Heated floor and ceiling panel with a corrugated layer for modular use in buildings

A panel for use in a building, the panel comprising:

• a plurality of parallel joists, including a first outer joist at a first side of the panel, a second outer joist at a second side of the panel opposite to the first side of the panel, and a third inner joist positioned between the first outer joist and the second outer joist, wherein the third inner joist is formed of two C-shaped members attached back-to-back;
• a corrugated form deck disposed above and attached to the plurality of parallel joists;
• a ceiling substrate disposed below and attached to the plurality of parallel joists;
• a sound dampener disposed between the corrugated form deck and the plurality of parallel joists;
• an in-floor radiant heat member that is positioned by at least one holder within joist cavities defined by the plurality of parallel joists, wherein:
• the at least one holder is thermally conductive and includes a retention feature that resiliently deforms to define an opening to receive the in-floor radiant heat member and reforms to secure the in-floor radiant heat member,
• the in-floor radiant heat member extends transversely through a first aperture formed transversely through the first outer joist so as to extend the in-floor radiant heat member to a first panel that is adjacent to the panel at the first side,
• the in-floor radiant heat member extends transversely through a second aperture that is formed transversely through the second outer joist so as to extend the in-floor radiant heat member to a second panel that is adjacent to the panel at the second side, and
• the in-floor radiant heat member extends transversely through a third aperture that is formed transversely through the third inner joist so that the in-floor radiant heat member extends continuously between two joist cavities defined at least in part by the third inner joist;
• thermal insulation disposed below the in-floor radiant heat member and disposed between the corrugated form deck and a ceiling substrate;
• and
• a layer of material disposed below and attached to an underside of the corrugated form deck and disposed as a separate layer above the thermal insulation,
• wherein the layer of material covers flutes of the corrugated form deck to restrict upward migration of the thermal insulation into the flutes,
• wherein the layer of material comprises a plurality of layer pieces each having similar length and width dimensions as a corresponding joist cavity defined by two adjacent joists so as to conceal all flutes of the corrugated form deck between the two adjacent joists, and
• wherein the layer of material is thermally conductive, and
• wherein the in-floor radiant heat member is disposed below and attached to the layer of material by the at least one holder to enable the layer of material to receive and conduct heat from the in-floor radiant heat member and such that the layer of material provides uniform radiant heat transfer from the in-floor radiant heat member to the underside of the corrugated form deck, through the corrugated form deck, and into a floor material disposed above the corrugated form deck.

A method to construct a floor system for a building, the method comprising:

• attaching a first pre-assembled panel to a frame of the building, wherein the first pre-assembled panel comprises:
• a panel frame that includes a first plurality of parallel joists and opposing end members, wherein the first plurality of parallel joists form supporting members that span a distance between the opposing end members, and wherein the first plurality of parallel joists include a first joist at a first side of the first pre-assembled panel, a second joist at a second side of the first pre-assembled panel opposite to the first side of the first pre-assembled panel, and a third joist positioned between the first joist and the second joist;
• a first corrugated form deck disposed above and attached to the first plurality of parallel joists;
• a first ceiling substrate disposed below and attached to the first plurality of parallel joists;
• an in-floor radiant heat member disposed between the first corrugated form deck and the first ceiling substrate, wherein:
• one or more joists of the first plurality of parallel joists define a plurality of apertures that extend transversely through the one or more joists,
• the plurality of apertures include a first set of apertures aligned along a centerline of the one or more joists and spaced along the length of the one or more joists, and a second set of apertures offset from the centerline of the one or more joists and spaced along the length of the one or more joists between adjacent apertures of the first set of apertures, and
• the in-floor radiant heat member extends through one or more apertures, of the second set of apertures, formed in the third joist, into pre-assembled panels that are adjacent to the first pre-assembled panel, wherein the pre-assembled panels include a first adjacent pre-assembled panel at the first side, and
• a second adjacent pre-assembled panel at the second side;
• thermal insulation disposed between the first corrugated form deck and the first ceiling substrate;
• and
• a layer of material disposed below and attached to an underside of the first corrugated form deck and disposed as a separate layer above the thermal insulation,
• wherein the layer of material covers flutes of the first corrugated form deck to restrict upward migration of the thermal insulation into the flutes,
• wherein the layer of material comprises a plurality of layer pieces each having similar length and width dimensions as a corresponding joist cavity defined by two adjacent joists so as to conceal all flutes of the first corrugated form deck between the two adjacent joists, and
• wherein the layer of material is thermally conductive, and
• wherein the in-floor radiant heat member is disposed below and attached to the layer of material to enable the layer of material to receive and conduct heat from the in-floor radiant heat member and such that the layer of material provides uniform radiant heat transfer from the in-floor radiant heat member to the underside of the first corrugated form deck and through the first corrugated form deck;
• and
• placing floor material onto the first corrugated form deck, wherein the in-floor radiant heat member is separated from the floor material by the first corrugated form deck.