Fire-resistance-rated thermally insulating and sealing system for use with curtain wall structures

Patent metadata

Field	Value
Publication number	US-10017939-B2
Application number	US-201514950886-A
Country	US
Kind code	B2
Filing date	Nov 24, 2015
Priority date	Nov 24, 2015
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A construction for effectively thermally insulating and sealing of a safing slot between a floor of a building and an exterior wall construction is disclosed. The exterior wall construction includes a curtain wall configuration defined by an interior wall glass surface including one or more aluminum framing members, where the vision glass extends to the finished floor level below. The thermally insulating and sealing system includes an offset leg framing 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 in order to maintain a complete seal extending across the safing slot.

First claim

What is claimed is:

1. A 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 one or more framing members 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 comprised of a thermally resistant material for insulating positioned in the safing slot, wherein the first element includes:
a) an inner primary end surface positionable in abutment with respect to the outer edge of the floor for sealing thereadjacent;
b) an outer primary end surface positionable spatially disposed from the interior wall surface of the curtain wall construction; and
c) a lower primary facing surface extending between the inner primary end surface and the outer primary end surface and facing downwardly therebetween;

ii) a second element comprised of a non-combustible material for receiving the first element positioned substantially in the safing slot in abutment with respect to a bottom of the floor and essentially spatially disposed from the interior wall surface of the curtain wall construction, wherein the second element includes:
a) a web section having opposing edges; and
b) a pair of outwardly extending sidewalls integrally connected to the web section, wherein each sidewall has a proximal end and a distal end, wherein the proximal end of each sidewall is integrally connected to one of the opposing edges of the web section, and wherein the sidewalls are substantially parallel and confront each other; and

iii) a supplemental element for attaching of the second element with respect to the bottom of the floor;
wherein the second element is attached using the supplemental element to the bottom of the floor and to an interior horizontal framing member of the curtain wall construction.

2. The thermally insulating and sealing system according to claim 1 , wherein the second element is positioned spatially disposed from the interior wall surface of the curtain wall construction and spatially disposed from the lower primary facing surface of the first element, and extends across the safing slot toward the outer edge of the floor thereadjacent.

3. The thermally insulating and sealing system according to claim 1 , wherein the second element is a metal material.

4. The thermally insulating and sealing system according to claim 3 , wherein the metal material is steel.

5. The thermally insulating and sealing system according to claim 1 , further comprising a third element comprised of a thermally resistant material for insulating positioned in the safing slot in abutment with respect to the outer primary end surface of the first element and in abutment to an interior of the web section of the second element and partially to inner facing surfaces of the outwardly extending sidewalls of the second element.

6. The thermally insulating and sealing system according to claim 5 , wherein the first element and the third element each comprise a thermally resistant flexible material to facilitate placement thereof into the safing slot adjacent one another.

7. The thermally insulating and sealing system according to claim 5 , wherein the first element and the third element each comprise a thermally resistant flexible mineral wool material to facilitate placement thereof into the safing slot adjacent one another.

8. The thermally insulating and sealing system according to claim 7 , wherein the thermally resistant flexible mineral wool material is installed with fibers running parallel to the outer edge of the floor and the interior of the web section of the second element.

9. The thermally insulating and sealing system according to claim 1 , further comprising a connecting framing element of a non-combustible material, positioned between the second element and the bottom of the floor in front of a vertical framing member.

10. The thermally insulating and sealing system according to claim 9 , wherein the connecting framing element is a metal material.

11. The thermally insulating and sealing system according to claim 10 , wherein the metal material is steel.

12. The thermally insulating and sealing system according to claim 1 , further comprising an additional element comprised of a thermally resistant material for insulating positioned in the safing slot in abutment with respect to the lower primary facing surface of the first element and to an upper facing surface of one of the outwardly extending sidewalls of the second element.

13. The thermally insulating and sealing system according to claim 12 , wherein the additional element comprises a thermally resistant flexible mineral wool material to facilitate placement thereof into the safing slot.

14. The thermally insulating and sealing system according to claim 1 , wherein the supplemental element is a structural fastening element.

15. The thermally insulating and sealing system according to claim 14 , wherein the structural fastening element is a pin, an expansion anchor, a screw anchor, a bolt, or an adhesion anchor.

16. The thermally insulating and sealing system according to claim 15 , wherein the structural fastening element extends through the second element and is attached to the bottom of the floor and to the interior horizontal framing member of the curtain wall construction.

17. The thermally insulating and sealing system according to claim 1 , further comprising an outer fire retardant coating positioned across the first element and adjacent portions of an interior framing member of the curtain wall construction and the floor located thereadjacent.

18. The thermally insulating and sealing system according to claim 17 , wherein the outer fire retardant coating has a wet film thickness of at least ⅛ inch.

19. The thermally insulating and sealing system according to claim 17 , wherein the outer fire retardant coating covers a top of a thermally resistant flexible mineral wool material overlapping the outer edge of the floor and an interior face of the interior framing member of the curtain wall construction by a min. of ½ inch.

20. The thermally insulating and sealing system according to claim 18 , wherein the outer fire retardant coating is a water-based or silicone-based outer fire retardant coating.

21. The thermally insulating and sealing system according to claim 20 , wherein the outer fire retardant coating is in a form of an emulsion, a spray, a coating, a foam, a paint or a mastic.

22. 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 safing slot extending between the interior wall surface of the curtain wall construction and an outer edge of the floor, comprising:
a thermally insulating and sealing system for effectively thermally insulating and sealing of the safing slot, comprising:
a first element comprised of a thermally resistant material for insulating positioned in the safing slot, wherein the first element includes:
an inner primary end surface positionable in abutment with respect to the outer edge of the floor for sealing thereadjacent;
an outer primary end surface positionab

Assignees

• Hilti Ag

Inventors

• Andresen Arndt

Classifications

• E04B1/947 Primary

  by closing openings in walls or the like in the case of fire (fire-proof doors E06B5/16) · CPC title

• E04B2/96 Primary

  comprising panels attached to the structure through mullions or transoms {(E04B2/885 takes precedence)} · CPC title