CA-3059116-C - DYNAMIC, FIRE-RESISTANCE-RATED THERMALLY INSULATING AND SEALING SYSTEM FOR USE WITH CURTAIN WALL STRUCTURES

CA3059116CCA 3059116 CCA3059116 CCA 3059116CCA-3059116-C

Abstract

Described is an approved dynamic construction for effectively thermally insulating and sealing of a safing slot between a floor of a building and an exterior wall construction wherein the exterior wall construction comprises a curtain wall configuration defined by an interior wall glass surface including one or more aluminum framing members, wherein the vision glass extends to the finished floor level below. The dynamic, thermally insulating and sealing system comprises a first element for receiving the insulating elements and positioned in the zero spandrel area of a glass curtain wall construction including only vision glass to maintain thermally insulating and sealing of the safing slot during exposure to fire and heat as well as movement in order to maintain a complete seal extending across the safing slot.

Inventors

Matthew ZEMLER
Chad STROIKE
Arndt Andresen

Assignees

HILTI AKTIENGESELLSCHAFT

Dates

Publication Date: 20260505
Application Date: 20180518
Priority Date: 20170519

Claims (19)

CLAIMS: 1. A dynamic, thermally insulating and sealing system for effectively thermally insulating and sealing of a safing slot within a building construction, having a curtain wall construction defined by an interior wall surface 5 including at least one vertical framing member and at least one horizontal framing member and at least one floor spatially disposed from the interior wall surface of the curtain wall construction, thereby defining the safing slot extending between the interior wall surface of the curtain wall construction and an outer edge of the floor, the system 10 comprising: a first element comprised of a plate having opposing edges and an inner and an outer surface, wherein the plate is recessed from an inner side of the at least one vertical framing member and extends below the vertical framing member in an installed state; 15 at least one supplemental element configured to attach the first element to at least one side of the horizontal and/or vertical framing member of the curtain wall construction in the installed state; a second element comprised of a thermally resistant material for insulating, wherein the second element includes: 20 an outer primary end surface adjacent to the inner surface of the first element; an inner primary end surface positionable spatially disposed from the outer edge of the floor in the installed state for sealing thereadjacent; and a lower primary surface and an upper primary surface extending 25 between the opposing edges of the first element; and a third element comprised of a thermally resistant material for insulating and positioned in the safing slot in the installed state, wherein the third element includes: an inner primary end surface adjacent to the outer edge of the floor in 30 the installed state for sealing thereadjacent; an outer primary end surface adjacent to the inner primary end surface of the second element and spatially disposed from the inner surface of the first element; and a lower primary surface and an upper primary surface extending between the opposing edges of the first element, and wherein the plate has a moment of inertia that is sufficient enough to keep a second element and a third element in place.
2. The dynamic, thermally insulating and sealing system according to claim 1, wherein the dynamic, thermally insulating and sealing system further comprises: a fourth element configured to support and attach the first element with respect to an inner facing side of the vertical framing member of the curtain wall construction 10 in the installed state.
3. The dynamic, thermally insulating and sealing system according to claim 2, wherein the first element and/or the fourth element at least partially form a cavity to receive the second element.
4. The dynamic, thermally insulating and sealing system according to claim 2 or 3, wherein the fourth element comprises at least one fastener selected from the group consisting of pins, expansion anchors, screws, screw anchors, bolts and adhesion anchors.
5. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 4, wherein the plate is recessed at least 2 inches from an inner side of the at least one vertical framing member and extends at least 5 inches below the vertical framing member in the installed state.
6. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 5, wherein the outer surface of the first element is positioned spatially disposed from an inner surface of an vision glass infill in the installed state. 30
7. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 6, wherein the first element is comprised of a metal material.
8. The dynamic, thermally insulating and sealing system according to claim 7, wherein the first element is comprised of steel.
9. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 8, wherein the second element and the third element each comprise a thermally resistant flexible mineral wool material disposed in a cavity at least partially formed by the first element and the safing slot, adjacent one another.
10. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 9, wherein the at least one supplemental element extends through a lip of the first element and is attached to the bottom side of the horizontal framing member of the curtain wall construction in the installed state.
11. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 10, further comprising: an outer fire retardant coating, positioned across the third element and adjacent portions of the at least one vertical and at least one horizontal framing member of the curtain wall construction and the floor located 15 thereadjacent in the installed state.
12. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 11, wherein the outer surface of the first element is positioned spatially 20 disposed from the interior wall surface of the curtain wall construction in the installed state.
13. The dynamic, thermally insulating and sealing system according to any one of claims 1 to 12, wherein the first and the second element are pre-fabricated as a 25 pre-fabricated device, wherein the pre-fabricated device is for assembly within a unitized panel construction.
14. A dynamic, thermally insulating and sealing system for effectively thermally insulating and sealing of a safing slot within a building construction, having a 30 curtain wall construction defined by an interior wall surface, including at least one vertical framing member and at least one horizontal framing member and at least one floor spatially disposed from the interior wall surface of the curtain wall construction, thereby defining the safing slot extending between the interior wall surface of the curtain wall construction and an outer edge of the floor, the system 35 comprising: a first element comprising a plate having opposing edges and an inner and an outer surface, wherein the plate is recessed from an inner side of the at least one of the vertical framing member and extends below the vertical framing member in an installed state; at least one supplemental element configured to attach the 5 first element to at least one side of the horizontal framing member and/or vertical framing member of the curtain wall construction in the installed state; a second element comprised of a thermally resistant material for insulating, wherein the second element includes: 10 an outer primary end surface adjacent to the inner surface of the first element; an inner primary end surface adjacent spatially disposed from the outer edge of the floor in the installed state for sealing thereadjacent; and a lower primary surface and an upper primary surface extending 15 between the opposing edges of the first element; and a third element comprised of a thermally resistant material for insulating, positioned in the safing slot in the installed state, wherein the third element includes: an inner primary end surface adjacent to the outer edge of the floor in the installed state for sealing thereadjacent; 20 an outer primary end surface adjacent to the inner primary end surface of the second element and spatially disposed from the inner surface of the first element; and a lower primary surface and an upper primary surface extending between the opposing edges of the first element.
15. A building construction, having: a curtain wall construction comprising an interior wall surface including one or more framing members and at least one floor spatially disposed from the interior wall surface of the curtain wall construction, defining a safing slot extending between the 30 interior wall surface of the curtain wall construction and an outer edge of a floor, wherein the curtain wall construction comprises the dynamic, thermally insulating and sealing system as defined in any one of claims 1 to 14 for thermally insulating and sealing of the safing slot.
16. A process for assembling a unitized panel for use within an exterior dynamic curtain wall, comprising: assembling a frame for the unitized panel by fastening left vertical framing members and right vertical framing members and upper horizontal framing members and lower horizontal framing 5 members together; installing anchor brackets to the vertical framing members for mounting the unitized panel to a building structure; installing one or more water gasket seals to the framing members to seal the unitized panel and the building structure from water intrusion; 10 installing a first element and a second element, wherein the first element is comprised of a non-combustible material for receiving a thermally resistant material for insulating, wherein the first element is comprised of a plate having opposing edges and an inner and an outer surface, and wherein the plate has a moment of inertia that is sufficient 15 enough to keep a second element and a third element in place, wherein the plate is recessed from an inner side of the vertical framing member and extends below the vertical framing member, wherein the second element is for supporting and attaching the first element with respect to an inner facing side of the vertical framing member 20 of the curtain wall construction, wherein the second element has a substantially L-shaped profile and includes elements for attachment, wherein the first element and/or the second element at least partially form a cavity capable of receiving a thermally resistant material for insulating; 25 installing at least one additional element selected from the group consisting of gaskets, hardware, and components to prepare the unitized panel for glass installation; and completing the unitized panel by installing glass and one or more sealing layers to the unitized panel.
17. The process according to claim 16, wherein the process further includes installing a thermally resistant material into the cavity.
18. A process for assembling a fireproof system within a stick build exterior dynamic 35 curtain wall façade, the process comprising: assembling a framing structure by attaching anchoring brackets to horizontal and vertical framing members and to concrete and steel members of the façade to a building structure; installing water gasket seals to the framing members to seal the framing structure and the building structure 5 from water intrusion; installing a first element and a second element, wherein the first element is comprised of a non-combustible material for receiving a thermally resistant material for insulating, wherein the first element is comprised of a plate having opposing edges and an inner and an 10 outer surface, and wherein the plate has a moment of inertia that is sufficient enough to keep a second element and a third element in place, wherein the plate is recessed from an inner side of the vertical framing member and extends below the vertical framing member, wherein the second element is for supporting and attaching the first 15 element with respect to an inner facing side of the vertical framing member of the curtain wall construction, wherein the second element has a substantially L-shaped profile and includes elements for attachment, wherein the first element and/or the second element at least partially 20 form a cavity capable of receiving a thermally resistant material for insulating; installing at least one additional element selected from the group consisting of gaskets, hardware, and components to prepare the framing structure for glass installation; completing the curtain wall façade by installing glass and one or more sealing 25 layers to the façade; installing a thermally resistant material into the cavity and a safing slot, wherein the safing slot is defined as extending between the interior wall surface of the façade and an outer edge of a floor. 30
19. The process according to claim 18, wherein the process further includes applying an outer fire retardant coating, positioned across the thermally resistant material installed in the safing slot and the adjacent portions of the vertical and horizontal framing members and the floor located thereadjacent.

Description

5 Dynamic, fire-resistance-rated thermally insulating and sealing system for use with curtain wall structures FIELD OF THE INVENTION The present invention relates to the field of constructions, assemblies and systems designed to thermally and acoustically insulate and seal a sating slot area defined between a curtain wall and the individual floors of a building. In particular, the present 15 invention relates to a dynamic, fire-resistance-rated thermally insulating and sealing system for use with curtain wall structures, which include glass, especially vision glass extending to the finished floor level below. Further, the present invention relates to a dynamic, thermally insulating and sealing system, parts of which provide a pre-fabricated device for use within a unitized panel construction. BACKGROUND OF THE INVENTION Curtain walls are generally used and applied in modern building constructions and are the outer covering of said constructions in which the outer walls are non-structural, but 25 merely keep the weather out and the occupants in. Curtain walls are usually made of a lightweight material, reducing construction costs and weight. When glass is used as the curtain wall, a great advantage is that natural light can penetrate deeper within the building. 30 A curtain wall generally transfers horizontal wind loads that are incident upon it to the main building structure through connections at floors or columns of the building. Curtain walls are designed to resist air and water infiltration, sway induced by wind and seismic forces acting on the building and its own dead load weight forces. Curtain walls differ from store-front systems in that they are designed to span multiple floors, and take into consideration design requirements such as thermal expansion and contraction, building sway and movement, water diversion, and thermal efficiency for cost-effective heating, 5 cooling, and lighting in the building. However, architects and the public at large appreciate the aesthetics of glass and other light-transmitting materials used in the built environment. Light-transmitting materials, that serve both an aesthetic function as well as a structural function, are appreciated for 10 their economy and visual effects. A common means prescribed by architects to achieve these goals in building structures is through the use of glass curtain wall systems. A typical glass curtain wall structure is designed with extruded aluminum members. The aluminum frame is typically infilled with glass, which provides an architecturally pleasing 15 building, as well as benefits such as daylighting. Usually, for commercial construction, 1/4 inch glass is used only in spandrel areas, while 1 inch insulating glass is used for the rest of the building. In residential construction, thicknesses commonly used are 1/8 inch glass in spandrel areas and 5/8 inch glass as insulating glass. Larger thicknesses are typically employed for buildings or areas with higher thermal, relative humidity, or sound 20 transmission requirements. However, outside-inside sound transmission correlation is usually relevant for all type of residential buildings. With a curtain wall, any glass may be used which can be transparent, translucent, or opaque, or in varying degrees thereof. Transparent glass usually refers to vision glass in 25 a curtain wall. Spandrel or vision glass may also contain translucent glass, which could be for security or aesthetic purposes. Opaque glass is used in areas to hide a column or spandrel beam or shear wall behind the curtain wall. Another method of hiding spandrel areas is through shadow box construction, i.e. providing a dark enclosed space behind the transparent or translucent glass. Shadow box construction creates a perception of 30 depth behind the glass that is sometimes desired. Aesthetic design and performance levels of curtain walls can be extremely varied. Frame system widths, depths, anchoring methods, and accessories have grown diverse due to industry and design innovation. In general, a glass curtain wall structure or glass curtain wall construction is defined by 35 an interior wall glass surface including one or more framing members and at least one floor spatially disposed from the interior wall surface. The gap between the floor and the interior wall surface of a curtain wall defines a sating slot, also referred to as perimeter slab edge (void), extending between the interior wall surface of the curtain wall construction and the outer edge of the floor. This sating slot is essential to slow the 5 passage of fire and combustion gases between floors. Therefore, it is of great importance to improve fire stopping at the sating slot in order to keep heat, smoke and flames from spreading from one floor to an adjacent floor. Due to the increasingly strict requirements regarding fire-resistance as well as horizontal 10 and vertical movement, there is a need for a dynamic, thermally and acoustically insulating and sealing