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-10202759-B2
Application number	US-201715600295-A
Country	US
Kind code	B2
Filing date	May 19, 2017
Priority date	May 19, 2017
Publication date	Feb 12, 2019
Grant date	Feb 12, 2019

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.

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 and at least one horizontal framing member and at least one floor spatially disposed from the interior wall surface of the curtain wall construction defining the safing slot extending between the interior wall surface of the curtain wall construction and an outer edge of the floor, comprising:
i) a first element comprising a non-combustible material for receiving a thermally resistant material for insulating, wherein the first element has a cavity-shaped profile, 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 supplemental element for attaching of the first element with respect to a bottom side of the horizontal framing member of the curtain wall construction,

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

iii) a third element comprising a thermally resistant material for insulating positioned in the sating slot, wherein the third element 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 second element and spatially disposed from the inner surface of the web section of the first element; and
c) a lower primary and an upper primary surface extending between the distal end of each of the outwardly extending sidewalls of the first element and the outer edge of the floor.

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 for supporting and attaching the first element with respect to an inner facing side of the vertical framing member of the curtain wall construction, wherein the fourth element has a substantially L-shaped profile and includes elements for attachment.

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 comprising a vision glass infill and at least one vertical and at least one horizontal metal framing member.

5. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the first element comprises a metal material.

6. The dynamic, thermally insulating and sealing system according to claim 5 , wherein the metal material is an 18 gauge galvanized steel material.

7. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the first element 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 element.

8. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the second element and the third element 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 element adjacent one another.

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

10. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the elements for attaching are selected from the group consisting of pins, expansion anchors, screws, screw anchors, bolts and adhesion anchors.

11. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the at least one supplemental element for attaching extends through the upper outwardly extending side section of the first element and is attached to the bottom side of the horizontal framing member of the curtain wall construction.

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

13. The dynamic, thermally insulating and sealing system according to claim 12 , wherein the outer fire retardant coating has a wet film thickness of at least ⅛ inch.

14. The dynamic, thermally insulating and sealing system according to claim 12 , wherein the outer fire retardant coating covers the top of the thermally resistant flexible mineral wool material overlapping the outer edge of the floor and the interior face of the at least one vertical and at least one horizontal framing member surface of the curtain wall construction by a min. of ½ inch.

15. The dynamic, thermally insulating and sealing system according to claim 12 , wherein the outer fire retardant coating is a water-based or silicone-based outer fire retardant coating.

16. The dynamic, thermally insulating and sealing system according to claim 15 , wherein the outer fire retardant coating is in the form of an emulsion, spray, coating, foam, paint or mastic.

17. The dynamic, thermally insulating and sealing system according to claim 1 ,
wherein the pair of outwardly extending side sections of the first element has a length of about 3 inch from the proximal end to the distal, or
wherein the web section of the first element has a length of about 6 inch from one of its opposing edges to the other one of its opposing edges,
or both.

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

19. A building construction having 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 defining a

Assignees

• Hilti Ag

Inventors

• Andresen Arndt
• Zemler Matthew
• Stroike Chad

Classifications

• E04B1/7612

  in combination with an air space · CPC title

• E04B1/6815

  Expansion elements specially adapted for wall or ceiling parts · CPC title

• E04B2/90

  comprising panels directly attached to the structure {(E04B2/885 takes precedence)} · CPC title

• E04B1/7675 Primary

  Insulating linings for the interior face of exterior walls · 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