CA1113831A - Heat-insulated plastic hall - Google Patents
Heat-insulated plastic hallInfo
- Publication number
- CA1113831A CA1113831A CA293,907A CA293907A CA1113831A CA 1113831 A CA1113831 A CA 1113831A CA 293907 A CA293907 A CA 293907A CA 1113831 A CA1113831 A CA 1113831A
- Authority
- CA
- Canada
- Prior art keywords
- sheets
- synthetic plastic
- core member
- pair
- bonded
- 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.)
- Expired
Links
Landscapes
- Laminated Bodies (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An air or frame supported hall made out of synthetic plastic sheeting, especially a hall having an outer heat insula-tion consisting of a number of adjacent mats covering substan-tially the entire hall, each mat consisting of a core of soft cellular synthetic plastic, each flat side of said core being laminated with an unreinforced soft flexible plastic sheet.
An air or frame supported hall made out of synthetic plastic sheeting, especially a hall having an outer heat insula-tion consisting of a number of adjacent mats covering substan-tially the entire hall, each mat consisting of a core of soft cellular synthetic plastic, each flat side of said core being laminated with an unreinforced soft flexible plastic sheet.
Description
~11383~
The present invention relates to an air or frame-sup-ported hall made out of synthetic sheeting, especially a hall comprising an elongated portion having arched section. The in-" vention also relates to a heat-insulating material for heat in-sulating such a hall.
Synthetic plastic halls are used during th~ winter as heated sports, meeting and storage premises. Due to the poor heat-insulation of the synthetic plastic sheeting, heat energy ; consumption is very great and leads to great costs.
In order to reduce the great heat energy costs, vari-ous attempts to heat-insulate the halls have been made. For example, a liquid plastic foam has been ~prayed onto the out-side of the hall and been allowed to harden to a rigid layer of cellular plastic. One disadvantage of this technique ha~ been that the hall has thereafter not been able to be moved without ; destroying the insulation. Another disadvantage i9 that the in-sulation is easily damaged during storm~.
Another known technique has con~isted of attaching a second sheeting to several points on the inside o~ the hall 80 that the hall has become double-walled. In ~aid technique, the inner sheeting has, for example, been attached to the hall in such a manner that the entire wall has been divided up into a number of compartments which, in some cases, have been able to be inflated with air of superatmo~pheric pressure so as to ..
achieve the greatest possible thicknes3 of the hall wall. In other instances, the two plastic sheetings have been provided with mutual spacers in the form of strips or wires. However, in these cases, the achieved heat-insulating effect has been , ~, , relatively slight and insufficient.
The purpose of the present invention is to obtain ~, insulated halls of the kind mentioned above by means of using heat insulation in the form of an easily assemblable and dis-- B
l3Wi assemblable system while achieving-economical heating. Accord-ing to the invention, this is achieved in halls of the kind mentioned above by means of their being provided with a heat insulation con~isting of a number of adjacent lengths of approx.
5-50 mm thick and approx. 1-2 m wide cores of soft cellular plastic, said lengths essentially covering the entire hall.
The flat sides of the cores are laminated with an unreinforced, soft, flexible synthetic plastic sheet material. Each such length is preferably provided with two linings or edge strips of reinforced synthetic plastic sheet material, said edge strips cove~ing the longitudinal edges of the lengths and being glued or welded a distance in on the unreinforced synthetic plastic sheet material.
According to another embodiment of the invention, the lengths are designed so that the unreinforced sheets extend a distance beyond the edges of the cellular plastic and form groove~ through which rope, preferably of plastic, runs. The ends of the rope are tied to the anchoring of the hall.
The length~ are arranged on the hall ~n a 9ufficient number 80 that essentially the entire surface of the plastic sheeting is covered. If the hall has specially-designed end sections in the form of, for example, caps or the like, the lengths can also be arranged over ~aid sections in a manner so that said end section are also covered.
Anchorage of the lengths i8 effected on the ground level at attachment points arranged around the hall. If anchor-ings or braces are lacking, they can be arranged by means of, for example, ground anchoring means, concrete blocks, sandbags, wooden frames, steel cable or the like. According to a further embodiment, the ends of the lengths can have reinforcement~ in the form of, for example, a reinforced plastic sheeting glued or welded about the length. Eyelets, for example, can be mount-
The present invention relates to an air or frame-sup-ported hall made out of synthetic sheeting, especially a hall comprising an elongated portion having arched section. The in-" vention also relates to a heat-insulating material for heat in-sulating such a hall.
Synthetic plastic halls are used during th~ winter as heated sports, meeting and storage premises. Due to the poor heat-insulation of the synthetic plastic sheeting, heat energy ; consumption is very great and leads to great costs.
In order to reduce the great heat energy costs, vari-ous attempts to heat-insulate the halls have been made. For example, a liquid plastic foam has been ~prayed onto the out-side of the hall and been allowed to harden to a rigid layer of cellular plastic. One disadvantage of this technique ha~ been that the hall has thereafter not been able to be moved without ; destroying the insulation. Another disadvantage i9 that the in-sulation is easily damaged during storm~.
Another known technique has con~isted of attaching a second sheeting to several points on the inside o~ the hall 80 that the hall has become double-walled. In ~aid technique, the inner sheeting has, for example, been attached to the hall in such a manner that the entire wall has been divided up into a number of compartments which, in some cases, have been able to be inflated with air of superatmo~pheric pressure so as to ..
achieve the greatest possible thicknes3 of the hall wall. In other instances, the two plastic sheetings have been provided with mutual spacers in the form of strips or wires. However, in these cases, the achieved heat-insulating effect has been , ~, , relatively slight and insufficient.
The purpose of the present invention is to obtain ~, insulated halls of the kind mentioned above by means of using heat insulation in the form of an easily assemblable and dis-- B
l3Wi assemblable system while achieving-economical heating. Accord-ing to the invention, this is achieved in halls of the kind mentioned above by means of their being provided with a heat insulation con~isting of a number of adjacent lengths of approx.
5-50 mm thick and approx. 1-2 m wide cores of soft cellular plastic, said lengths essentially covering the entire hall.
The flat sides of the cores are laminated with an unreinforced, soft, flexible synthetic plastic sheet material. Each such length is preferably provided with two linings or edge strips of reinforced synthetic plastic sheet material, said edge strips cove~ing the longitudinal edges of the lengths and being glued or welded a distance in on the unreinforced synthetic plastic sheet material.
According to another embodiment of the invention, the lengths are designed so that the unreinforced sheets extend a distance beyond the edges of the cellular plastic and form groove~ through which rope, preferably of plastic, runs. The ends of the rope are tied to the anchoring of the hall.
The length~ are arranged on the hall ~n a 9ufficient number 80 that essentially the entire surface of the plastic sheeting is covered. If the hall has specially-designed end sections in the form of, for example, caps or the like, the lengths can also be arranged over ~aid sections in a manner so that said end section are also covered.
Anchorage of the lengths i8 effected on the ground level at attachment points arranged around the hall. If anchor-ings or braces are lacking, they can be arranged by means of, for example, ground anchoring means, concrete blocks, sandbags, wooden frames, steel cable or the like. According to a further embodiment, the ends of the lengths can have reinforcement~ in the form of, for example, a reinforced plastic sheeting glued or welded about the length. Eyelets, for example, can be mount-
-2-,~3 ' ~ ,' ~ -~13831 ed onto said reinforced sections for attachment of the rope, by means of which the length can be tied onto the anchoring of the hall. The longitudinal linings or end strips can also extend a distance beyond the short ends of the lengths. These edge strip extensions can constitute attachment means for rope or the like or be tied directly to the anchoring of the hall.
The soft cellular plastic material used in th`e lengths can be of any optional known kind, for instance, the kind con-sisting of expanded polyurethane, polystyrene, polyethylene, polyester, epoxy, vinyl, rubber, latex or other synthetic resins.
The density can lie between approx, 15 - 85 kg/m3, preferably between 15 - 35 kg/m3. The thickness of the cellular plastic core can lie between 5 - 50 mm, preferably between 8 - 25mm, most suitably between 8 - 12mm.
The plastic foil material used for lamination of the cellular pla~tic core is of the unreinforced, soft, flexible type of polyvinyl chloride, polyethylene, polyurethane or another known kind of flexible plastic sheet material. The thickness of the sheet should lie between 0.1 - 0.6 mm, If desired, a foil which i8 unreinforced and thinner than the foil which is to cover the upper side of the cellular plastic core and be sub-jected directly to weather and wind can be arranged on the side of the cellular plastic core which shall face the plastic screening of the hall. The sheet can be coloured in a known way, preferably in light-grey, dark green, yellow, brown and black colours.
The pla~tic sheet can be laminated to the cellular pla~tic core by means of using an adhesive layer of a suitable laminating glue, for example a PVC urethane glue. The non-ther-moplastic cellular plastic fastens therewith so effectively to ~; the sheet that it will function as reinforcement for the plastic sheet, and it is thereby no longer necessary to use a woven '''' . .
T..~ ~
~ C-~j _3_ 1~13831 fabric-reinforced plastic sheeting for surface covering of the cellular plastic core. However, the plastic sheet can.,also be ~;
laminated to the cellular plastic core'in another manner,~'.for , , example by means of welding in a known manner, flame laminà~ion or the like. Of utmost importance is that adhesion between the ~, sheet and the cellular plastic be so strong that the cellular .
plastic provides the same strength results as a woven fabric-reinforcement would have provided the plastic with. This en-,' tails that the sheet cannot be loosened from the cellular plas-.; 10 tic without ,t"he,cell~u,lar p,lastic or the sheet being torn apart, ' ' that is, they shall not be able to be separated in.the seam '.~ .:
itself. :' ;
' By means of the laminated cellular plastic core pro- '.
' vided with edge strips according to the invention, it is possi-ble to replace more expensive woven plastic (plastic-impregnated canvas) as laminating material. Furthermore, the life-time of the hall increases by means of the underlying plastic hall sheet- ~.
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;1~ ing being protected against weather and wind. The edge strip also has a stabilizing effect and holds the construction to-gether in the event of storms.
.' In one, aspect of the present invention, .there is provided a component for use in the covering of exterior sur-faces of existing plastic sheeting of an air or frame supported ~ structure such as a hall for insulating the same to aid reten-,i~ tion of heat therein, comprising in combination: a) a gener-,~ ally rectangular soft cellular synthetic plastic core member ~' having a pair of opposed generally flat parallel top and bot-,( tom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about '' 30 2 meters: b) a pair of first sheets of unreinforced soft . .
flexible synthetic plastic material bonded to said top and bottom core surfaces: and c) pairs of second and third 1S~1383~
synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, res-pectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longi-tudinal edges of said core member to define rope-receiving passages extending the length of the component.
. In a further aspect of the present invention, there is provided an insulating covering for a building, said building comprising an air or frame supported structure made of synthetic plastic sheeting, said covering comprising a plurality of heat insulating components each including:
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters; b) a pair of first sheets of unreinforced soft flexible synthetic plastic material bonded to said top and bottom core surfaces; and c) pairs of second and third synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, res-pectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longi-tudinal edges of said core member to define rope-receiving . pass~ges extending the length of the component.
. In a further aspect of the present invention, .~ there is provided an insulating covering for a building, -;
said building comprising an air or frame supported structure .~ made of synthetic plastic sheeting, said covering comprising a plurality of heat insulating components each including:
: 30 a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness : :
: -4a-. . , . :
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of from about 5 to about 50 mm and a width of from about 1 to about 2 meters; b) a pair of unreinforced soft flexible : .
synthetic plastic sheets bonded to the top and bottom sur- ' faces of said core member, c) a pair of longitudinal edge :
reinforcing strips formed of reinforced synthetic plastic ~ , sheet material, said edge reinforcing strips being bonded : ~ :
to the external surfaces of the corresponding edge portion '~ ' of said sheets; and d) a pair of end edge reinforcing strips :
formed of reinforced synthetic plastic sheet material, said end edge reinforcing strips being,folded across the end edges of the component and being bonded to the external surfaces of the corresponding edge portions of said first sheets; and further including attachment means for connecting ropes with the four corners of the component.
., .
: The invention is described in more detail below ': in connection with the enclosed drawings and some examples ' ;` of embodiments.
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~i3831 , Figure 1 is a plan view of an insulation component formed in accordance with the present invention;
Figure 2 is a sectional view taken along line 2-2 of Figure 1:
Figure 3 i8 a plan view of a record embodiment of the invention:
Figure 4 is a Rectional view taken along line` 4-4 of Figure 3, Figure 5 is a plan view of another embodiment of the invention, and ;
~ Figures 6 and 7 are plan and side elevation views, respectively, of a building structure formed from the components of Figure 1.
, . .
Referring first more particularly to Figures 1 and 2, the insulation component 1 includes a cellular synthetic plastic :~, core has been provided with reference numeral 2 and the synthetic plastic qheet la~inated thereto with reference numeral 3. The plastic rope has reference numeral 4 and a glue or welding seam is indicated at reference numeral 5. In Figure 2, one can see how the bottom side of the cellular plastic core has first been covered with a plastic ~heet. The upper side has thereafter :., been covered with another similar plastic sheet which has been drawn a slight distance beyond the edge of the actual core 80 , as to provide space for the rope. It has thereafter been glued ... .
sl to the synthetic pla~tic sheet on the bottom ~ide of the cellular synthetic plastic core. Figure 3 shows an embodiment ~n which the cellular synthetic plastic core has been laminated with un-reinforced plastic sheet and in which ~trips 6 and 7 of rein- -~
forced plastic sheet have been welded around the side edges ', 30 and end edge~ of the cellular plastic core. Eyelets 8 for the '`~ attachment of rope 9 are arranged in the corners. In Figure 4 ~;
the welding of the reinforced Rheet to the unreinforced sheet :-, (, r'~
1~13831 ~; ~
is shown at 5.
Figure 5 shows another embodiment in which the edge strips have been cut a distance beyond the ~hort ends of the length. Rope 9 is attached to the edge ~trips 6 in a ~uitable manner.
Referring now to Figures 6 and 7 the synthetic plastic hall is formed by lengths of the components 1 of Figure 1 which lengths are anchored at the bottom of the hall by means of rope.
The lengths covering the end sections are anchored to the lengths in the opposite end section by means of rope which runs under the lateral lengths. In Figure 6 one can see that only the corner portions of the end sections are not covered by lengths.
It is, however, possible to cu~tom-make special lengths for these parts as well.
Exam~le 1 ! A cold-resistant, W-stabilized, self-extingui~hing soft PVC sheet of a thickness of 0.30 mm was laminated to both sides of a 12 mm thick and 135 mm wide web of polyurethane cellular plastic having a density of 28 kg/m3 ln the manner . .
illustrated in Figure 1. Lamination was carried out with a . .
PVC-urethane glue (adhesive layer). The cellular plastic fa~tens thereto so effectively that it will function as reinforcement for the PVC sheet. ~his made the u~e of woven fabric-reinforced PVC sheeting as surface covering of the polyurethane cellular plastic core unnecessary.
All of the edges of the lengths were reinforced with 8 mm polypropylene line. Said line was hemmed in by mean~ of heat gluing in the excess edge strip of PVC sheet.
24 similar lengths, 48 meters long and manufactured ~ , .
according to the above, were used for heat in~ulation of a plastic hall provided with a sheeting having a thermal conduct-ivity (A-value) of 0.025. If one were to overlook the insigni-:
.. . . .
.
~ :
. :
ficant improvement of the heat transfer coefficient ~k-value) which the glued foils provided, the length as a whole had a k-value of 0.025 1 = 2 08 2kcal/m2, h, C.
When the lengths were laid onto the hall, whose sheeting had a k-value = 6, the covered part of the hall had a k-value of 1/2 + 1/6 1-5-The k-value for the covered part of the hàll had, thu~, been improved by a factor of 4 (from 6 to 1.5) in relation to the uncovered portion of the hall.
Exam~le 2 In this example, a 25 mm thick sheet of flame-proofed polyurethane foam having a density of 28 kg/m3 was used as a cellular plastic core. The out~ide of the same was glued in the manner indicated in Figure 3 having a 0.20 mm thick, soft PVC sheet on the bottom side and a 0.40 mm thick, soft PVC sheet ~ ~ -;~ on the upper side. ~he thick sheet overlapped the thinner sheet in the seam 5. The rope in thi~ case was 12 mm thick.
The lengths thusly obtained were used for heat insula-tion in the same manner as in example 1. However, the length~
were allowed to overlap each other within the area of the ropes.
An improvement of heat insulation of the ~ame magnitude as in example 1 was achieved.
Example 3 Both of the flat surface~ of a 25 mm thick and 1.5 m.
. :
wide sheet of flame-proofed polyurethane foam having a density of 28 kg/m were flame laminated with a 0.25 mm thick PVC sheet.
The surface of the PVC-sheet which abuts the foamed plastic core had previously been ~aminated with a thin fibre sheet of cellu-lo~e fibre~, glued with an approximately 20% acrylate re~in com-patible with PVC.
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83i A 12 cm wide strip of woven fabric-reinforced PVC-sheet was folded around the edges of the finished laminate and welded onto the PVC-sheet of the laminate as revealed in Figure 4. The woven fabric in the reinforced PVC-foil was of the Panama type and consisted polyester yarn. The strip had a ten-sile strength of approx. 1000 kp.
A similar strip was welded around the end edges of said mat in the same manner as shown in Figure 3 so that the entire foamed plastic core was enclosed in reinforced or unre-inforced PVC-sheet. Eyelets were arranged in the corners for the attachment of the ropes with which the mat was tied to the anchoring of the hall.
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The soft cellular plastic material used in th`e lengths can be of any optional known kind, for instance, the kind con-sisting of expanded polyurethane, polystyrene, polyethylene, polyester, epoxy, vinyl, rubber, latex or other synthetic resins.
The density can lie between approx, 15 - 85 kg/m3, preferably between 15 - 35 kg/m3. The thickness of the cellular plastic core can lie between 5 - 50 mm, preferably between 8 - 25mm, most suitably between 8 - 12mm.
The plastic foil material used for lamination of the cellular pla~tic core is of the unreinforced, soft, flexible type of polyvinyl chloride, polyethylene, polyurethane or another known kind of flexible plastic sheet material. The thickness of the sheet should lie between 0.1 - 0.6 mm, If desired, a foil which i8 unreinforced and thinner than the foil which is to cover the upper side of the cellular plastic core and be sub-jected directly to weather and wind can be arranged on the side of the cellular plastic core which shall face the plastic screening of the hall. The sheet can be coloured in a known way, preferably in light-grey, dark green, yellow, brown and black colours.
The pla~tic sheet can be laminated to the cellular pla~tic core by means of using an adhesive layer of a suitable laminating glue, for example a PVC urethane glue. The non-ther-moplastic cellular plastic fastens therewith so effectively to ~; the sheet that it will function as reinforcement for the plastic sheet, and it is thereby no longer necessary to use a woven '''' . .
T..~ ~
~ C-~j _3_ 1~13831 fabric-reinforced plastic sheeting for surface covering of the cellular plastic core. However, the plastic sheet can.,also be ~;
laminated to the cellular plastic core'in another manner,~'.for , , example by means of welding in a known manner, flame laminà~ion or the like. Of utmost importance is that adhesion between the ~, sheet and the cellular plastic be so strong that the cellular .
plastic provides the same strength results as a woven fabric-reinforcement would have provided the plastic with. This en-,' tails that the sheet cannot be loosened from the cellular plas-.; 10 tic without ,t"he,cell~u,lar p,lastic or the sheet being torn apart, ' ' that is, they shall not be able to be separated in.the seam '.~ .:
itself. :' ;
' By means of the laminated cellular plastic core pro- '.
' vided with edge strips according to the invention, it is possi-ble to replace more expensive woven plastic (plastic-impregnated canvas) as laminating material. Furthermore, the life-time of the hall increases by means of the underlying plastic hall sheet- ~.
i:'l .
;1~ ing being protected against weather and wind. The edge strip also has a stabilizing effect and holds the construction to-gether in the event of storms.
.' In one, aspect of the present invention, .there is provided a component for use in the covering of exterior sur-faces of existing plastic sheeting of an air or frame supported ~ structure such as a hall for insulating the same to aid reten-,i~ tion of heat therein, comprising in combination: a) a gener-,~ ally rectangular soft cellular synthetic plastic core member ~' having a pair of opposed generally flat parallel top and bot-,( tom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about '' 30 2 meters: b) a pair of first sheets of unreinforced soft . .
flexible synthetic plastic material bonded to said top and bottom core surfaces: and c) pairs of second and third 1S~1383~
synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, res-pectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longi-tudinal edges of said core member to define rope-receiving passages extending the length of the component.
. In a further aspect of the present invention, there is provided an insulating covering for a building, said building comprising an air or frame supported structure made of synthetic plastic sheeting, said covering comprising a plurality of heat insulating components each including:
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters; b) a pair of first sheets of unreinforced soft flexible synthetic plastic material bonded to said top and bottom core surfaces; and c) pairs of second and third synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, res-pectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longi-tudinal edges of said core member to define rope-receiving . pass~ges extending the length of the component.
. In a further aspect of the present invention, .~ there is provided an insulating covering for a building, -;
said building comprising an air or frame supported structure .~ made of synthetic plastic sheeting, said covering comprising a plurality of heat insulating components each including:
: 30 a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness : :
: -4a-. . , . :
~i3~3i .
of from about 5 to about 50 mm and a width of from about 1 to about 2 meters; b) a pair of unreinforced soft flexible : .
synthetic plastic sheets bonded to the top and bottom sur- ' faces of said core member, c) a pair of longitudinal edge :
reinforcing strips formed of reinforced synthetic plastic ~ , sheet material, said edge reinforcing strips being bonded : ~ :
to the external surfaces of the corresponding edge portion '~ ' of said sheets; and d) a pair of end edge reinforcing strips :
formed of reinforced synthetic plastic sheet material, said end edge reinforcing strips being,folded across the end edges of the component and being bonded to the external surfaces of the corresponding edge portions of said first sheets; and further including attachment means for connecting ropes with the four corners of the component.
., .
: The invention is described in more detail below ': in connection with the enclosed drawings and some examples ' ;` of embodiments.
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.,.,:~
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~i3831 , Figure 1 is a plan view of an insulation component formed in accordance with the present invention;
Figure 2 is a sectional view taken along line 2-2 of Figure 1:
Figure 3 i8 a plan view of a record embodiment of the invention:
Figure 4 is a Rectional view taken along line` 4-4 of Figure 3, Figure 5 is a plan view of another embodiment of the invention, and ;
~ Figures 6 and 7 are plan and side elevation views, respectively, of a building structure formed from the components of Figure 1.
, . .
Referring first more particularly to Figures 1 and 2, the insulation component 1 includes a cellular synthetic plastic :~, core has been provided with reference numeral 2 and the synthetic plastic qheet la~inated thereto with reference numeral 3. The plastic rope has reference numeral 4 and a glue or welding seam is indicated at reference numeral 5. In Figure 2, one can see how the bottom side of the cellular plastic core has first been covered with a plastic ~heet. The upper side has thereafter :., been covered with another similar plastic sheet which has been drawn a slight distance beyond the edge of the actual core 80 , as to provide space for the rope. It has thereafter been glued ... .
sl to the synthetic pla~tic sheet on the bottom ~ide of the cellular synthetic plastic core. Figure 3 shows an embodiment ~n which the cellular synthetic plastic core has been laminated with un-reinforced plastic sheet and in which ~trips 6 and 7 of rein- -~
forced plastic sheet have been welded around the side edges ', 30 and end edge~ of the cellular plastic core. Eyelets 8 for the '`~ attachment of rope 9 are arranged in the corners. In Figure 4 ~;
the welding of the reinforced Rheet to the unreinforced sheet :-, (, r'~
1~13831 ~; ~
is shown at 5.
Figure 5 shows another embodiment in which the edge strips have been cut a distance beyond the ~hort ends of the length. Rope 9 is attached to the edge ~trips 6 in a ~uitable manner.
Referring now to Figures 6 and 7 the synthetic plastic hall is formed by lengths of the components 1 of Figure 1 which lengths are anchored at the bottom of the hall by means of rope.
The lengths covering the end sections are anchored to the lengths in the opposite end section by means of rope which runs under the lateral lengths. In Figure 6 one can see that only the corner portions of the end sections are not covered by lengths.
It is, however, possible to cu~tom-make special lengths for these parts as well.
Exam~le 1 ! A cold-resistant, W-stabilized, self-extingui~hing soft PVC sheet of a thickness of 0.30 mm was laminated to both sides of a 12 mm thick and 135 mm wide web of polyurethane cellular plastic having a density of 28 kg/m3 ln the manner . .
illustrated in Figure 1. Lamination was carried out with a . .
PVC-urethane glue (adhesive layer). The cellular plastic fa~tens thereto so effectively that it will function as reinforcement for the PVC sheet. ~his made the u~e of woven fabric-reinforced PVC sheeting as surface covering of the polyurethane cellular plastic core unnecessary.
All of the edges of the lengths were reinforced with 8 mm polypropylene line. Said line was hemmed in by mean~ of heat gluing in the excess edge strip of PVC sheet.
24 similar lengths, 48 meters long and manufactured ~ , .
according to the above, were used for heat in~ulation of a plastic hall provided with a sheeting having a thermal conduct-ivity (A-value) of 0.025. If one were to overlook the insigni-:
.. . . .
.
~ :
. :
ficant improvement of the heat transfer coefficient ~k-value) which the glued foils provided, the length as a whole had a k-value of 0.025 1 = 2 08 2kcal/m2, h, C.
When the lengths were laid onto the hall, whose sheeting had a k-value = 6, the covered part of the hall had a k-value of 1/2 + 1/6 1-5-The k-value for the covered part of the hàll had, thu~, been improved by a factor of 4 (from 6 to 1.5) in relation to the uncovered portion of the hall.
Exam~le 2 In this example, a 25 mm thick sheet of flame-proofed polyurethane foam having a density of 28 kg/m3 was used as a cellular plastic core. The out~ide of the same was glued in the manner indicated in Figure 3 having a 0.20 mm thick, soft PVC sheet on the bottom side and a 0.40 mm thick, soft PVC sheet ~ ~ -;~ on the upper side. ~he thick sheet overlapped the thinner sheet in the seam 5. The rope in thi~ case was 12 mm thick.
The lengths thusly obtained were used for heat insula-tion in the same manner as in example 1. However, the length~
were allowed to overlap each other within the area of the ropes.
An improvement of heat insulation of the ~ame magnitude as in example 1 was achieved.
Example 3 Both of the flat surface~ of a 25 mm thick and 1.5 m.
. :
wide sheet of flame-proofed polyurethane foam having a density of 28 kg/m were flame laminated with a 0.25 mm thick PVC sheet.
The surface of the PVC-sheet which abuts the foamed plastic core had previously been ~aminated with a thin fibre sheet of cellu-lo~e fibre~, glued with an approximately 20% acrylate re~in com-patible with PVC.
~.. . .
- ~
83i A 12 cm wide strip of woven fabric-reinforced PVC-sheet was folded around the edges of the finished laminate and welded onto the PVC-sheet of the laminate as revealed in Figure 4. The woven fabric in the reinforced PVC-foil was of the Panama type and consisted polyester yarn. The strip had a ten-sile strength of approx. 1000 kp.
A similar strip was welded around the end edges of said mat in the same manner as shown in Figure 3 so that the entire foamed plastic core was enclosed in reinforced or unre-inforced PVC-sheet. Eyelets were arranged in the corners for the attachment of the ropes with which the mat was tied to the anchoring of the hall.
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Claims (3)
1. A component for use in the covering of exterior surfaces of existing plastic sheeting of an air or frame supported structure such as a hall for insulating the same to aid retention of heat therein, comprising in combination:
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters;
b) a pair of first sheets of unreinforced soft flexible synthetic plastic material bonded to said top and bottom core surfaces; and c) pairs of second and third synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, respectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longitudinal edges of said core member to define rope-receiving passages extend-ing the length of the component.
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters;
b) a pair of first sheets of unreinforced soft flexible synthetic plastic material bonded to said top and bottom core surfaces; and c) pairs of second and third synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, respectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longitudinal edges of said core member to define rope-receiving passages extend-ing the length of the component.
2. An insulating covering for a building, said building comprising an air or frame supported structure made of synthetic plastic sheeting, said covering comprising a plurality of heat insulating components each including:
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters;
b) a pair of first sheets of unreinforced soft flexible synthetic plastic material bonded to said top and bottom core surfaces; and c) pairs of second and third synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, respectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longitudinal edges of said core member to define rope-receiving passages extending the length of the component.
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters;
b) a pair of first sheets of unreinforced soft flexible synthetic plastic material bonded to said top and bottom core surfaces; and c) pairs of second and third synthetic plastic reinforcement sheets extending around the longitudinal and end edge portions of said core member, respectively, said second and third sheets being bonded to said first sheets, said second sheets being spaced from the longitudinal edges of said core member to define rope-receiving passages extending the length of the component.
3. An insulating covering for a building, said building comprising an air or frame supported structure made of synthetic plastic sheeting, said covering comprising a plurality of heat insulating components each including:
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters:
b) a pair of unreinforced soft flexible synthetic plastic sheets bonded to the top and bottom surfaces of said core member;
c) a pair of longitudinal edge reinforcing strips formed of reinforced synthetic plastic sheet material, said edge reinforcing strips being bonded to the external sur-faces of the corresponding edge portion of said sheets; and d) a pair of end edge reinforcing strips formed of reinforced synthetic plastic sheet material, said end edge reinforcing strips being folded across the end edges of the component and being bonded to the external surfaces of the corresponding edge portions of said first sheets; and further including attachment means for connecting ropes with the four corners of the component.
a) a generally rectangular soft cellular synthetic plastic core member having a pair of opposed generally flat parallel top and bottom surfaces, said core member having a thickness of from about 5 to about 50 mm and a width of from about 1 to about 2 meters:
b) a pair of unreinforced soft flexible synthetic plastic sheets bonded to the top and bottom surfaces of said core member;
c) a pair of longitudinal edge reinforcing strips formed of reinforced synthetic plastic sheet material, said edge reinforcing strips being bonded to the external sur-faces of the corresponding edge portion of said sheets; and d) a pair of end edge reinforcing strips formed of reinforced synthetic plastic sheet material, said end edge reinforcing strips being folded across the end edges of the component and being bonded to the external surfaces of the corresponding edge portions of said first sheets; and further including attachment means for connecting ropes with the four corners of the component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO773307A NO144460C (en) | 1976-12-22 | 1977-09-27 | HEAT-INSULATED PLASTIC HALL. |
| NO773307 | 1977-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1113831A true CA1113831A (en) | 1981-12-08 |
Family
ID=19883739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA293,907A Expired CA1113831A (en) | 1977-09-27 | 1977-12-23 | Heat-insulated plastic hall |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1113831A (en) |
-
1977
- 1977-12-23 CA CA293,907A patent/CA1113831A/en not_active Expired
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