Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
  • E04B9/28—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like having grooves engaging with horizontal flanges of the supporting construction or accessory means connected thereto
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
  • E04B9/24—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
  • E04B9/245—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto by means of screws, bolts or clamping strips held against the underside of the supporting construction
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
  • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
  • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
  • E04B1/84—Sound-absorbing elements
  • E04B1/8409—Sound-absorbing elements sheet-shaped
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/99—Room acoustics, i.e. forms of, or arrangements in, rooms for influencing or directing sound
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/001—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by provisions for heat or sound insulation
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
  • E04B9/0457—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having closed internal cavities
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
  • E04B9/0464—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having irregularities on the faces, e.g. holes, grooves
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
  • E04B9/065—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section
  • E04B9/067—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members comprising supporting beams having a folded cross-section with inverted T-shaped cross-section
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
  • E04B9/12—Connections between non-parallel members of the supporting construction
  • E04B9/122—Connections between non-parallel members of the supporting construction one member passing through the other member, both members laying at least partly in the same plane
  • E04B9/125—Connections between non-parallel members of the supporting construction one member passing through the other member, both members laying at least partly in the same plane both members being continuous members
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
  • E04B9/24—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
  • E04B9/241—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto with the slabs, panels, sheets or the like positioned on the upperside of the horizontal flanges of the supporting construction

Definitions

• the invention relates to drywall ceiling construction and, in particular, to a construction in which taped end joints between drywall sheets are easily concealed.
• Drywall sheets are manufactured as rectangular panels with a standard width of four feet and with a regular series of lengths of 8, 10, 12, 14 and 16 feet or metric industry equivalents.
• the long edges or margins of the sheets are tapered at their face side.
• the tapered margins are provided to enable tape and joint compound to be received in a joint above the face plane of the ceiling being constructed.
• the ends of the sheets are not tapered because of limitations of the production process used to make the sheets. Joints between the ends of drywall sheets, sometimes called butt joints, are difficult to conceal because the thickness of the joint tape intrudes into the plane of the face of the ceiling.
• the butt joints in ceilings are particularly difficult to conceal, in part, because they are often highlighted by indirect lighting. Frequently, a drywall ceiling is heavily textured to mask the presence of butt joints. Texturing of a ceiling is not practical where a relatively smooth surface is specified and/or where the drywall has acoustical properties derived from a porous face.
• sheet metal strips or bars that can be used to suspend transverse sheet metal drywall grid tees.
• the strips or bars have regular keyhole-like slots along their length that capture the upper reinforcing bulbs of the tees.
• Drywall sheets are conventionally attached to the lower flange faces of the suspended grid tees with self-drilling screws.
• the invention provides a grid-based structure for a suspended drywall ceiling that facilitates concealment of drywall butt joints.
• grid runners or tees are suspended in a horizontal plane on parallel regularly spaced centers. Drywall sheets are fastened to lower faces of the grid tees.
• the drywall sheets are
• a flat faced rigid bridge member is located between the adjacent grid runners and overlies the abutted ends of the drywall sheets.
• the bridge member is supported on the top of the flanges of the adjacent runners so that its lower surface is spaced above the plane of the bottom faces of the runner flanges by the effective thickness of the flanges.
• the flange is thicker at hems on its longitudinal edges.
• This bending of the ends of the drywall sheets has the effect of forming a pseudo taper to receive joint tape and joint compound.
• the pseudo taper is adapted to fully receive the joint tape and joint compound above the plane of the major face areas of the drywall sheets.
• the taper is limited both vertically and horizontally so that only a narrow band of joint compound is required to flush out the joint.
• the invention thus avoids butt joints where the tape and joint compound protrude from the plane of the main face areas of the drywall sheets.
• the invention is especially useful in acoustical drywall ceilings such as disclosed in U.S. Patents 8,684,134, 8,770,345 and 8,925,677.
• a heavy texture coat is used to conceal protruding taped butt joints. This approach is impractical with an acoustical ceiling since such coatings would block sound absorbing apertures in the drywall sheets and reduce or eliminate acoustical properties.
• FIG. 1 is a fragmentary cross-sectional view of a butt joint of a suspended drywall ceiling taken in a vertical plane indicated at 1-1 in FIG. 3;
• FIG. 2 is a view of the butt joint of FIG. 1 on an enlarged scale
• FIG. 3 is a fragmentary schematic plan view of a suspended ceiling embodying the invention.
• a suspended ceiling 10 includes rectangular drywall sheets or panels 11 attached to grid runners 12.
• the drywall sheets 11, as is conventional, are gypsum based and are typically 4 foot wide by, 8, 10, 12, 14 or 16 feet long and 3/8, 1/2 or 5/8 inch thick. Dimensions recited in this disclosure are intended to include industry metric
• the long edges of the sheets 11 are tapered for receiving joint compound and joint tape when the sheets are abutted along their long edges.
• the illustrated grid runners 12 are of the T-style with an upper reinforcing bulb 16, a lower flange 17, and a
• the grid runner or tee 12 can be roll formed from a single elongated strip of sheet metal, typically, G40 hot dipped galvanized steel as known in the art .
• a comparatively flat ceiling construction is obtained by using sheet metal hanger bars known in the industry and from U.S. Patents 7,578,107 and 8,898,986 for example.
• the bars 21, suspended in a common horizontal plane by wires 22, are mutually spaced in parallel rows on, for example, 4 foot centers in a direction perpendicular to that of the
• the bars 21 are positioned endwise relative to one another so that they present
• FIG. 3 schematically illustrates an example of a layout of 4 foot by 8 foot drywall sheets 11 and grid tees 12 on 16 inch centers, the latter being determined by the regular spacing of holes 23 in the support bars or hanger bars 21.
• the sheets 11 are arranged with their lengthwise direction perpendicular or crosswise to the longitudinal direction of the tees 12.
• the sheets 11 are further arranged so that their ends 26 are cantilevered and abutted at
• the sheets 11 are attached to lower faces 27 of the grid tees 12 with self-drilling screws 28 that penetrate both the sheets and the tee flanges as is conventional. Inspection of FIG. 2 shows that longitudinal edges of the grid tee flanges 17 are folded up into hollow hems 29 that increase the flange effective thickness, measured vertically across bottom to top of the flange elements.
• the effective thickness can preferably be between about 0.50 inch to about 0.55 inch.
• a bridge element 31 in the form of a flat rectangular rigid board is located in the grid space overlying abutted ends 26 of two drywall sheets 11.
• the illustrated bridge 31 is a flat board with nominal planar dimensions of 4 foot by 15-7/8 inch and with a thickness of 5/8 inch.
• the width dimension is greater than the gap between adjacent flanges 17 so that the board 31, once positioned, cannot readily fall off the flanges 17.
• the board 31 is
• Joint tape is typically about .006 inch to .009 inch thick and 2 inch wide.
• the board is sufficiently rigid to draw the drywall ends up when screwed to it so that the pseudo taper 1- 1/2 inch in from a butt joint edge is elevated at least .009 inch.
• a suitable board product is 5/8 inch FIBEROCK® Aqua- ToughTM interior panels marketed by United States Gypsum
• the disclosed inventive suspension arrangement is particularly suitable for use with acoustical drywall products such as disclosed in the aforementioned U.S. patents.
• the drywall sheets are perforated throughout their major areas through both face and rear paper covering and the face covering is, in turn, covered with a non-woven pervious scrim.
• the scrim is painted to conceal the holes while maintaining sufficient porosity to allow air passage and therefore sound transmission into the perforations.
• the present inventive arrangement enables butt joints of the acoustical drywall sheets to be readily taped and finished without a heavy and/or textured appearance coating to conceal the joints.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Acoustics & Sound (AREA)
• Building Environments (AREA)
• Finishing Walls (AREA)
• Road Signs Or Road Markings (AREA)

Priority Applications (13)

Applications Claiming Priority (2)

Publications (1)

Family

ID=59363281

Family Applications (1)

Country Status (17)

Families Citing this family (7)

Citations (9)

Family Cites Families (15)

• 2016
  • 2016-07-08 US US15/205,102 patent/US9777478B1/en active Active
• 2017
  • 2017-06-12 TW TW106119524A patent/TWI655350B/zh not_active IP Right Cessation
  • 2017-07-06 JP JP2018567700A patent/JP2019519703A/ja active Pending
  • 2017-07-06 AU AU2017293787A patent/AU2017293787A1/en not_active Abandoned
  • 2017-07-06 RU RU2019101502A patent/RU2019101502A/ru not_active Application Discontinuation
  • 2017-07-06 BR BR112018077515-0A patent/BR112018077515A2/pt not_active IP Right Cessation
  • 2017-07-06 PE PE2018003358A patent/PE20190284A1/es unknown
  • 2017-07-06 MX MX2019000107A patent/MX2019000107A/es unknown
  • 2017-07-06 NZ NZ750344A patent/NZ750344A/en not_active IP Right Cessation
  • 2017-07-06 WO PCT/US2017/040888 patent/WO2018009654A1/en not_active Ceased
  • 2017-07-06 KR KR1020197002424A patent/KR20190025641A/ko not_active Ceased
  • 2017-07-06 CN CN201780039487.6A patent/CN109588050A/zh active Pending
  • 2017-07-06 CA CA3030024A patent/CA3030024A1/en not_active Abandoned
  • 2017-07-06 EP EP17740582.6A patent/EP3482010A1/en not_active Withdrawn
• 2018
  • 2018-12-28 CL CL2018003891A patent/CL2018003891A1/es unknown
• 2019
  • 2019-01-21 ZA ZA2019/00428A patent/ZA201900428B/en unknown
  • 2019-02-01 CO CONC2019/0001059A patent/CO2019001059A2/es unknown

Patent Citations (9)

Also Published As

Similar Documents

Legal Events