Dynamic, fire-resistance-rated thermally insulating and sealing system having a f-Rating of 120 min for use with curtain wall structures

Patent metadata

Field	Value
Publication number	US-12018478-B2
Application number	US-202318310417-A
Country	US
Kind code	B2
Filing date	May 1, 2023
Priority date	May 19, 2017
Publication date	Jun 25, 2024
Grant date	Jun 25, 2024

Abstract

An approved dynamic construction is used 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 includes 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 includes 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 sating slot.

First claim

The invention claimed is:

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 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 comprising:
(i) a first metal piece for receiving a thermally resistant material for insulating, wherein the first metal piece has a cavity-shaped profile, the first metal piece comprising:
(a) a web section having opposing edges and an inner and an outer surface;
(b) a pair of outwardly extending side sections connected to the web section, wherein each side section has an outer and an inner surface, a proximal end and a distal end, wherein the proximal end of each side section is connected to one of the opposing edges of the web section, and wherein the side sections are substantially parallel and confront each other; and
(c) at least one attachment for attaching of the first metal piece with respect to a bottom side of the horizontal framing member of the curtain wall construction,

(ii) a first thermally resistant material for insulating positioned in the first metal piece, wherein the first thermally resistant material includes:
(a) an outer primary end surface positioned in abutment with respect to the inner surface of the web section of the first metal piece;
(b) an inner primary end surface positioned spatially disposed from the outer edge of the floor for sealing thereadjacent; and
(c) a lower primary surface and an upper primary surface extending between the proximal and distal ends of the pair of the outwardly extending sidewalls of the first metal piece and in abutment with respect to the inner surface of each of the outwardly extending side sections,

(iii) a second thermally resistant material for insulating positioned in the safing slot, wherein the second thermally resistant material includes:
(a) an inner primary end surface positioned in abutment with respect to the outer edge of the floor for sealing thereadjacent;
(b) an outer primary end surface positioned in abutment with respect to the inner primary end surface of the first thermally resistant material and spatially disposed from the inner surface of the web section of the first metal piece; and
(c) a lower primary surface and an upper primary surface extending between the distal end of each of the outwardly extending sidewalls of the first metal piece and the outer edge of the floor, and

(iv) a side connection for supporting and attaching the first metal piece with respect to an inner facing side of the vertical framing member of the curtain wall construction,
wherein the first metal piece and the side connection form a 5-sided box pan.

2. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the framing members define a perimeter fire barrier, wherein the 5-sided box pan is placed between the vertical framing members for an entire length of the perimeter fire barrier, with an open side toward the at least one floor and flush with an interior face of the horizontal framing member.

3. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the cavity-shaped profile is a substantially U-shaped profile.

4. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the curtain wall construction is comprised of a vision glass infill, at least one vertical metal framing member, and at least one horizontal metal framing member.

5. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the first metal piece comprises an 18 gauge galvanized steel material.

6. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the first metal piece consists of a first L-shaped member and a second L-shaped member connected to each other to form the cavity-shaped profile of the first metal piece.

7. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the first thermally resistant material and the second thermally resistant material each comprise a thermally resistant flexible mineral wool material to facilitate placement thereof into the safing slot and the cavity-shaped profile of the first metal piece adjacent one another.

8. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the side connection comprises at least one selected from the group consisting of pins, expansion anchors, screws, screw anchors, bolts, and adhesion anchors.

9. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the at least one attachment extends through an upper side section of the outwardly extending side sections of the first metal piece and is attached to the bottom side of the horizontal framing member of the curtain wall construction.

10. The dynamic, thermally insulating and sealing system according to claim 1 , further comprising an outer fire retardant coating positioned across the second thermally resistant material and to the adjacent portions of the at least one vertical framing member and the at least one horizontal framing member of the curtain wall construction and the floor located thereadjacent.

11. The dynamic, thermally insulating and sealing system according to claim 10 , wherein the outer fire retardant coating has a wet film thickness of at least ⅛ inch.

12. The dynamic, thermally insulating and sealing system according to claim 7 , wherein the thermally resistant flexible mineral wool material of the first thermally resistant material is a mineral wool bat insulation having a 3 inch thickness, 8-pcf density, installed with no compression, and/or
wherein the thermally resistant flexible mineral wool of the second thermally resistant material is a mineral wool bat insulation having 4 inch thickness, 4-pcf density, installed with 25% compression, as compared to the second thermally resistant material when uncompressed.

13. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the outer surface of the web section of the first metal piece is positioned spatially disposed from the interior wall surface of the curtain wall construction.

14. A building construction, comprising:
a curtain wall construction defined by 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, thereby defining a safing slot, extending between the interior wall surface of the curtain wall construction and an outer edge of the floor,
wherein the curtain wall construction comprises a dynamic, thermally insulating and sealing system for effectively thermally insulating and sealing of the safing slot, wherein the dynamic, thermally insulating and sealing system comprises:
(i) a first metal piece comprised of a non-combustible material for receiving a thermally resistant material for insulating, wherein the first metal piece has a cavity-shaped profile, the first metal piece comprising:
(a) a web section having opposing edges and an inner and an outer surface:
(b) a pair of outwardly extending side sections connected to the web section, wherein each side section has an outer and an inner surface, a proximal end and a distal end, wherein the proximal end o

Assignees

• Hilti Ag

Inventors

• Andresen Arndt
• Zemler Matthew
• Stroike Chad

Classifications

• E04B2001/8438

  Slot shaped holes · CPC title

• E04B1/94

  against fire ({fire protection of partitions E04B2/7403, E04B2/7409; supporting constructions for ceilings having the capability of expansion in case of fire E04B9/08}; fire-fighting A62C, {e.g. fire prevention or containment A62C2/00}; impregnation of wood or similar materials B27K; {fireproof paints C09D5/18; fireproofing materials C09K21/00; flame-resistant papers D21H5/0002; coverings or linings, e.g. for walls or ceilings, in general E04F13/00}; fireproof doors E06B5/16; {firebreak devices for pipes or the like passing through walls F16L5/04; protection of pipes by means of non-inflammable material F16L57/04}) · CPC title

• E04B1/7625

  Details of the adhesive connection of the insulation to the wall · CPC title

• E04B1/7616

  with insulation-layer locating devices combined with wall ties · CPC title

• E04B1/7612

  in combination with an air space · CPC title