WO1999061720A1

WO1999061720A1 - Insulating system inserted in-between roof rafters

Info

Publication number: WO1999061720A1
Application number: PCT/EP1999/002864
Authority: WO
Inventors: Hans-Georg Klein
Original assignee: Klöber, Johannes
Priority date: 1998-05-26
Filing date: 1999-04-28
Publication date: 1999-12-02
Also published as: AU4034499A; EP1000205A1; DE19823419A1

Abstract

The invention relates to an insulation inserted in-between roof rafters (5), having the shape of an unfolding insulating layer (2) fitted with an air-blocking sheet and having open pores, which extends beyond the edges on both sides and has the same thickness as the roof rafters. The invention provides a useful and advantageous solution by allocating a sheet (roof substrate strip) that extends beyond the edges (4', 4'') on both sides, that is waterproof yet allows vapor to pass through and that is fitted on the insulating layer (2) on the side opposite to the air-blocker (3).

Description

00001 Z isehen-rafters insulation system

00002

00003 The invention relates to between the rafters,

00004 insulation that can be introduced in particular with a pitched roof

00005 an insulation layer, which is covered with a

00006 standing, air-blocking film is laminated, according to

00007 Generic term of claim 1. 00008

00009 Such insulation is known on the market. The

00010 insulation layer is made of an open-pored mineral wool

00011 felt or glass wool felt formed. When

00012 sheared film is a plastic sheet,

00013 protrudes on both sides of the insulation layer.

Such insulation is for retrofitting in

00015 used the rafter space. The insulation layer

00016 speaks the rafter space in its width

00017 and the rafter strength in its strength. The laminated

00018 th film is inside the roof and is impermeable to air.

It is particularly impervious to steam. With the marginal

00020 protruding sections can use this insulation

00021 tackers or the like on the rafters narrow sides

00022 are attached from below. The overhangs of the

00023 foils inserted in adjacent rafter spaces

00024 brought insulation overlap, so that in total

00025 together with a flat air seal is given. The

Known insulation is in the form of about 4 m long

00027 sheets are supplied which are rolled up, the 00028 protrusions being folded inwards.

00029

In the prior art are also waterproof, but

00031 water vapor permeable roofing membrane, so-called

Diffusion foils known to be known before covering the

00033 roof laid on the outside in the horizontal direction

00034, with the edge areas from adjacent

00035 lying overlapping foil sheets overlap on the 00036 rafters are applied. On this with the roof

00037 rafter covered rafters is then a counter

00038 battens and battens applied, the latter

00039 can wear the roof tiles. 00040

If such a roof also with thermal insulation

00042 and in particular an internal air barrier

00043 hen, many operations are necessary. The

00044 insulation material must go from below into the rafter space

00045 are brought. 00046

The object of the invention is to create a generic

00048 according intermediate rafter insulation such

00049 liable to train that with less work

00050 an improved sealing of the roof on the one hand against

00051 water penetration from the outside and on the other hand against heat

00052 is given from the inside. 00053

00054 The object is achieved by the

Bene invention, with particular reference to it

00056 is that on the side facing away from the air barrier

00057 water vapor permeable but waterproof film

00058 is sheer, which also has a bilateral edge

00059 has supernatant. 00060

00061 The subclaims represent advantageous developments

00062 of the invention. 00063

According to the embodiment of the invention is a

Given between rafters insulation, which from the outside

00066 to be installed before covering the roof

00067 can. The insulation-Bah-

00068 NEN can with the erection of the roof structure

00069 usually existing crane easily on the roof

00070 are brought. The folded over delivery 00071 stands of the laminated roofing membrane will be

Then 00072 unfolded. The insulation is then from the outside

Brought here in the rafter space, the

00074 protrusions of the roofing membrane on the outside

00075 pointing narrow sides of the rafters nailed or

Be stapled 00076. With the insulation according to the invention

00077 can be used before covering the roof

Build roof tiles heat insulated roof without

00079 complex activities necessary from the roof interior

Are 00080. Folding over the edge protrusions of the air barrier

00081 can be done later. In advantageous

00082 the invention allows that the

00083 roof battens that still hold

00084 bar, i.e. H. without the interposition of thick insulation material

00085 alien, on the rafters or on one of the overhangs

00086 counter battens fixing on the rafters are nailed

00087 can. The vertical laying enables

00088 set for common scaled horizontal laying

00089 also for use on flat roofs. This in particular

00090 re, because the invention has the advantage that the

00091 adjacent roofing membranes in the area

00092 of its protruding sections securely glued together

Can be 00093. To do this, either bring an adhesive

00094 layer on the sections resting on the rafters

00095 of the film, so that the subsequent

00096 adjacent film with its edge projections on this

00097 adhesive layer can be applied. According to the har-

00098 th underground, which is characterized by the immediate

00099 rafters can result when gluing the

00100 edge protrusions a high contact pressure

00101 den. The edge projections can be glued together

00102 but also done with adhesive tape. It is also possible,

00103 that an adhesive layer from the outset on the

00104 edge projection is applied. Advantageously

00105 is this adhesive layer on the outside on the edge 00106 stood so that when the edge protrusion is folded in it

00107 covers. The supernatant advantageously has

00108 about the width of a rafters narrow side. In a

00109 Development of the invention, for the design

00110 of a roofing membrane even independent meaning

00111 has, is the film facing the roof outside

00112 on its side facing the insulation layer, heat-reflective

00113 equipped as required. This can be done, for example

00114 take place that the film is metallized there. Also

00115 a heat reflecting grid is possible. It is

00116 but also provided that the film with a warmer

00117 reflective paint or the like is coated.

00118 The heat reflective color or the heat reflective

00119 coating or finishing can preferably-

00120 ise also on the outward-facing side of the

00121 nnbahn be applied. This makes a summer

00122 rather heat protection. The roofing membrane can

00123 also a stabilizing grid (possibly heat reflective

00124 rend). It can have reinforcement fleeces.

00125 The reinforcement fleece can be one-sided or two-sided

00126 a water vapor permeable but water impermeable

00127 Wear membrane. This membrane can be

00128 ten polypropylene spunbonded (meltblown nonwoven) exist. 00129

00130 In a further development according to the invention

00131 of the respective film, both the roofing membrane, and

00132 also the air barrier is a highly water absorbent

00133 have layer. This layer can be covered by an im

00134 micrometer range applied powdery superab-

00135 be designed sorber, which is able to about

00136 thousand times its mass of water by swelling

00137 save. This layer is correspondingly elastic

00138 edged to the associated with the water intake

00139 to compensate for volume increase. 00141 In an advantageous development of the invention

00142 provided that the film forming the air barrier

00143 is impermeable to water, but

00144 sig. It is particularly envisaged that this

00145 film has an Sd value of 0.01 m. The same

00146 Sd value can be used on the external roofing membrane

00147 zen. The combination is optimal when

00148 span and air barrier the same water vapor diffusion

00149 have ability. 00150

00151 The design has an independent meaning

00152 the air barrier in the form of a breathable film.

00153 According to the invention, this water vapor permeable film

00154 further developed so that on their insulation

00155 layer indicating side a strongly water-absorbing

00156 de layer is provided. This layer is in the

00157 location, possibly on the pointing to the insulation

00158 side of the air barrier condensing water between

00159 save. Such water condensation can

00160 summer take place when the outside humidity

00161 has a value at which the dew point of the outside air

00162 is above room temperature. Such relationships

00163 nisse can be especially in air-conditioned rooms in

00164 summer occur. The room temperature and thus the

00165 temperature at the air barrier can be the dew point

Fall below 00166, so that at the air lock on their

00167 insulation side have a water condensation

00168 occurs. The water condensed there is in the swellable

00169 ren absorption layer buffered until itself

00170 the temperature or humidity conditions so

Set 00171 that the air in the insulation is a

00172 has moisture that is significantly below the saturation

00173 lies. Then that can be in the swellable

00174 absorber material cached water again

Evaporate 00175 and through the insulation or the underlay 00176 escape into the ambient air and also be released into the interior air. 00178 00179 Another component of the invention, which also has 00180 independent meaning, is a roof formed with 00181 insulation or an air barrier of the aforementioned type 00182. 00183 00184 An embodiment of both the 00185 insulation according to the invention, as well as the roof underlay 00186 according to the invention or the air brake according to the invention will be explained in detail below using the attached drawings. The figures show: 00189 00190 FIG. 1 a laying example of the 00191 insulation according to the invention, 00192 00193 FIG. 2 a schematic illustration of the insulation according to the invention with extended protrusions, 00195 00196 FIG. 3 a schematic representation according to FIG. 2 with 00197 partially extended protrusions, 00198 00199 FIG. 4 the insulation according to the invention rolled up, 00200 00201 FIG. 5 the state of the insulation according to the invention after 00202 rolling out, 00203 00204 FIG. 6 an enlarged cross section through the insulation according to the invention, 00206 00207 FIG. 7 a schematic representation of the structure of 00208 roofing membrane according to the invention, 00209 00210 FIG. 8 a further embodiment of a roof

00211 cable car and 00212

00213 Fig. 9 shows another embodiment of a

00214 air / vapor barrier. 00215

00216 FIG. 1 shows a rafters 5 partially broken open

00217 existing, not yet covered roof, on which

00218 the rafters gaps have already been insulated

00219 hen. The insulation has an insulation layer 2, which

00220 before it is open to diffusion and, for example, from mineral wool

00221 exists. The thickness of the insulation corresponds approximately to that

00222 thickness of the rafters 5. On their outward facing

00223 side is the insulation 2 with a roofing membrane 4

00224 laminated. The roof sarking membrane 4 has edges

00225 protrusions 4 ', 4 *', which by means of staplers or the like

00226 chen on the rafters narrow sides 5 ^{1 are} attached.

00227 The protrusions 4 ', 4' 'in adjacent rafters intermediate

00228 cleared insulations overlap and are

00229 connected to one another via a sealing adhesive layer 6

00230 den. 00231

00232 On the roof membrane 4 opposite

00233 side is the insulation 2 with an air barrier 3 ca

00234 sheer. The air lock 3 also has edges

00235 supernatants 3 ¹ , 3 ¹¹ , which on the narrow sides 5 ^{1 1}

00236 rafters 5 come to rest. There these protrusions

00237 de 3 ', 3 ¹ ' can also be attached by means of staplers.

00238 It is also provided here that a

00239 total sealing surface the supernatants of neighboring

00240 air barrier sheets 3 are glued together. 00241

00242 The insulation according to the invention is shown in FIG. 4

00243 delivered roll form, both the

00244 protrusions 3 ', 3 ¹ ' of the air brake 3 and the protrusions 00245 stands 4 ', 4 ^{11 of} the roofing membrane 4 by 180 °

00246 are folded so that they are on with their back

00247 of the web. For installing the roofing membrane in

00248 the rafters spaces of the erected roof truss

00249 the role shown in Fig. 4 is unrolled and the

00250 in Fig. 6 still folded protrusions 4 ', 4 ¹¹ of

00251 roof sarking membrane 4 unfolded. Then in the

00252 rafter spacing insulation is there from

00253 attached to the outside in that the unfolded cover

00254 stands 4 ', 4 ¹¹ (see FIG. 3) stapled onto the rafters

00255. Gluing is also provided. The

00256 is the result of assembly that has been advanced until then

00257 a waterproof and thermally insulated roof, which still

00258 is not covered, and the air barrier without

00259 essential material and equipment transport

00260 under the roof in the final overlapped position

00261 can be brought. 00262

00263 As can be seen from Fig. 6, the air barrier

00264 3 on its side facing the thermal insulation

00265 super absorber coating 12. This super absorber coating

00266 stratification is chosen so that the annual average

00267 through the breathable layer 13 of the air brake 3

00268 diffusing amount of water vapor can be stored there

00269 can be used to

00270 gungen by the insulation 2 and the diffusion open

00271 roofing membrane to be transported outside. 00272

00273 The air brake preferably has a diffusion resistance

00274 was an air equivalent of 0.01 m. 00275

00276 A similar diffusion resistance (Sd value 0.01 m)

00277 has the roof membrane 4. This forms additional

00278 borrowed one on its side facing the insulation layer

00279 surface 11 promoting heat reflection. 00280 The heat reflection demanding surface can

00281 according to a preferred embodiment in the embodiment 00282 also on the outside, that is to say in the

00283 side of the roof covering facing

00284 roof membrane. This has the advantage that in summer 00285 the

00286 radiated heat reflected on the reflective layer

00287 will. 00288

00289 The layer structure of the roofing membrane 4 is in

00290 Fig. 7 shown. Outward facing, the

00291 roofing membrane a fleece 14 made of polyethylene, poly

00292 propylene or the like, which water and water

00293 is vapor permeable. This fleece is UV stabilized.

00294 A membrane 15 connects to the fleece 14, which

00295 before it is impermeable to water, but

00296 sig. The membrane can be made from a skin

00297 pylene micro-spunbond can be formed (meltblown

00298 fleece). A stabilizer is attached to this membrane 15.

00299 activity grid 16, which is embedded in a wide

00300 res fleece 17. Located on the insulation-side fleece 17

00301 a layer of a super absorber 18, which

00302 as well as the superabsorber 12 is capable of, for example

00303 a thousand times its dry volume of water

00304 save. The layer is only a few micrometers,

00305 so that the storage capacity is about 1 - 2 1 per m ²

00306 lies. The air has the same storage capacity

00307 lock 3. 00308

00309 Studies have shown that such a

00310 insulation not only extremely simple

00311 assembly is possible. Rather, this solution enables

00312 also one up to ten times larger diffusion flow

00313 density compared to the insulation systems of the prior art

00314 technology. The diffusion open heats up alone 00315 thermal insulation due to the reflective layer only by 2 °,

00316 the diffusion current density increases by approx. 17%. 00317

00318 In Fig. 8 is a special embodiment

00319 a roofing membrane in a schematic representation

00320 of the layer structure shown. The one pointing outwards

00321 layer 20 corresponds to a diffusion-open and

00322 opaque diffusion film. This is in

00323 insulation first with an adhesive layer 19th

00324 occupied. This adhesive layer 19 consists of adhesive powder

00325 or adhesive fibers. They are resilient. On

00326 this adhesive layer 19 is a super absorber 18

00327 brings. This in turn includes a spunbond 21

00328. This spunbonded nonwoven 21 is hydrophilized. Insulation

00329 sided this spunbond is then with a metal

00330 vaporization 11 provided. In the embodiment

00331 additionally a stabilizing grid 16 is shown

00332 net, which is between the hydrophilized spunbond

00333 21 and the metal vaporization 11 is. 00334

00335 Fig. 9 shows a special embodiment

00336 an air barrier or a vapor barrier which

00337 lies below the insulation. Towards the insulation

00338 pointing, this air barrier has a spunbond 22,

00339 which is hydrophilized. On this spunbond 22

00340 is followed by a super absorber 18, on which an adhesive

00341 layer 19 follows, which is used as an adhesive powder or

00342 can be formed nonwoven. Below the adhesive fleece

00343 19 is the actual air or vapor barrier

00344 in the form of a film, in particular open to diffusion.

00345 This foil is covered with a metal vapor

00346 fung 11 provided. Here too is in the embodiment

00347 an additional stabilizing grid 16 is shown,

00348 which carrier of the metallization 11. 00349 00350 The water is stored by the super absorber

00351 is preferably made by gel formation. Such superab

00352 sorbers can e.g. B. Powder based on highly expanded

00353 end, gel-forming, crosslinking acrylic acid polymers

00354. A known field of application of such super

00355 sorber are baby diapers. 00356

00357 The advantage of these superabsorbents lies on the one hand in

00358 the enormously high absorption capacity of pure, electro- 00359 lyt-free water and its property, moisture

00360 from the atmosphere under sources and record them

00361 to a drier atmosphere while shrinking the

00362 Gels to deliver again. The reversible swelling and

00363 De-swelling takes place, for example, by the networked,

00364 Carboxyl-bearing polymers in the dry state

00365 are knotted and when entering aqueous liquids

00366 solvate and dissociate. The polymer ball

00367 opens up and is accumulated by accumulating negative

00368 enabled along the polymer chains to

00369 more liquid to take up. A gel forms in

00370 which the water is firmly bound by secondary valences. 00371

00372 The coating of the underlay can, for example, how

00373 follows: Acrylic acid powder is mixed with up to 50%

00374 low melting powder polymers, e.g. B. EFA, with

00375 a melting point of about 80 ° C and mixed

00376 of a powder spreader on the underlay depending on

00377 request sprinkled and then by infrared

00378 radiation or passing through a flat bed laminate

00379 melted. Furthermore, the surface of the

00380 underlay with a powder spreader

00381 low melting polymer powder z. B. LDPE in one

00382 order of 5 - 10 g / m ^{2 can be} sprinkled. After that

00383 the order is placed with another powder spreader

00384 the required amount of the absorber. 00385 The powders are then in a flat bed laminating machine

00386 or in an infrared system

00387 melted. 00388

00389 All disclosed features are essential to the invention.

00390 The disclosure of the application is hereby also

00391 disclosure content of the associated / attached priori

00392 documents (copy of the pre-registration)

00393 was included, also for the purpose of characteristics of this

00394 documents in claims of the present application with

00395 record. 00396

Claims

00397 REQUIREMENTS 0039800399 1. Insulation that can be inserted between rafters in the form 00400 of a roll-up, with an air-blocking film that is overlapped on both sides-00401 the air-blocking film 00402 rafter thickness, characterized by a 00403 on the side facing away from the air barrier (3), on the 00404 insulation layer waterproof but water-00405 vapor-permeable film (roofing membrane 4) with 00406 edge overhang on both sides (41, 4 ''). 0040700408 2. Insulation according to claim 1 or in particular according thereto, 00409 characterized in that the protrusion (4 ', 4 *') 00410 corresponds approximately to a rafter narrow side width. 0041100412 3. Insulation according to one or more of the preceding00413 claims or in particular according thereto, characterized00414 by an adhesive layer (6) applied to the film section which forms the protrusion. 0041600417 4. Insulation according to one or more of the preceding 00418 claims or in particular according thereto, characterized in that 00419 net that the roofing membrane (6) on its side facing the insulation 00420 layer is equipped to promote heat reflection (11) 00421. 0042200423 5. Insulation according to one or more of the preceding 00424 claims or in particular according thereto, characterized in that the air barrier (3) has a highly water-absorbing layer (12). 0042700428 6. Insulation according to one or more of the preceding 00429 claims or in particular according thereto, characterized in that the air barrier (3) is permeable to water vapor (Sd00431 = 0.01 m). 00432 7. Insulation according to one or more of the preceding00433 claims or in particular according thereto, characterized in that the air barrier (3) and the roofing membrane 00435 (4) are approximately equally permeable to water vapor 00436. 0043700438 8. Insulation according to one or more of the preceding 00439 claims or in particular according thereto, characterized in that 00440 net that the strongly water-vapor-absorbing layer 00441 (12) sits on the side of the 00442 air barrier (3) facing the insulation layer (2). 0044300444 9. Insulation according to one or more of the preceding 00445 claims or in particular according thereto, characterized in that the roofing membrane (4) has a membrane (15) 00447 made of skin-torn polypropylene micro-spunbond. 0044800449 10. Insulation according to one or more of the preceding 00450 claims or in particular according thereto, characterized in that 00451 net that the roofing underlay (4) is vapor-coated with a warmer metal 00452 reflecting. 0045300454 11. Insulation according to one or more of the preceding 00455 claims or in particular according thereto, characterized in that the insulation is rolled up in an insulation layer-compressed manner with protrusions (3 ', 3'1, 4', 4- ') folded in-00457. 0045800459 12. Insulation according to one or more of the preceding 00460 claims or in particular according thereto, characterized in that the roofing membrane (4) has a strongly water-absorbing layer (18). 0046300464 13. Insulation according to one or more of the preceding 00465 claims or in particular according thereto, characterized in that the roof sarking membrane (6) is coated on its side facing outside 00467 to promote heat reflection and 00468. 0046900470 14. Inside the roof, which can be attached to a water vapor-permeable 00471 insulation layer, an air barrier made of a water-00472 vapor-permeable film (Sd approximately 0.01 m), characterized 00473 in that the film on its side facing the insulation layer 00474 is highly water-absorbent 00475 and in particular has a water-absorbing layer 0047. 0047700478 15. Thermally insulated roof with insulation and / or00479 an air barrier according to one of the preceding claims-00480 before. CHANGED CLAIMS [received at the International Bureau on September 13, 1999 (September 13, 1999); original claim 1 replaced by new claim 1; all other claims unchanged (1 page)]

1. Insulation that can be inserted between rafters from the outside before covering the roof, in the form of a roll-up, open-pored insulation layer (2) in rafters thickness and with laminated on its inward-facing side with an overlapping, air-blocking film (3) one on its outward-facing side on the insulation layer (2) on laminated, waterproof but water vapor permeable film (4) also with edge overhang (4 -, 4 ' ^■ ), the edge overhangs (4', 4 '') in adjacent rafters - Spaces each with insulation protrusions (3 ¹ , 3 ¹ ') of the air-blocking film (3) folded inwards onto the back of the air-blocking film (3) can be connected to one another in an overlapping manner by means of a sealing adhesive layer (6).