2001-02-28 2002-10-09 Easyvent Ltd Roof ventilation
US20110111690A1 (en) * 2009-11-12 2011-05-12 Henderson John C Roof Ventilation Apparatus
US9022845B2 (en) * 2009-11-12 2015-05-05 John C. Henderson Roof ventilation apparatus
USRE47799E1 (en) 2009-11-12 2020-01-07 John C. Henderson Roof ventilation apparatus
EP2556305A4 (en) * 2010-04-06 2018-04-11 Gregory S. Daniels Ventilation system for roof

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Legal Events

Date Code Title Description
8130 Withdrawal