WO1994005875A1

WO1994005875A1 - Roof air-vent pipe made of plastic

Info

Publication number: WO1994005875A1
Application number: PCT/EP1993/001616
Authority: WO
Inventors: Johannes Klöber
Original assignee: Kloeber Johannes
Priority date: 1992-08-27
Filing date: 1993-06-24
Publication date: 1994-03-17
Also published as: DE59301993D1; ATE135786T1; DE9211553U1; AU4500693A; EP0658234A1; EP0658234B1

Abstract

The invention concerns a roof air-vent pipe (D) made of plastic, with a roof-covering plate (1) over which is fitted a dome (2) with a cap (6) which carries the vent pipe (3). In order to provide a vent pipe which is, in particular, efficient in use, the invention proposes that at least the external surfaces (8) of the dome (2) and the vent pipe (3) have a layer of copper covered with plastic.

Description

00001 Plastic roof vent

00002

00003 The invention relates to a plastic

00004 existing roof vent with over the top of one

00005 roofing slab projecting from and from this

00006 ventilation pipe worn over a cap. 00007

00008 The modern roof covering knows the use from art

00009 fabric of existing roofing sheets. Based on

00010 laying a corresponding to the respective pan type

00011 roofing slab is this further to a dome

00012, which one with a cap-shaped collar

00013 provided ventilation pipe, which is also made of plastic

00014 fabric exists. Such solutions allow inclination

00015 position and also include fan covers, antenna

00016 gears etc. 00017

It is known to clad the U0U19 bushings that protrude from the roof skin with copper sheet and generally also to

00020 guides through a hood or a helmet-like roof

00021 chen from this material to protect. The

00022 weathering effective over time leads to

00023 fertilizer from rust. This bronze, considered as willkoiranen

00024 ze- or verdigris-colored patina creates one in all

00025 rule estimated appearance of such roof penetrations.

00026 Such a roof vent is from the brochure KLÖBER,

00027 edition 1970, page 1 (Studio booth K 202 70) known. 00028

00029 Finally, from DE-PS 284 185 the pre-existing

00030 blow, such the roof skin protruding bushings

00031 made of sheet metal also in an inclinable arrangement of

00032 training pipe. 00033

00034 object of the present invention is the mentioned

00035 functional elements of modern roofing a To give 00036 speaking aspired appearance, this over the longest

00037 times of use and without the use of expensive metals. 00038

00039 This problem is solved by the in claim 1

00040 bene invention. 00041

The subclaims are advantageous developments of the

Subject matter of the invention.

00044

According to such a design is one in its exterior

00046 the impression of classic patina hardly

00047 stratification on roof ventilators etc. achieved. The 00048 durability is surprisingly high. One grows from this

00049 remarkable service life. The production costs are

00050 understandably far below that of classic copper

00051 sheet covers. A corresponding retrofit

00052 already installed roof vent. Also

00053 can achieve high contour accuracy, such as

00054 this is not the case, for example, with copper sheet.

00055 is now advantageously carried out so that at least

00056 the outer surface of the cathedral and that of the ventilation pipe

00057 have a plastic-overlaid copper portion.

00058 The gradual weathering of plastic, along with

00059 the "braking" degradation of the plastic brings

00060 the desired patina over the longest service life. With through

00061 copper portion, the effect remains practically unaffected

Preserved 00062 borders. Another type of plastic cover

00063 copper addition especially for the outer surface

Coverage covering 00064 also consists in the fact that the external

00065 surface has a patina green plus protective lacquer layer,

00066 which in turn is covered with a copper lacquer

00067 layer. The copper lacquer applied last

00068 layer containing a binder and Isolex copper

00069 flakes and finely ground copper powder is the

00070 exposed to weathering. The copper lacquer layer is 00071 also built up as a weatherable layer.

00072 A bronze color will therefore appear over time

00073 brown - to black or, depending on the setting, also

00074 green discoloration. The weather-related degradation of this

00075 outer layer goes on for several years and closes

00076 also the degradation of the binder resin used.

00077 The degradation due to the weather naturally falls locally

00078 different. In addition to more intensive areas

00079 also proposes such delayed layer reduction. In the north

00080 times trap it would become a kind of staining

00081 come. But since one of the weatherable layers

00082 color-coded, protected primer is present,

00083, for example, the patina green layer mentioned remains

00084 get the same look. By becoming visible

00085 of the protected patina paint is given to the roof ventilation

00086 ter the appearance of a natural copper patina, we-

00087 also in this late phase. With knowledge

00088 properties of the paints used

00089 periods can be reached up to 30 and more years,

00090 in which the roof vent has the desired weathering

00091 or the impression of the rust forming weathering

00092 shows. Even in cases where the applied

00093 stratification due to injuries or damage

00094 would be removed prematurely, the plastic portion

00095 dark brown pigmented, so as to visually give the impression

00096 awaken that the patina has not been fully used

Has 00097. This dark brown pigmentation of the plastic part

00098 les is achieved with iron oxide pigments that

00099 have slightly increased within 2 to 3 years

00100 gray, so that subsequently at least visually

00101 has no significant contrast to the patina layer

00102 is created. Regarding the patina green protective lacquer layer

00103 is based on weatherproof polyacrylics, polyurethane

00104 than resins, vinyl copolymer / isocyanate resins

00105 handles. This coating tolerates in particular 00106 way stresses resulting from temperature fluctuations

00107 genes and influences. After all, it has to be considered that

00108 usually an area that must be covered

00109 is minus 30 ° C and plus 65 ° C. It is therefore related

00110 on the layers with each other and on the carrier material

00111 al to an equal expansion coefficient

00112 pay attention. Regarding the copper lacquer layer it is

00113 um vinyl copolymer / isocyanate. Also regarding this

00114 copper paint layer are the desired properties

00115 before. The invention further proposes that the

00116 patina green layer and the protective lacquer layer on each other

00117 are applied wet-on-wet. The latter results

00118 a high adhesive effect of the layers. A wet-on-wet-on

00119 wearing is particularly advantageous if the patient

00120 na green layer in a speckled manner. The protective

00121 lacquer layer extends ^' like a protective screen

00122 over the patina green layer. Both layers act as

00123 homogeneous layers, their respective properties opti-

00124 times fulfilling. The correspondingly translucent or

00125 transparent protective lacquer layer - it becomes a clear lacquer

00126 used - does not affect the color effect

00127 the best simulating natural weathering

00128 preserved primer. In certain cases

00129 of this two-layer primer is equal to one

00130 protective primer-containing.

00131 Note the prevailing at the place of use

00132 climate and also the environmental conditions. Do these fall

00133 weight, so it turns out an isolated

00134 protective layer may as more useful. Therefore it can

00135 consistently under other conditions as cheaper,

00136 prove to be more economical if patina

00137 Green and protective varnish applied in a single layer

00138 gen. The thickness of the copper lacquer layer is 15-60

00139 My with a copper content of 5-30% in the binder.

00140 Regarding the plastic molding compound incorporated 00141 copper portion finally proves a measure

00142 going as advantageous that the copper portion of

00143 a powdery and / or platelet-shaped interference in

00144 the plastic molding compound of the roof vent

00145 is. Such interference leads to a homogeneous throughput of the copper content. Whichever route favorit

00147 siert, the temperature of the addition of the

00148 copper portion in any case also as advantageous.

00149 For example, in the case of dark or black

00150 zen roof covering plates or roof ventilators effective

00151 avoided that such roof ventilators by sun

00152 Heating up too much, for example in the sense that

00153 discards its roof covering plate, i.e. bends.

00154 The temperature difference below towards the top is between

00155 see 5 and 10 ^° C. In the layer application process it is

00156 organizationally advantageous in that only practical

00157 one color needs to be kept in stock,

00158 namely the copper lacquer layer. Regarding the heat

00159 charge remains to be noted that this

00160 almost reaches the real copper plates,

00161 with the basic advantage that there lying

00162 Snow quickly removed when exposed to the sun

00163 melts. Especially short protruding ventilation pipes

00164 can therefore not snow. 00165

00166 The object of the invention is based below

00167 of two illustrative exemplary embodiments

00168 le explained in more detail. It shows: 00169

00170 Fig. 1 the roof vent designed according to the invention

00171 ter in side view, 00172

2 shows the section along line II-II in FIG. 1,

00174 greatly enlarged and a three-layer 00175 showing order, according to the first execution

00176 example, 00177

00178 Fig. 3 is a same section showing a

00179 two-shift order, the basic

00180 layer contains a protective component and 00181

4 shows a corresponding section, the proven

00183 suggestive process as well as under

00184 the choice of measure according to Figure 3 and 00185

00186 FIG. 5 shows a vertical view corresponding to the sectional figures.

00187 cut through the pipe body, for example

00188 per, whereby the copper plating here by one

00189 the copper content in the roof

00190 fan-forming body is achieved

00191 as a second embodiment of the invention. 00192

00193 The illustrated uachentlüfter is in its entirety

00194 designated D. It is made of rigid PVC. In the case of

00195 spraying is based on the later, i.e. further down

00196 coating discussed matched mold release agent,

00197 used in particular silicon-free. In the case of deep-drawing

00198 hens finds an adapted surface pretreatment

00199 instead. 00200

00201 A roof inlet serves as the basic element of the roof vent D

00202 cover plate 1. This is adapted to the surface

00203 picture of a roof skin like the others, not penetrated

00204 roof tiles designed. 00205

00206 At the top of the roofing plate 1 protruding

00207 is a cathedral 2. Said cathedral contains a through

00208 step hole for a ventilation pipe 3. The latter exists 00209 also made of hard PVC. It is useful in two parts

00210 designed. 00211

00212 The upper pipe part 3 'has a meshed ventilation

00213 opening 4. This is provided in pairs; in the

00214 pipe wall are two vents 4 in

00215 diametrical counterparts. 00216

00217 The upper cross-sectional area can be

00218 Migen insert 5 be occupied. 00219

00220 Alternatively, and not shown, the free

00221 end of the upper tube part 3 'also with a driving rain

00222 Secure the hood. 00223

00224 To achieve an inclination adjustment of the ventilation pipe

00225 res 3 relative to the inclination plane of the roof covering

00226 te 1 said ventilation pipe is supported by a collar-like cap 00227 6 adapted to the shape of the top of the dome 00228 2. The latter forms a convex guide surface. 00229

00230 The passage hole in cathedral 2 points, with its longer one

00231 oval axis in the inclination plane of the roof covering

00232 te 1 lying, an elongated hole, which the in the drawing

00233 tion vertically aligned ventilation pipe 3 in the o

00234 said extension range of 20

00235 to 40 ° allowed. 00236

00237 The set position is via a locking and locking

00238 device 7 can be secured. 00239

00240 The lower pipe part 3 '' acts as a connecting piece

00241 to a ventilation hose, not shown. Latest-

00242 rer consists of soft PVC and is usually as

00243 Harmonic body designed. 00244 The material of the roof vent D contains a dark

00245 brown to gray-green pigmentation. Here offers itself

00246 iron oxide. This has the property within

00247 slightly gray for a few years with a stitch in

00248 bronze green. 00249

00250 The outer surface of the dome 2 and the fan tube 3 with

00251 cap 6 is coated. It is according to a

00252 embodiment of a multi-layer order. 00253

00254 Starting at the outer surface 8 of the object

00255 in the first embodiment shown in FIG.

00256 game for a three-shift order and in which

00257 Figure 3 shown order for a two-layer. 00258

00259 The first layer is a patina green layer A. The

00260 Layer A is followed by a protective lacquer layer B. It is

00261 visible, at least translucent. It is clear varnish.

00262 With regard to these layers, they are products

00263 based on weatherproof polyacrylic resins,

00264 polyurethane resins, vinyl copolymer / isocyanate resins. 00265

00266 The third, outer layer is a copper lacquer layer

00267 C based on vinyl copolymer / isocyanate. Last

00268 tere layer C is weatherable. It forms one

00269 as well as occurring on copper plates over time

00270 noble rust greenish to green colored kind. Depending on the

00271 equipment can also be used for brown to black

00272 coloring come as known on bronze sculptures etc.

00273 This desired effect results over a period of time

00274 from several years and also from area to area

00275 area in different intensities. So start

00276 the firedamp side a faster patination effect

00277 on, with correspondingly faster removal. 00279 This does not disturb the desired optical effect, however

00280 the primer in the same color this effect

00281 suggests here only in a far more effective protected

00282 removal zone, namely the patina green plus protective lacquer

00283 Layer A / B. 00284

00285 The patina green layer A has an application thickness of approx.

00286 20-30 My and a weight of approx. 80 grams per m. The

00287 protective lacquer layer B is approx. 20-30 My thick and is included

00288 a m weight of about 80-100 grams. In contrast, is

00289 the thickness of the copper lacquer layer C approx. 20 My, its

00290 weight is approx. 50 grams per m. 00291

00292 The range of the thickness of the copper lacquer layer C lies between

00293 see 15 and 60 my. The copper content for binding agent

00294 part ranges between 5% and 30%. It is about

00295 a mixture of copper plates and copper powder

00296 ver. The platelet size is 50 my, that of the powder

00297 at 1-5 my. 00298

00299 The protected primer is in the form of layers A / B

00300 with a lifespan of approx. 30 years. 00301

00302 Even acceleration due to damage to the

00303 "natural erosion" would be due to the

00304 colored, iron oxide shot plastic the "picture"

00305 do not disturb. Leave different weathering

00306 rather an even more lively structure, one

00307 is practically equivalent to such classic copper plates. 00308

00309 The same effect also results with the variant

00310 or solution according to FIG. 3, in the patina green and protective

00311 paint are applied in a single layer there

00312 denotes A / B, which layer then the copper 00313 paint layer C follows. Layer A / B is there optically

00314 made clear by mixing the hatch symbols. 00315

00316 Figure 4 shows that exposed to direct weathering

00317 side of the copper lacquer layer C in the form of a certain

00318 fissure. 00319

00320 In the drawing Figure 1 it can be seen that only the

00321 highly exposed areas of the roofing tile D in

00322 are coated in the manner described, ie cathedral 2,

00323 ventilation pipe 3 and its cap 6 and the visible side

00324 of the grid-shaped insert 5. 00325

00326 Because the weathering effect also in the joint area

00327 F between the underside of the collar-like cap 6 and

00328 the top of the cathedral 2 continues, here is the

00329 once set position of the ventilation pipe 3 securing

00330 participation. In addition, there is a sealing

00331 acting decay layer, which is suitable for the warm and cold

00332 contingent deformations. 00333

00334 The one shown in part in Figure 5, the other

00335 embodiment embodying roof vent D, only

00336 the ventilation pipe 3 is partially reproduced there,

00337 has copper plating such that at least the

00338 outer surface 8 of the ventilation pipe 3 and that of the dome 2

00339 have a plastic-covered copper portion.

00340 The copper content is due to a rich evaluation of the

00341 symbolizes surface cross-section. These points

00342 len powdery and / or platelet-shaped particles 9 00343. It is an interference in the

00344 roof vent D forming plastic molding compound of

00345 roof vent D. 00346 00347 Of course, the ventilation pipe 3 is also molded here.

00348 te cap 6 and the roofing plate 1 in this

00349 copper plating included. 00350

00351 The copper content is 5-30%. The platelet size

00352 is approx. 50 My, that of the copper powder is included

00353 1-5 My. 00354

00355 The copper powder is homogeneous on the entire cross

00356 section thickness of the body forming the roof vent D

00357 distributed. In relation to the term "plastic

00358 gene "is both to be understood that such copper particles

00359 are embedded in the outer surface 8 (type of crumble

00360 chen coating), i.e. partially cantilever, as well

00361 immediately below the outer surface in a still

00362 completely covered position, but with the

00363 time through the degradation of the binder or the

00364 Plastic compound gradually layer by layer

00365 are exposed and then because of their weathering

00366 generate the desired patina green visible surface. It is

00367 understandable that this over longest periods in the

00368 described way takes place effectively. 00369

00370 The in the above description, the drawing and

Features of the invention disclosed in the claims can

00372 both individually and in any combination for

00373 the realization of the invention may be of importance.

00374 All disclosed features are essential to the invention. In

00375 the disclosure of the application is hereby also

00376 disclosure content of the associated / attached priori

00377 documents (copy of the pre-registration)

00378 included. 00379

Claims

00380 A n s r u c h e 0038 1

00382 1. Plastic roof vent (D) with over

00383 protrude the top of a roof covering plate (1)

00384 the dome (2) and carried by this over a cap (6)

00385 NEN ventilation pipe (3), characterized in that at least

00386 least the outer surface (8) of the dome (2) and the ventilation

00387 tubes (3) a plastic-overlaid copper portion

Own 00388. 00389

00390 2. Roof vent according to claim 1 or in particular

00391 according to, characterized in that the outer surface (8)

00392 wears a patina green plus protective lacquer layer (A, B),

00393 which in turn is covered with a copper lacquer

00394 layer (C). 00395

00396 3. Roof vent according to one or more of the previously

00397 claims or in particular according thereto, thereby

00398 indicates that the copper lacquer layer (C) as a weathered

00399 layer capable of aging. 00400

00401 4. Roof vent according to one or more of the previous ones

00402 claims or in particular according thereto, characterized

00403 net that the patina green layer (A) and protective lacquer

00404 Layer (B) applied wet-on-wet one on top of the other

00405 are. 00406

00407 5. Roof vent according to one or more of the previously

00408 claims or in particular according thereto, thereby

00409 indicates patina green and protective varnish in one

00410 are not applied (A / B). 00411

00412 6. Roof vent according to one or more of the previously

00413 claims or in particular according thereto, thereby 00414 indicates that the entire roof covering plate (1)

00415 is coated accordingly. 00416

00417 7. Roof vent according to one or more of the previously

00418 claims or in particular according thereto, thereby

00419 indicates that the copper lacquer layer (C) 15-60 My

00420 carries 5-30% copper in the binder. 00421

00422 8. Roof vent according to claim 1 or in particular

00423 according to, characterized in that the copper portion of

00424 a powder and / or platelet-shaped interference in

00425 the plastic molding compound of the roof vent (D)

00426 det.