US2141821A

US2141821A - Composite plaster base and insulating unit

Info

Publication number: US2141821A
Application number: US213919A
Authority: US
Inventors: Cecil R Pemberton
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-06-15
Filing date: 1938-06-15
Publication date: 1938-12-27
Anticipated expiration: 1955-12-27

Description

Dec. 27, 1938. c, R. PEMBERTON COMPOSITE PLASTER BASE AND INSULATING UNIT Filed June l5, 1938 2 Sheets-Sheet l Dec. 27, 1938. c. R. PEMBRTON COMPOSITE PLASTER BSE AND INSULATING UIT Filed June 15, 195s 2 Sheets-Sheet 2- Patented Dec. 27, 1938 UNITED STATES PATENT OFFICE 1 "Cecil n. Pemberton, silver spring, Md.

Application June 15, 1938, Serial No. 213,919

11 Claims.

The present invention relates to a composite plaster base and insulating unit for buildingconstruction.

It is an object of the invention to provide a composite plaster base and insulating unit embodying a rigid plaster supporting base and insulating material permanently attached, to the base so that the same may be applied directly to studding or other spaced Supporting members, such as furring strips, roof rafters etc. in a single operation, thereby eliminating the separate handling and installation of insulating material and lathing in the building operation.

' Another object is to provide a composite plaster 5 base and insulating unit in which a rigid base member of novel construction is provided on one side with a plaster receiving surface and on the other side with insulating elements which are supported solely by the base in such a manner as to be wholly disposed between adjacent studding or other supporting elementswhen the unit isv installed.

Another object of the invention is to provide a composite plaster base and insulating unit in which the insulating material is effectively supported over its entire surface area so that it is prevented from packing down after installation in vertical walls and is also protected against moisture.

0 For a better understanding of the invention, reference is made to the accompanying drawings which illustrate preferred embodiments thereof and in which,

Fig. 1 is a sectional perspective view of the front 5 face of a portion of a building wall embodying the invention, y

Fig. 2 is a sectional perspective view of the back of the unit shown in Fig. l,

Fig. 3 is a front elevation of a wall embodying the invention, with parts broken away,

Fig. 4 is a sectional 'view on the line 4,-4 of Fig. 3,

Fig. 5 is a sectional view on the line 5-5 of Fig. 3,

,5 Fig. 6 is a sectional view on the line 6-6 of Fig.v 5, y

Fig. 7 is a sectional perspective view of aportion of a wall embodying a modified yform of the invention, and

I0 Fig. 8 is a sectional perspective view of a pox'-a tion of a wall embodying a further modification.

The form of the invention illustrated in Figs. 1 to 6 inclusive will be described rst. The supporting members I0 which will be referred to as i5 studs for convenience may be furrng strips, raft- .units embodying the invention will be made in sizes and the elements thereof dimensioned for application to supports placed on all standard centers.

The base sheet or panel Il forming a part of 10 the invention is substantially the same in all forms. Y

The base panel II may be of different lengths depending on the spacing between the studding members but in each size classification is preferably long enough to span the intervening spaces between at least three studs. The unit of-Fig. 1 is shown as spanning the spaces between four studs, the ends terminating on the center of the studs at each end of .the unita The base panel `consists of a plurality of lath members I2 maintained in spaced parallel rela'- tion and extending lengthwise of the panel and coextensive therewith. The lath members, which may be ordinary wood lath or composition strips formed of -cement plaster and asbestos, are secured between a facing sheet I3 and a backing sheet I4 of fibrous material such as paper felt. Each of thesesheets is provided on its inside face with a coating I5 of asphalt or similar seal- 30;

ing and adhesive material which serves to secure the laths and sheets together as a unit and also seals the panel against the passage of air or moisture therethrough. In making the unit, the asphalt is applied hot to one surface of each sheet and the lath is placed in position on the coated surface of one sheet and the other sheet is then applied with its coated surface against the lathing strips, thereby forming an integrall unit.

The facing sheet I3 is provided with a plurality of small openings I6 uniformly spaced over the area of the panel. These openings coincide with the spaces I1 betweenthe lathing strips and allow the entry of a part of the plaster I9 applied 45 to the face so as to form interlocking plaster keys I8. It will be noted from an inspection of Figs. 4, 5 and 6 that the plaster keys will ll the cross sectional area of the spaces I1 between the laths, thereby forming sealing stops which divide the spaces I1 into a plurality of dead air cells, thus contributing to the insulating efdciency of the unit.

A pluralityy of pads or batts 20 of insulating wool materiaLvwhich may be any commercial fibrous or Wool-like material, such as Balsam wool or the like, are adhesively secured to the outer face of the backing sheet I4 in spaced relation, each -pad covering the area of the panel which will lie vbetween studs when the unit is in position so that the rear face of the panel is left clear along the lines of contact with the studding.

By mounting the insulating pads on the panel in spaced relation as described, it will be observed that the plane rear face of the panel makes direct contact with the studs so that the front faces of the panels will be flush with each other. This is considered important because if the panels were nailed to the studding with intervening lay-l ers of insulating material, the resulting wall surface would be uneven due to the variation in the compression of the intervening insulation in nailing the units in place.

The insulating pads or batts are secured to the rear face of the panels I I by means of a layer of hot asphalt 2I applied to the backing sheet I4 before the insulation is applied thereto. In order to protect, and additionally support the insulation and increase the water resistant properties of the entire unit, each` pad or batt of insulating material is` enclosed by a wrapping of waterproofed crepe paper 22. The crepe paper is adhesively secured to the batt by means of hot asphalt and the sides are turned inwardly around and under the edge of the bats as indicated at 23 and secured directly to the panel II by means of the asphalt layer 2|. The ends of the paper covering are also turned inwardly and similarly secured as seen at 24.

The insulating batts are thus seen to be entirely enclosed in a water proof covering and are supported on all sides so that there ls no DOSSI- bility of the insulation packing down after installation. i

In order to increase the rigidity of the units and to prevent bending or rolling of the same in handling before installation, a plurality of laths or strips 25 are cemented to the rear face of the panel II at, right angles to the laths I2. These strips are preferably disposed centrally of the area covered by the insulation pads 20. While the hot asphalt used in securing the pads to the backing sheet forms an eiiicient means of attaching the reinforcing strips in position, they may be additionally secured to the laths I2 by suitable metallic clips or nails, if desired.

The ends of the composite panels II are iinished by applying an adhesive binding tape 26 over the edges. This tape serves to seal the ends of the spaces I1 between the laths and also adds to the nished appearance of the unit as a whole.

In applying the units in the fabrication of a wall, the complete unit is placed in position in one operation with the individual envelopes or pads of insulation sliding into position in the spaces betweenadjacent studs and theexposed areas of the backing sheet I5 of the panel Il directly engaging the faces of the studding. The units are then secured in position by nails 21 driven through the panels into the studding.

It will be noted that the clear space on the back of the panels between the ends and the adjacent pads is equal to half the thickness of a stud so that the units can be mounted with their ends in abutting relation and centered on the studs.

In the modied form of the invention shown in Fig. '1, the panel II is of the same construction as described above. In this embodiment, the crepe paper wrapping or envelope 3l completely encloses the insulating pad 3l, extending around to the back of the pad and having its edges lapped over and sealed as at 32. 'I'he ends of the crepe paper wrapping are likewise turned inwardly to seal the upper and lower ends of the insulating pad as at 33. Before the insulating material is enclosed in the paper wrapping, the latter is coated with hot asphalt or the like so as to water proof the same and so that the insulation will be secured to the Wrapping on all surj faces.

A plurality of the complete envelopes are secured to the rear face of the panel I I by means of a hot asphalt layer 34, leaving a space between adjacent envelopes suiicient to receive the studj ding or other spaced supporting members upon which the unit is to be mounted.

A reinforcing transversely extending lath or strip 35 is mounted on the rear face of the panel centrally of each of the envelopes of insulating 1 In this way, the strip would be directly cemented to the panel at spaced Aintervals and would aid in securing the envelope to the panel as well as serving r4to' strengthen the unit against bending or rolling.

In the form of the invention shown in Fig. 8, the insulation which is fitted between the studdings is omitted. This unit may be used where less insulation is required and where an emcient plaster base is the primary objective. This unit also is similar to the panel II, consisting of backing and facing sheets 36 and interposed spaced parallel laths 38, the whole being secured together by asphalt layers 39 applied to the inner faces of the

sheets

36 and 31. A reinforcing strip 40 applied to the rear face of the backing sheet 36 may be provided or in some cases may be omitted if desired.v 'I'he facing sheet is provided with openings 4I opening into the spaces between the laths 38 to form plaster interlocking keys as described above.

It will be seen from the above that the invention provides a very strong durable andl rigid plaster base or wall surfacing member having insulating properties, and also insulation in the form of the pads carried on the back of the panels which pads will engage adjacent studs along the l sides and will Iengage the ends of the pads of adjacent units when a plurality of units are mounted together in making up a wall so that a continuous blanket of insulation will be provided.

While preferred embodiments of the invention have been illustrated and described by way of example, it will be understood that various other modifications and changes in the details may be resorted to without departing fromthe spirit of the invention as dened in the claims.

. I claim:

1. In a composite unit adapted for direct application to spaced supporting elements to form an insulated wall having a surface suitable for the reception of a plaster coat, a rigid panel member comprising a plurality of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting elements, a facing sheet and a backing sheet of fibrous material adhesively united to the opposite faces of said lath members to maintain the latter in spaced relation and form air cells therebetween, and a plurality'of individual insulating pad members adhesively secured to one face of said unit in spaced relation, said insulating pad i members being substantially equal in width to the space between the supporting elements to which the unit is to be applied and spaced apart a distance substantially equal to the width of saidy elements.

, 2. In a composite unit adapted for direct application to spaced supporting elements to form an insulated wall having a surface suitable for the reception of a plaster coat, a rigid panel memberxcomprising a plurality of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting elements, a facing sheet and a backing sheet of fibrous material adhesively united to the opposite faces of said lath members to maintain the latter in spaced relation'and form air cells therebef tween, said facing sheet having a plurality of openings therein coinciding with the spaces between said lath members, for admitting plaster applied to said facing sheet into the interspaces between said laths toform interlocking keys and divide said interspaces into separate closed air cells- 3. In a composite unit adapted for direct application to spaped supporting elements to form an insulated wall having a surface suitable for the reception of a plaster coat, a rigid panel mem ber comprising a plurality of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting elements, a facing sheet and a backing sheet of fibrous material adhesively united to the opposite faces of said lath members to maintain the latter in spaced relation and form air cells therebe. tween, said facing sheet having a plurality of openings therein coinciding with the spaces be; tween said lath members, for admitting plastr applied to said facing sheet into `the interspaces between said laths to form interlocking keys and divide said interspaces into separate closed air cells, and a plurality of individual insulating pad members adhesively secured to one face of said unit in spaced relation: said insulating pad members being substantially equal in width to the distance between the supporting elements to which the unit is to be applied and spaced apart a distance substantially equal to the width of said elements. f

4. In a composite unit adapted for direct application to spaced supporting elements to form an insulated wall having a surface suitable for i the reception of a plaster coat, a rigid panel member lcomprising a plurality. of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting elements, a facing sheet and a backing sheet of brous material adhesively united to the opposite faces of said lath members to maintain the latter in spaced relation and form air cells therebetween, and a plurality of individual insulating pad members adhesively secured to one face of said unit in spaced relation, said insulating pad members being substantially-equal'in Width to the distance between the supporting Lelements to which the unit is to be applied and spaced apart a distance substantially equal to the width of said elements, and a lathing strip secured to the backing sheet insideof said insulating pad members and extending cross-wise 'of the lathing members between said sheets.

5. A composite plaster base and heat insulating material adapted for direct application to wall studding members or the like as a unit which comprises, a rigid panel member comprising a facing of fibrous material and a backing sheet of entrance of plaster applied to said face to form 6. In a composite unit adapted for direct application to spaced supporting elements to form an insulated wall having a surface suitable for the reception of a plaster coat, a rigid panel member comprising a plurality of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting` elements, a facing sheet and a backing sheet of fibrous material adhesively united to the opposite faces of said lath members to maintain the latter in spaced relation and form air cells therebetween, said facing sheet having a plurality of openings therein coinciding with the spaces between said lath membersfor admitting plaster applied to said facing sheet into the interspaces between said laths to form interlocking keys and divide said interspaces into separate closed air cells, a plurality of insulating pad members secured to said backing sheet in spaced relation to each other, saidpad members each comprisinga loosely feltedsheet of fibrous in sulating material, said insulating pad members beingsubstantially equal vin width to the spaces between the supporting building elements to which the unit is to be applied, and spaced apart a distance equal to the width of said elements.

7. In a composite unit adapted for direct application to space supporting elements to form an insulated wall having a' surface suitable for the reception of a plaster coat, a rigid panel member comprising a plurality of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting elements, a facing sheet and a backing sheet of fibrous material' adhestvely united to the opposite faces of said lath members'to maintain the latter in spaced relation an form air cells therebetween, said facing sheet aving a plurality of openings therein coinci ng with the spaces between said lath members, for admitting face of said panel, said insulating pad members I being substantially equal in width to the spaces between the supporting building elements to which the unit is to be applied, land spaced apart a distance equal to the width of said elements.

8. In a composite unit adapted for direct appliction to spaced supporting elements to form an insulated wall having a surface suitable for the reception of a plastercoat, a rigid panel member comprising a plurality of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting members, a facing sheet and a backing sheet of fibrous material adhesively united to the opposite faces ofsaid lath members to maintain the latter in spaced relation and form air cells therebetween, means for sealing the ends of said r plication to spaced supporting elements to form i an insulated wall having a surface suitable for the reception of a plastercoat, a rigid panel member comprising a plurality of lath members disposed in spaced parallel relation and of a length to bridge a plurality of said spaced supporting members, a facing sheet and a backing sheet of brous material adhesively united to the opposite faces of said lath members to maintain the latter in spaced relation and form air cells therebetween said facing sheet having a 'plurality of openings therein coinciding with the spaces between said lath members, for admitting plaster applied to said facing sheet into the interspaces between said laths to form interlocking keys and divide said interspaces into separate closed air cells and means for sealing the ends of said air cells at the ends of said panel comprising a ilexible strip extendingover the edge thereof and /adhesively secured to the .facing and backing sheets. 1

10. In a composite unit adapted for direct application to spaced supporting elements to form an insulated wall having a surface suitable for the reception of a plaster coat, a rigid panel member comprising a plurality of lath# members disposedl in spaced parallel relation and of a Alength to bridge a plurality of said spaced supporting members, a facing sheet and a backing sheet of brous material adhered to the oppo- Vsite faces of said lath members to maintain the latter in spaced relation and form air cells therebetween, one of said sheets having a coating of waterproofing material covering one face thereof, said facing sheet having a pluralityof openings therein coinciding with the spaces between said lath members, for admitting plaster applied to said facing sheet into the interspaces between said lath members to form interlocking keys and divide said interspaces into separate closed air cells.

v11. In a composite unit adapted for direct application to spaced supporting elements to form an insulated wall having a surface suitable for the reception of a plaster coat, a rigid panel member comprising a plurality of composition strips disposed in spaced parallel relation and of a length `to bridge a plurality of said spaced supporting elements, a facing sheet and a backing sheet of fibrous material adhered to the op posite faces of said composition strips to mainf tain the latter in spaced parallel relation and form air cells therebetween, said facing sheet having a plurality of openings therein coinciding with the spaces between said composition strips for admitting plaster applied to said facing