DE1409911A1 - Rollable maintenance-free roofing and waterproofing membrane - Google Patents

Description

Patent attorney

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DmL- '. ■; .- t; H. Huss attorney's file : Sch 211 " ^{v 1409911}

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Roiilaare maintenance-free roof and bi

The Erfiriduiig relates to a rollable j maintenance-free roofing and waterproofing membrane which .gel-iefept is-in rolls to the consumer ^ _1, .Sie- consists of 'a in a bituminous · *) material, such as asphalt or tar, embedded carrier material ^ The surfaces are provided with a release agent, such as fine sand or alkali, in order to prevent them from sticking when they are rolled up. If-such a path as in Itihsa ^ tZ-: exposed path-, _t z. If Daohbahn-Oberla.gg »^ is used, it receives on one surface a protective layer rolled into the top layer of biturns aiii, for example, an inert slate or a comparable protective material, which protects the bitumen from the

New Urtösrtögen in,? »

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destructive effects of sun, wind and cold ^

pear to limit the invention to this hereinafter primarily a roofing membrane, usually called "roofing felt" in practice.

Roofing felt is used to a large extent as an underlay for roofing made of roofing tiles: roofing slate, sheet metal, etc. itself is formed. If they in this case on the side remote from the roof side (outside) with a protective coating of festgewalztem in the bitumen covering Bestreuungsmaterial in the form of preferably more or "" less flat grains or flakes of crushed-S'dhiefei barren "- ^·; other Jfaturste "in or from ceramic or -a ^! different ^? '' Two-dimensional material is provided that effectively "covers the bitumen and protects against the damaging effects of the sun, weather and wind, so it is designated as maintenance-free, with the purpose of lifting the sprinkling material and the roof surface a different color than the black defs itsphalte imprints and gives it a more appealing appearance> ■ - ■

The maintenance-free roofing felt has given the roofing felt manufacturers the opportunity to grant long, risk-free guarantee periods for roofing made with this roofing felt, without the roof surface being repainted with bituminous substances from time to time

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must become. The long guarantee periods are a decisive factor Has become a factor in the competition between manufacturers of maintenance-free roofing felt as they over time from five to ten and even up to Ai fifteen years have been extended »Experience has shown that it can

* Carefully executed decals with - maintenance-free roofing felt of good quality - even last significantly longer without maintenance. .

In all Daehpappeiisorten are the soluble part

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z. B “, bitumen per m.” And the type of base cardboard used or another inert substance quality factors, which are continuously monitored.

For the past ten to fifteen years, iaan has now developed the 3-lasvlies-Daöh-uj.id waterproofing membrane, which with an ai fleece is made from staple glass fibers. These Glass fleece roofing membrane is made up of meanwhile well-known Reasons s.ahr gvx introduces and is- im. stone ones

j-aie for Dacheir-deckun ^ eri iieran ^ ezo ^ er ·., wob, ei .als .-. einsr .. ■ aie.S5r advantages the re ^ enuter iiiiti Rohpäppe: her ^ es / csllt-er Dachc-aJm . cessere x / ieg'sanüceit and Geschi: ei.ii; -keit zx ^ esehex, will. . . ;. . . ~. .- - _. . .- ■ ".... .- · - .. -. .-. ■", ■

Also for maintenance-free roof seals: .iit very high Lifetime used :: ian Slasvlies roofing membranes .. ü:.; ö.ie required long service life. ere; icr-ea, ^ ao it longer ' Time, however, only two ^ 'ege, next either -ily so far

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conventional double-layer installation? jsetS6en or the topsheet with a stronger bitumen Becksehiclit zn provided by a d'Etilagige to * 2, since the first 'option, ie, di-3 drsilagige.Verlegung, a Glaevlies-Deehbalin-covering was eafcr much more expensive _t also tried to put the second ¥ eg over you 'thicker top layer of the upper layer au toeschreitei-u

. Elsr-would , however, be found out ^. that oil fleece »Bachfeefeacä with egg-shaped DeclrsoMchtsn according to the usual Mettled® were just divided out because the relatively small cross-cut of thin glass fleeces with a fair top layer thickness effectively capture vmü intensify Tests have shown that - this limit up to about 1200 g / a ² soluble portion of the top layer (without filler)

a) Hairline cracks in the top layer, which is too thick and not completely covered in cross-section by the glass fleece

b) poorer extension option at colder Weather through the then brittle bitumen of the strong top layer

c) Too high roll weight and therefore insufficient Stability of the rolls transported and stored upright, especially in summer at high temperatures

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'* d) .low shear strength (tear strength), which often happens when "laying the glass fleece stream railway and with roof coverings that are exposed to strong winds makes it unfavorably noticeable,

The difficulties described under a) to d) above ' with G-lasTlies roofing membranes, which have a soluble portion of possessing over 1200 g / m 2 could not be achieved by using either detach from so-called reinforced fleeces · As reinforced are referred to as nonwovens if they have a cross-section or have strands of threads or fibers arranged at a distance from one another on their surface.

A step forward therefore meant the introduction a roofing and waterproofing membrane made of bitumen or the like with a reinforcement that organic carrier material at a distance from each other and from "consists of the outer surfaces of the track (French patent specification 945.562), in the production of such a roofing and sealing membrane was expediently so.vorggangs that bitumen is embedded between the fleece layers, so [that the sanding or sprinkling does not ■ take into account, the following structure results:.

Bitumen - glass fiber fleece - bitumen - glass fiber fleece - bitumen.

The decisive advantage of greater flexibility and ease of use, which is particularly important in terms of handling

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. However, more and more takes a back seat "if V-man the proportion of bitumen increases, so the roofing and waterproofing membrane makes it thicker, as is often the case and in particular in the case of membranes provided with several carrier layers, the aim is to create a multi-layer roof covering or Insulation, d. H. a roofing or insulation with two oddr three superimposed lanes / to be avoided »

But there the flexibility and suppleness of the path the rolling up of the same for the sand and the storage as well as the laying possibilities facilitated and the formation avoids hairline cracks on the surface, solves the Invention the problem of maintaining or improving this flexibility and suppleness * To this end, it is proposed the bitumen layer lying between layers of the inorganic carrier material serving as reinforcement To give higher plasticity, i.e. pure bitumen with little or no addition of mineral fillers use »In this way a neutral, from" un- · filled "bitumen, particularly flexible zone, a kind of joint, so to speak, which ensures that the web can bend and roll well. The excellent properties the rollable, maintenance-free roofing and waterproofing membrane made of bitumen and one made of layers of an inorganic one Carrier material based on existing embedded reinforcement so that the layers embedded in the bitumen as reinforcement are on both sides of a neutral zone of the cross-section

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The production of a roof and waterproofing membrane according to ^? - '. ::

.The invention with, for example, two layers of glass fiber fleece, _t .

as reinforcement can be done in such a way that the glass '. - ^u .:>

fiber fleece layer normally passed through a roofing felt machine,; '

d * h. is first pre-impregnated with bitumen, whereby the "> ^ * Vliee is soaked with bitumen and one on both sides Bitumen coating receives. The excess bitumen is then

removed by means of a scraper and then the second « ^!

Glasfaeervlieslage with the bitumen-absorbent first layer V

merged and the resulting web the remaining ^

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Path through the Bach cardboard machine. Led so that one on

apply a top coat on both sides of the membrane and *

Finally, sprinkle crushed slate or the like on one side of the top layer in the usual way and can roll in. Di @ applied top layers then normally consist of one with mineral fillers offset bitumen.

Subject a further feature of the invention can Both layers of the inorganic carrier material consist of a binder-free glass fiber fleece. In this case ί it is expedient to have the layer of unfilled bitumen forming the intermediate layer only on one side of a binder-free Apply glass fiber fleece during manufacture. Then the decfc layers are then applied to the two outer surfaces Applied from normal filled bitumen, the result is particularly good saturation; one speaks of

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! that the reinforcing layer in the bitumen ^ uerschnitt ^w rises ".

The use of a binder-free glass fiber fleece brings the further part of the gate with it »that this one larger volume and, in particular, greater elasticity than a glass fiber fleece bonded with a binder has ·, 'which is also reflected in · the flexibility and suppleness is beneficial.

For the same reason, you can also for at least a legend of the inorganic carrier material an asbestos cardboard use because this is due to the natural felting of its pasern binder-free and therefore more than a proportion has great elasticity. This includes all, that is to say, a fraction of the inorganic carrier material Glass fiber fleece and the other is an asbestos cardboard, the asbestos cardboard will be used as the layer; / "Öei. Der in der rolled up roofing membrane and waterproofing membrane in every roll position of the each larger bending radius occurs «.

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Claims (3)

pUng. CH. HUSS file number P 14 09 911.7 1409311- κΑ - Parfcnkir «* ·« "Attorney's file ι SoH 211 Ιο« »οϋ« ι «» β · Μ Garmisch-Partenkirohen »7 * March 1968 Hb-H (Today) Pat's answer 1. Rollable, maintenance-free roof and roof membrane from a reinforcement consisting of layers of an inorganic! carrier material embedded between bitumen layers, wherein the outer layers consist of bitumen mixed with a filler, 'g β k e η η ζ e i' Q h η e t through an intermediate layer of unfilled bitumen, whereby A layer of the inorganic carrier material is embedded between the two cover layers and the intermediate layer is. 2. roof «and sealing membrane according to claim 1, characterized marked,. that both lay the inorganic carrier material made of a binder-free glass fiber fleece exist. 3. Roof and waterproofing membrane according to claim 1, characterized -gekennzeich.net that a location of the anor- ^ Ganic carrier material is a glass fiber fleece, whereas the other layer is made of asbestos cardboard. . - 10 - f! tue documents ow. 7 § ιAt * a No. ι sotef * · t * a «« m »· .t.4 *« «». SAO ORfGfNAL
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