JP6423989B2 - Prefab shadow box - Google Patents

Description

  The present invention relates to building equipment and, more particularly, shadow boxes for use in various building cladding systems including, but not limited to, unitized / stick system curtain walls, window walls, punch windows, other frame assemblies and rain screen assemblies. (Shadow box).

  A curtain wall is an unstructured covering on the outside of a building. Curtain walls provide a desirable appearance and are used to eliminate external environmental factors (such as rain and wind) from the building. The curtain wall applies a horizontal force, such as a wind load, to the building structural elements, but does not apply the building's vertical load (except for its own weight). Because it is unstructured, it is relatively inexpensive to complete the exterior of the building.

  A typical enclosure system, such as a curtain wall, includes a series of mullions that are vertical / transverse elements that support a transparent vision glass and an opaque spandrel area. A typical spandrel region consists of the following components: face material (aluminum, stone, glass stone, etc.), insulation, and air / steam barrier.

  Insulation and fire protection require opaque spandrel panels. In addition, other elements that are not desirable when entering view are usually hidden by an opaque panel made of the same opaque panel or other material as the spandrel. One way to hide such an element is to replace the object above the element you want to hide with opaque glass. However, this method interferes with the visual effect of the spandrel, which is a vision glass, and can have aesthetically undesirable effects.

  To give the illusion of depth, some architects design curtain walls with shadow boxes covering the elements they want to hide. A shadow box is a spandrel that has an outer surface of the vision glass and an opaque back surface that is offset (remote) by several inches from the outer surface of the vision glass. The opaque back can hide the element you want to hide and is offset by a few inches, so it can have a visual effect similar to the vision glass window in other parts of the curtain wall.

  Some shadow boxes are deliberately opened outside the building, some shadow boxes are inadvertently opened inside the building, and some are intentionally completely sealed. If it is open to the outside, dust and insects may enter the shadow box. In hot and humid weather, water drops can occur. When open to the inside, dust can be a passage formed in the inner surface (# 2) of the glass window. Even in cold weather, there is a high probability that water droplets will form in the spandrel box. When completely sealed, moisture can enter the spandrel box through defects in the inner or outer sealed portion, resulting in water droplets over time. Accumulation of dust and dirt in the spandrel box, the presence of insects and the like in the spandrel box, and the presence of water droplets in the spandrel box are all considered to be defects in the spandrel box. Releasing the installed shadow box for cleaning purposes does not provide a practical solution to dirt and moisture problems.

  Another form of shadow box uses a conventional insulated glass unit with a solid frit or a coating on the innermost surface of the glass. Such a system is designed to solve the above-mentioned visual problems of standard spandrel boxes, such as dirt, dust, insects, etc., as well as in shadow boxes that are open to the outside or inside, or in completely sealed shadow boxes. It is dealt with by visually blocking water drops. Such forms of shadow boxes do not provide the visual depth often desired by designers. In addition, such a form of shadow box cannot prevent the formation of water droplets (and also prevent a visual warning that a water droplet is formed). Such water droplets become a shadow box defect.

  A cladding system such as a curtain wall can be built on site (in this case it is called a "stick system") or as part of a unitized system such as a unitized curtain wall It is assembled into a panel at a unitized assembly plant and can be transported to the construction site. In either case, the shadow box is manufactured as part of the curtain wall panel construction. As a result, the production of curtain walls takes time. Furthermore, since shadow boxes are manufactured ad hoc (for limited purposes), it is difficult to ascertain whether the seal and tolerance are suitable for long-term construction. Although proven in ad hoc construction over decades of shadow boxes, it is difficult to achieve an effective hermetic seal for shadow boxes with such methods. In addition, if the shadow box is manufactured in the field and in a united assembly plant, dust and other impurities usually result in the shadow box and the visual effect of the shadow box is impaired.

Accordingly, there is a need for a prefabricated shadow box unit that uses a long-life seal.
Prior art document information related to the invention of this application includes the following (including documents cited in the international phase after the international filing date and documents cited when entering the country in other countries).
(Prior art documents)
(Patent Literature)
(Patent Document 1) US Pat. No. 3,968,608 Specification
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(Patent Document 16) US Patent Application Publication No. 2011/0041427
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(Patent Document 18) US Pat. No. 2,184,440
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(Patent Document 31) US Pat. No. 8,171,684 Specification
(Patent Document 32) US Patent Application Publication No. 2005/0284046
(Patent Document 33) US Patent Application Publication No. 2009/0241441
(Patent Document 34) US Patent Application Publication No. 2011/0265404
(Patent Document 35) US Patent Application Publication No. 2012/0260548
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(Non-patent literature)
(Non-Patent Document 1) SCHUCO: “Schuco Therm Panels”; 02/2004
(Non-Patent Document 2) SAINT-GOBAIN: “SLIM WALL”; 2012
(Non-Patent Document 3) MICHNO: “Analysis and Design of Spanrel and Shadowbox Panels in United Curtain Walls,” Proceedings of Glass and Performance. Enclos University, Los Angeles, CA
(Non-Patent Document 4) BOSWELL: "'Shadow Boxes'-An Architect and Cladding Designers' Search for Solutions"; Glass Processing Days; 2005

  The disadvantages of the prior art can be overcome by the present invention. The present invention, in one aspect, provides an element that covers an invisible area on a building curtain wall, but where multiple shadow boxes are located away from both the unit curtain wall assembly plant and the building. Pre-manufactured. The shadow box is pre-manufactured by sealing an inner spacer between the vision glass panel and the rear structure by a first hermetic moisture-resistant hermetic seal and a second hermetic moisture-resistant hermetic seal, Has a predetermined length such that a vision glass panel is spaced from the rear structure, the rear structure having a first insulation and a rigid arrangement disposed around the first insulation. The inner spacer is disposed along a peripheral edge of the vision glass panel and a peripheral edge of the rear structure, and holds the vision glass panel spaced apart from the rear structure. And the first hermetic seal seals the inner spacer against the vision glass panel, and the second hermetic seal connects the inner spacer to the rear structure. Is intended to seal, whereby the vision glass panel, said rear structural body, and the internal spacer defines a void that is hermetically sealed inside against. A building seal is applied around the inner spacer to adhere to the peripheral edge of the vision glass, the inner spacer, and the rear structure. The plurality of shadow boxes are then delivered to one of the selected unit curtain wall assembly plants and the building site.

  In another aspect, the invention is a curtain wall system for covering a building, the system including a framework structure configured to be secured to an exterior surface of the building. A plurality of vision glass panels are supported by the framework structure. The plurality of shadow boxes are pre-manufactured before being delivered to both the unit curtain wall assembly plant and the building. Each of the plurality of shadow boxes is configured to be fixed to the frame structure and is configured to cover a non-visible region of the building. Each of the plurality of shadow boxes includes: That is, a vision glass panel having a peripheral edge part, and a rear structure having a peripheral edge part, which includes a heat insulating material and a rigid enclosure disposed around the heat insulating material, An internal spacer disposed along a peripheral edge of the vision glass panel and a peripheral edge of the rear structure, and holding the vision glass panel spaced from the rear structure, wherein at least one chamber comprises The inner spacer, a first hermetic seal that seals the inner spacer to the vision glass panel, and the inner spacer are defined in the chamber and in which the desiccant is disposed in the chamber. A second hermetic seal that seals the vision glass panel, the rear structure, and the inner spacer A first sealed seal and a second sealed seal that define a closed and sealed air gap, and are arranged around the inner spacer; a peripheral edge of the vision glass; the inner spacer; Architectural seal secured to the rear structure and a rear panel disposed in contact with the rear structure in the hermetically sealed gap, which is desirable for those looking through the vision glass panel And said rear panel having an aesthetic treatment configured to provide a visual effect.

  In another aspect, the invention is a shadow box for use in an architectural curtain wall system that includes an outer first surface, an opposite inner second surface, and a peripheral edge. The rear structure has a peripheral edge and includes a first thermal insulator and a rigid enclosure disposed around the first thermal insulator. The inner spacer defines a plurality of chambers therein, and a desiccant is disposed in the plurality of chambers. The inner spacer is disposed along the second peripheral edge portion inside the vision glass panel and the peripheral edge portion of the rear structure, and holds the vision glass panel separately from the rear structure. A first polyisobutylene seal seals the inner spacer to the vision glass panel, and a second polyisobutylene seal seals the inner spacer to the rear structure, whereby the vision glass panel, the rear structure, and the inner The spacer defines a space hermetically sealed inside. The inner spacer has a length such that the vision glass panel is more than 1 inch away from the rear structure. A silicone seal is disposed around the inner spacer and is secured to the peripheral edge of the vision glass, the inner spacer, and the rear structure to provide structural support therein. The shadow box is pre-manufactured before being inserted into a pre-assembled framework structure.

  These and other aspects of the invention will be apparent from the following description of preferred embodiments and the following drawings. It will be apparent to those skilled in the art that various modifications and variations of the present invention can be made without departing from the spirit and scope of the new concepts of the present disclosure.

FIG. 1A is a front view of one embodiment of a shadow box. 1B is a cross-sectional view taken along 1B-1B of the embodiment shown in FIG. 1A. FIG. 2 is a cross-sectional view of a corner in the second embodiment of the shadow box. FIG. 3 is a cross-sectional view of a corner in the third embodiment of the shadow box. FIG. 4 is a cross-sectional view of a corner in the fourth embodiment of the shadow box. FIG. 5A is a cross-sectional view of a corner in the fifth embodiment of the shadow box. FIG. 5B is a cross-sectional view of a corner in the sixth embodiment of the shadow box. FIG. 5C is a cross-sectional view of a corner in the seventh embodiment of the shadow box. FIG. 6A is a front view of a portion of a curtain wall that uses a shadow box. 6B is a cross-sectional view of a portion of the curtain wall shown in FIG. 6A. FIG. 7 is a cross-sectional view of a corner in the seventh embodiment of the shadow box.

  Preferred embodiments of the invention are described in detail below. In referring to the drawings, like parts are denoted by like reference numerals throughout the drawings. Unless otherwise specified in the following disclosure, the drawings are not drawn to scale. As used herein and throughout the claims, the following terms have the meanings explicitly associated herein, unless the context indicates otherwise. That is, the indefinite articles “a” and “an” and the definite article “the” have a plurality of meanings, and the preposition “in” includes the meanings of “in” and “on”.

  As shown in FIGS. 1A and 1B, one embodiment of the prefabricated shadow box 100 includes a vision glass panel 110 that is spaced from the rear structure 120 to define a void 112. The air gap 112 includes air or an inert gas (argon, krypton, etc.) to improve the thermal properties of the shadow box 100. Vision glass panel 110 includes an outer (first) surface 111 and an opposite inner (second) surface 114. The inner (second) surface 114 of the vision glass panel 110 may be coated to provide the desired visual or thermal effect to the glass. Metal panel 126 covers rear structure 120 and may be painted and / or textured to provide the desired visual effect.

  The spacer 130 separates the vision glass panel 110 from the rear structure 120, and the distance is typically between 1 inch and 6 inches. The spacer 130 may include a plurality of chambers 131, in which a desiccant 133 may be disposed to control the humidity of the gap 112. In one exemplary embodiment, the spacer 130 comprises extruded nylon.

  The spacer 130 is sealed to the vision glass panel 110 and the rear structure 120 with a sealing material 132 that hermetically seals the gap 112 from the outside environment. The spacer 130 is typically filled with a desiccant to manage the moisture present in the gap 112 due to the assembly process. In one embodiment, the sealant 132 may include a polyisobutylene (PIB) sealant. The sealing material 132 minimizes moisture and gas from entering the gap 112 from the outside of the shadow box 100 or moisture and gas from exiting the gap box to the outside of the shadow box.

Silicone seal 134 aligns spacer 130 and vision glass panel 110 to rear structure 120. In one embodiment, the architectural seal 134 includes an architectural grade silicone sealant. Materials used to provide a silicone elastomer typically has a viscosity in the range from 150 mm ² / s of 100,000 mm ² / s at 25 ° C., cured to a suitable tacky, cohesive and coefficient characteristics It is a material that provides an elastomer. Usually, polydiorganosiloxane is used for such materials, and the organic substituent bonded to the silicon atom is an alkyl group having 1 to 10 carbon atoms, such as methyl, propyl, hexyl, decyl, etc. Alkenyl groups having 2 to 8 carbon atoms, such as vinyl, allyl, hexenyl, and the like, and aryl groups, alkaryl groups, and aralkyl groups having 6 to 8 carbon atoms, such as phenyl, tolyl, phenylethyl, and the like. At least 30% of all substituents should be methyl. Preferred from an economic point of view is a polyorganosiloxane in which all the substituents bonded to silicon are methyl. However, it has been found that reduced permeability can be achieved if large substituents such as phenyl groups are present. Usually such compositions contain polydiorganosiloxanes having silicon-bonded reactive groups, and hence the desired room temperature cure can be achieved. Such a group may be, for example, a hydroxy group, an alkoxy group, an oximo group or an acyloxy group, and is usually bonded to a terminal silicon atom of the polydiorganosiloxane.

Silicone compositions generally have a cross-linking agent effective to convert the polyorganosiloxane to a solid elastic state at normal ambient temperature or slightly above, typically about 15 ° C to 30 ° C. used. The selection of the polyorganosiloxane and crosslinking agent may be made to provide a room temperature vulcanization system. Such a composition is, for example,
(I) Vulcanizable organosiloxanes based on organosiloxane polymers having silicon-bonded oxime groups in the molecule and / or based on mixtures of organosiloxane polymers having silanol groups and silanes having at least three silicon-bonded oxime groups Composition. Such compositions are described, for example, in British Patent Nos. 975 603 and 990 107.
(Ii) Vulcanizable organosiloxane compositions based on organosiloxane polymers having terminal silicon-bonded acyloxy groups and / or based on mixtures of silanol-terminated organosiloxane polymers and silanes having at least three silicon-bonded acyloxy groups per molecule object. Such compositions are described, for example, in British Patent Nos. 862 576, 894 758 and 920 036.
(Iii) Vulcanizable organosiloxane compositions based on organosilicone polymers having terminal silicon-bonded amides or amino groups and / or based on mixtures of silanol-terminated organosiloxane polymers and silylamines or silylamides. Such vulcanizable compositions are described, for example, in British Patent Nos. 1 078 214 and 1 175 794.
(Iv) Vulcanizable based on an organosiloxane polymer having a silicon-bonded alkoxy group in the molecule and / or based on a mixture of an organosiloxane polymer having a silanol group and a silane having an alkoxy group or a partial hydrolyzate of the silane. Organosiloxane composition. Such types of compositions are described, for example, in British Patent Nos. 975 255,962 061 and 841 825.

The silicone composition may contain a catalyst such as an organometallic compound such as stannous octoate, dibutyltin dilaurate, titanium chelate. Silicone compositions used in the present invention have terminal silanol ( ^O SiOH) groups, such as any room temperature curing reaction, for example, the so-called two-part type reaction, such as the reaction described in (iv) above. Polydiorganosiloxanes and alkoxysilanes or siloxanes such as methyltrimethoxysilane, ethylpolysilicate or n-propylpolysilicate and metal salts of carboxylic acids such as stannous octoate, dibutyltin dilaurate, dioctyltin dilaurate or Compositions comprising a mixture with dimethyltin carboxylate may be used. As is well known, such compositions are usually prepared and stored in two packages and mixed at the time of use.

  Silicone compositions generally contain at least 5 parts by weight of reinforcing and / or expanding fillers. Examples of such fillers include fumed silica, precipitated silica, crushed quartz, alumina, calcium carbonate (ground or precipitated type), mica, microballoons and clay. Fillers, particularly fillers such as reinforcing silica and calcium carbonate, may be treated, for example, by coating with an organosilicon compound or calcium stearate.

In addition, such silicone compositions can be used as a treatment for plasticizers such as triorganosilyl endcap polydimethylsiloxane, pigments such as titanium dioxide, carbon black, iron oxide, and in situ fillers, or to modify the elastomeric modulus. Low molecular weight polydiorganosiloxane may be included.

  Silicone compositions typically also include an adhesion promoter that is effective to promote adhesion to glass. Preferred adhesion promoters are, for example, by way of example only, obtained by reacting (i) alkylalkoxysilicones, (ii) aminoalkoxysilanes, (iii) epoxyalkoxysilanes (in situ or by pre-treatment). Suitable multi-functional material.

As the alkylalkoxysilicone, certain silicon compounds having at least three silicon-bonded alkoxy or alkoxyalkoxy groups in the molecule or a mixture thereof may be used. The silicon compound may be silane or siloxane. Examples of such silicon compounds include alkyl orthosilicates such as ethyl orthosilicate and propyl orthosilicate, alkyl polysilicates such as ethyl polysilicate and n-propyl polysilicate, monoorganotrialkoxysilicates such as methyltrimethoxy. Examples thereof include silicate, ethyltrimethoxysilicate, methyltri n-propoxysilane, butyltriethoxysilane, and phenyltrimethoxysilane. A preferred material is alkyltrialkoxysilane. As the aminoalkoxysilane, a general formula RHNR′SiXa (OY) having a silicon-bonded hydrocarbonoxy group and a silicon-bonded hydrocarbon group containing at least one amino group (preferably having 12 or less carbon atoms) in the molecule. One or more materials of _3-a may be used. In the chemical formula of silane, the substituent R may be hydrogen, lower alkyl or an aliphatic group containing at least one amino group. Thus, R may be, for example, H, methyl, ethyl, propyl, (CH ₂ CH ₂ NH) _z H group (z is an integer, preferably 1 or 2), or H ₂ NQ group (Q is a divalent hydrocarbon). Group, for example —CH (CH ₃ ) CH ₂ —, — (CH ₂ ) ₄ — or — (CH ₂ ) ₅ —). Substituent Y is, for example, methyl, ethyl or methoxyethyl. a is an integer having a certain value or zero or 1, R ′ represents an alkylene group having 3 to 6 carbon atoms, and X represents a monovalent hydrocarbon group having 1 to 6 carbon atoms. A preferred aminoalkoxysilane of the above general formula is a compound represented by the following formula.
H ₂ N (CH ₂ ) ₂ NHR′Si (OY) ₃ and H ₂ NR′Si (OY) ₃
(R ′ is an alkylene group having 3 or 4 carbon atoms, such as — (CH ₂ ) ₃ — or CH ₂ CH (CH ₃ ) CH ₂ —, and Y represents methyl, ethyl or methoxyethyl, respectively) . A preferred material is K-aminopropyltriethoxysilane. As the epoxyalkoxysilane, one or more silanes having a hydrocarbonoxy group and an epoxy containing an organic group may be used. A preferred material is glycidoxypropyltrimethoxysilane.

  Preferably, the composition contains from 0.1% to 15%, preferably from 0.3% to 7%, more preferably from 0.5% to 5%, more preferably from 0.1% to 15% by weight of the preferred adhesion promoter. Contains 2% to 5% by weight.

While the silicone compositions used in the present invention may use any room temperature curing reaction, preferred compositions are end-terminal, such as the so-called two-part type reaction, such as the reaction described in (iv) above. A polydiorganosiloxane having a silanol ( ^O SiOH) group, an alkoxysilane or siloxane, such as methyltrimethoxysilane, ethylpolysilicate or n-propylpolysilicate, and a metal salt of a carboxylic acid, such as stannous octoate, Compositions comprising a mixture of dibutyltin dilaurate, dioctyltin dilaurate or dimethyltin carboxylate and an adhesion promoter may be used. As is well known, such compositions are usually prepared and stored in two packages and mixed at the time of use.

  Silicone compositions generally contain at least 5 parts by weight of reinforcing and / or expanding fillers. Examples of such fillers include fumed silica, precipitated silica, crushed quartz, alumina, calcium carbonate (ground or precipitated type), mica, microballoons and clay. Fillers, particularly fillers such as reinforcing silica and calcium carbonate, may be treated, for example, by coating with an organosilicon compound or calcium stearate.

  In addition, such silicone compositions include various additives well known to those skilled in the art including, for example, plasticizers such as tridimethylsilyl end-capped polydimethylsiloxane, pigments such as titanium dioxide, carbon black, iron oxide, and the like. May be included.

  The rear structure 120 has a metal enclosure 122 that may include aluminum, in which a thermal insulator 124 is sealed. Insulation 124 may include materials such as mineral wool or polyisocyanurate, but may also include new low density fumed silica based insulation or aerogel. The rigid structure of the metal enclosure 122 sufficiently protects such fragile materials and prevents damage that may occur during assembly. To provide a continuous air and vapor barrier, the ends and seams of the metal enclosure 122 may be sealed.

  In addition, in some embodiments, special purpose members may be placed in the void 112. For example, a grid or grill may be placed against the rear panel 126 to produce the desired visual effect. For the purpose of producing a visual effect at night, long-lived LED electricity may be arranged in the air gap 112. A light collector, a heat recovery panel, and a solar energy panel may be coupled to the rear panel 126 to collect sunlight energy. In general, once the shadow box 100 is installed, it is extremely difficult to repair or replace, so the members placed in the gap 112 must be of a type that has an expiration date equal to the expected expiration date of the building.

  As shown in FIG. 2, in an alternative embodiment of the shadow box 200, the metal panel 226 covering the rear structure 120 may have an inclined surface 228 so as not to form a clear corner. By using the inclined surface 228, the depth can be further felt.

  As shown in FIG. 3, in another alternative embodiment, the rear structure may have a second layer of glass 310 to give the shadow box 300 a more window-like appearance. In order to provide the desired effect on the glass window 310, a flood coated frit 312 may be applied to the rear (fourth) surface. The cover 326 of the spacer 130 may be a painted metal sheet or a painted coating applied directly to the spacer 130.

  As shown in FIG. 4, in another alternative embodiment, the rear structure 420 can be offset to define an open region to allow placement within any Mullion structure. Similarly, as shown in FIG. 5A, another embodiment of a shadow box may include an extended outer glass window 510 and an outer spacer 512 for use with certain existing frameworks. As is well known to those skilled in the art, many combinations of such configurations, as well as many other configurations, are possible without departing from the scope of the scope. As shown in FIG. 5B, if the spacer 130 provides an aesthetically desirable effect, it may be kept uncovered in the gap 112.

  As shown in FIG. 5C, the outer glass window 510 may be further expanded to accommodate the space of an existing curtain wall mullion system (including, for example, metal mullion elements 514 and seals 516, etc.). Such an embodiment may include an insulating element 512 to fill the space between the shadow box system 500 and the mullion element 514. Insulation member 512 may include a block of insulation, such as aerogel, or one of other types of insulation known to the construction industry.

  As shown in FIGS. 6A and 6B, the curtain wall 600 can be formed from a plurality of vision glass window panels 610 and shadow box units 100a-c. (For simplicity, Murion is not explicitly shown in these drawings.) As shown in the drawings, the horizontal shadow box 100a can be used to hide the subfloor structure 10. The vertical shadow box 100b can be used to hide the pillar 12. Several shadow boxes 100c can be placed adjacent to each other to hide other areas (data center, utility room, etc.). Accordingly, it is possible to hide a certain area and to present a glassed appearance. In addition, such shadow boxes can be used in locations on building enclosure systems that include curtain walls where a three-dimensional opaque panel is desired.

  As shown in FIG. 7, the shadow box 700 may include a three-part glass window system, where the vision glass panel 710 includes a first vision glass panel 714 and a second vision glass panel 712 separated by a spacer 716. May be included. The spacer 716 is hermetically sealed with a heat insulating material 720 and supported by a building sealant 722. The rear panel 730 may have a third glass panel with a ceramic frit 732.

  The above-described embodiments relating to prefabricated shadow boxes construct the deep depressions of hermetically sealed shadow boxes using the processes and materials used in the manufacture of insulated glass units, and thus the potential in modern shadow box construction. Addressing the problem of technical / visual defects.

  Since all the components of the shadow box are pre-fabricated in panel form, the above-described embodiments for prefabricated shadow boxes can minimize field installation work.

To do. Minimizing installation time helps reduce on-site labor costs and speeds up construction. Shadow box panels are manufactured under factory conditions that allow better quality control than ad hoc on-site installation, so prefab shadows The above-described embodiment regarding the box improves the quality of the shadow box. Improving the quality of the shadow box provides the added benefit of continuous maintenance cost reduction and extended shadow box life.

  While the above-described embodiments include preferred embodiments and best mode of the invention known to the inventors at the time of filing, such examples are merely illustrative. It will be readily appreciated that various modifications can be made from the specific embodiments described herein without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should not be limited by the specifically described above-described embodiments, but rather should be determined by the following claims.

Claims (28)

A method for providing an element covering an invisible area in a curtain wall of a building, comprising:
(A) A step of pre-manufacturing a plurality of shadow boxes and assembling each of the plurality of shadow boxes by executing the following steps at a place away from both the unit curtain wall assembly factory and the building. And
(I) a step of sealing an internal spacer between the vision glass panel and the rear structure by a first hermetic moisture-resistant hermetic seal and a second hermetic moisture-resistant hermetic seal, The vision glass panel has a predetermined length such that the vision glass panel is separated from the rear structure, and the rear structure has a first heat insulating material and a rigid member disposed around the first heat insulating material. The inner spacer is disposed along a peripheral edge of the vision glass panel and a peripheral edge of the rear structure, and holds the vision glass panel spaced apart from the rear structure. The first hermetic seal seals the inner spacer against the vision glass panel, and the second hermetic seal seals the inner spacer against the rear structure. Is intended to Le, whereby the vision glass panel, said rear structural body, and the inner spacer is to define a void that is hermetically sealed within the steps of the seal,
(Ii) applying a building seal around the inner spacer to fix the peripheral edge of the vision glass panel , the inner spacer, and the rear structure;
(B) delivering the plurality of shadow boxes to one of the selected unit curtain wall assembly factories and a construction site after pre-manufacturing the plurality of shadow boxes;
Having a method. The method of claim 1, further comprising:
Placing at least one of the plurality of shadow boxes in a pre-assembled framework structure at one of the selected unit curtain wall assembly plants and at the building site. The method of claim 1, further comprising:
(A) defining a plurality of chambers in the internal spacer;
(B) disposing a desiccant in each of the plurality of chambers;
A method that has   2. The method of claim 1, wherein the inner spacer has dimensions selected to maintain the vision glass panel spaced at least 1 inch from the rear structure.   The method of claim 1, wherein the first hermetic seal and the second hermetic seal comprise polyisobutylene.   2. The method of claim 1 wherein the thermal insulation is selected from the group of thermal insulation consisting of mineral wool, polyisocyanurate, vacuum sealed fumed silica, aerogel, and combinations thereof.   The method of claim 1, wherein the vision glass panel comprises at least two spaced apart glass panels. The method of claim 1, wherein the rear panel has a rear glass layer having an inner third surface and a rear fourth surface;
Applying a flood-coated frit to a selected one of the inner third surface and the rear fourth surface. The method of claim 1, wherein the rear panel includes a central portion;
Bending the peripheral portion extending outwardly from the central portion to produce a desired visual effect. A curtain wall system for covering a building,
(A) a framework structure configured to be fixed to an outer surface of the building;
(B) a plurality of vision glass panels supported by the framework structure;
(C) a plurality of shadow boxes pre-manufactured before being delivered to both the unit curtain wall assembly plant and the building, each of the plurality of shadow boxes being fixed to the framework structure; Configured to cover a non-visible region of the building,
(I) a vision glass panel having a peripheral edge;
(Ii) a rear structure having a peripheral edge, which includes a heat insulating material and a rigid enclosure disposed around the heat insulating material;
(Iii) an inner spacer disposed along a peripheral edge of the vision glass panel and a peripheral edge of the rear structure, and holding the vision glass panel spaced apart from the rear structure; A chamber defined therein and a desiccant disposed within the chamber;
(Iv) a first hermetic seal that seals the inner spacer to the vision glass panel and a second hermetic seal that seals the inner spacer to the rear structure, whereby the vision glass panel, the rear part The structure and the inner spacer define a space hermetically sealed inside; the first hermetic seal and the second hermetic seal; and
(V) a building seal disposed around the inner spacer and secured to a peripheral edge of the vision glass panel , the inner spacer, and the rear structure;
(Vi) and a rear panel disposed the contact with the rear structure to the hermetically sealed in the gap,
The plurality of shadow boxes, including:
Curtain wall system with. The curtain wall system of claim 10, further comprising:
A first hermetic moisture resistant hermetic seal and a second hermetic moisture resistant hermetic seal;
The curtain wall system, wherein the first hermetic moisture resistant hermetic seal and the second hermetic moisture resistant hermetic seal comprise polyisobutylene.   11. A curtain wall system according to claim 10, wherein the inner spacer has a dimension selected to maintain the vision glass panel spaced at least 1 inch from the rear structure. system.   11. A curtain wall system according to claim 10, wherein the vision glass panel comprises at least two spaced apart glass panels.   11. The curtain wall system of claim 10, wherein the thermal insulation is selected from the group of thermal insulation consisting of mineral wool, polyisocyanurate, vacuum sealed fumed silica, airgel, and combinations thereof. system.   The curtain wall system according to claim 10, wherein the rear panel includes a panel selected from a panel group of a metal plate, a metal composite plate, and a combination thereof.   11. The curtain wall system of claim 10, wherein the rear panel has a rear glass layer having an inner third surface and a rear fourth surface, and a flood-coated frit is provided on the inner third surface. A curtain wall system that is applied to a selected one of a surface and a rear fourth surface.   The curtain wall system according to claim 10, wherein the rear panel has a central portion and a peripheral portion extending outward from the rear structure. A shadow box used for an architectural curtain wall system,
(A) a vision glass panel having an outer first surface, an inner second surface on the opposite side, and a peripheral edge;
(B) a rear structure having a peripheral edge, the rear structure including a first heat insulating material and a rigid enclosure disposed around the first heat insulating material;
(C) An internal spacer in which a plurality of chambers are defined, wherein a desiccant is disposed in the plurality of chambers, and the internal spacer is a second inner side of the vision glass panel. The inner spacer, which is disposed along the peripheral edge of the surface as well as the peripheral edge of the rear structure, and holds the vision glass panel away from the rear structure;
(D) a first polyisobutylene seal that seals the inner spacer to the vision glass panel and a second polyisobutylene seal that seals the inner spacer to the rear structure, whereby the vision glass panel, The rear structure and the inner spacer define a hermetically sealed space therein, and the inner spacer has a length that allows the vision glass panel to be spaced apart from the rear structure by more than 1 inch. The first polyisobutylene seal and the second polyisobutylene seal,
(E) a silicone seal disposed around the inner spacer, secured to a peripheral edge of the vision glass panel , the inner spacer, and the rear structure to provide structural support therein; And having the silicone seal,
The shadow box is manufactured in advance before being inserted into a pre-assembled frame structure.
Shadow box.   19. The shadow box of claim 18, wherein the first insulation is selected from the group of insulation consisting of mineral wool, polyisocyanurate, vacuum-sealed fumed silica, aerogel, and combinations thereof. Shadow box.   19. A shadow box according to claim 18, wherein the vision glass panel comprises at least two spaced apart glass panels. The shadow box of claim 18, further comprising:
The hermetically sealed shadow box is to have a rear panel, wherein the contact with the rear structure is disposed in the gap. The shadow box of claim 21, further comprising:
A shadow box having an inner spacer cover adjacent to the rear panel and disposed in the gap, whereby at least a part of the inner spacer is covered and hidden.   The shadow box according to claim 21, wherein the rear panel includes a metal plate.   The shadow box of claim 21, wherein the rear panel has a central portion and a peripheral portion extending outwardly from the rear structure, thereby creating an illusion of depth.   23. The shadow box of claim 21, wherein the rear panel has a rear glass layer having an inner third surface and a rear fourth surface, and a flood-coated frit is formed on the inner third surface. And a shadow box that is applied to a selected one of the rear fourth surfaces.   19. The shadow box of claim 18, further comprising an outer spacer disposed outside the architectural seal and secured to the vision glass panel, wherein the outer spacer is configured to fit an existing Murion system. The shadow box that is.   27. The shadow box according to claim 26, further comprising a member having a second heat insulating material disposed between the building seal and the external spacer.   28. The shadow box of claim 27, wherein the second insulation is selected from the group of insulation consisting of mineral wool, polyisocyanurate, vacuum sealed fumed silica, aerogel, and combinations thereof. Shadow box.

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