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

Patent metadata

Field	Value
Publication number	US-11060280-B2
Application number	US-202016946484-A
Country	US
Kind code	B2
Filing date	Jun 24, 2020
Priority date	Mar 14, 2019
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

An approved dynamic construction effectively thermally insulates and seals 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 surface. The dynamic, thermally insulating and sealing system includes a tubular sealing element having wing-like connection areas for attaching the tubular sealing element to the curtain wall construction and the floor of a building, 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 and to enhance the water-stopping properties of the insulation and seal within 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 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 defining the safing slot extending between the interior wall surface of the curtain wall construction and an outer edge of the at least one floor, the dynamic, thermally insulating and sealing system comprising:
a tubular sealing element comprising a thermally resistant flexible foam material for insulating and sealing, the tubular sealing element positioned in the safing slot, wherein the tubular sealing element comprises:
a) a bottom side cover having at least two side surfaces, wherein at least a portion of both of the at least two side surfaces overlap with at least a portion of the thermally resistant flexible foam material;
b) a top side cover;
whereby the top side cover is connected at two positions, spatially disposed from each other, to the bottom side cover; and whereby the bottom side cover and the top side cover surround the thermally resistant flexible foam material;

c) a first connection area for attaching the tubular sealing element to the interior wall surface of the curtain wall construction, wherein the bottom side cover and the top side cover overlap over at least a portion of the first connection area; and
d) a second connection area for attaching the tubular sealing element to the outer edge of the at least one floor.

2. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the first connection area and the second connection area constitute parts of the bottom side cover and the top side cover.

3. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the top side cover is a top side laminate comprising at least two layers and wherein the bottom side cover is a bottom side laminate comprising at least two layers.

4. The dynamic, thermally insulating and sealing system according to claim 3 , wherein the bottom side laminate comprises a reinforced plastic foil layer.

5. The dynamic, thermally insulating and sealing system according to claim 3 , wherein the top side laminate comprises a reinforced aluminum foil layer.

6. The dynamic, thermally insulating and sealing system according to claim 3 ,
wherein the top side laminate comprises a mesh layer made of a glass fiber material or a ceramic fiber material, and
wherein the bottom side laminate comprises a mesh layer made of a glass fiber material or a ceramic fiber material.

7. The dynamic, thermally insulating and sealing system according to claim 6 , wherein the mesh layer of the top side laminate has a different mesh size compared to the mesh layer of the bottom side laminate.

8. The dynamic, thermally insulating and sealing system according to claim 1 , wherein a lower side of the first connection area attaches the tubular sealing element to the interior wall surface of the curtain wall construction and a lower side of the second connection area attaches the tubular sealing element to a top surface of the at least one floor.

9. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the top side cover is flush with the top surface of the at least one floor.

10. The dynamic, thermally insulating and sealing system according to claim 1 , further comprising an adhesive layer positioned at the first connection area and/or the second connection area.

11. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the thermally resistant flexible foam material is an intumescent, open-celled foam material comprising a fire-protective additive.

12. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the thermally resistant flexible foam material has a density in an uncompressed state of 90 kg/m 3 .

13. The dynamic, thermally insulating and sealing system according to claim 1 , wherein a cross-sectional form of the tubular sealing element is selected from the group consisting of a rectangular shape, a trapezoidal shape, a circular shape, and U-shaped.

14. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the bottom side cover comprises openings or perforations for water transfer from an inner side of the tubular sealing element to an outside.

15. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the tubular sealing element has a width of about 3.54 inches (about 90 mm) in a cross-sectional view, a width of about 4.53 inches (about 115 mm) in a cross-sectional view or a width of about 5.55 inches (about 141 mm) in a cross-sectional view.

16. The dynamic, thermally insulating and sealing system according to claim 1 , wherein the system is configured for acoustically insulating and sealing of the safing slot of the curtain wall structure.

Assignees

• Hilti Ag

Inventors

• Zemler Matthew
• Paetow Mario
• Andresen Arndt

Classifications

• E04B2/7411

  Details for fire protection · CPC title

• E04B9/08

  having the capability of expansion {, e.g. in case of fire} · CPC title

• E04B1/947

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

• E04B1/948 Primary

  Fire-proof sealings or joints (for doors or windows E06B5/164) · CPC title

• E04B2/96

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