US2404481A

US2404481A - Lathing material

Info

Publication number: US2404481A
Application number: US622119A
Authority: US
Inventors: Joseph L Finck
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-10-13
Filing date: 1945-10-13
Publication date: 1946-07-23
Anticipated expiration: 1963-07-23

Description

4July 23, 1946.

y J; L. FINCK I LATHING MATERIAL Filed Oct. l5, 1945 v coating on the building paper.

Patented July 23, 1946 UNITED STATES PATENT oFFicB LATHING MATERIAL Joseph L. Finck, Brooklyn, N. Y.

Application October 13, 1945,Y Serial No. 622,119

' The present invention relates generally to lathing material and more particularly'to a metal lathing material, such as expanded metal, or the like.

One of the objects of the present invention is to provide a self-furring metal lathing material. Thus the present lathing material when applied against the studs or sheathing on the inside or outside lof a frame wall or against a brick wall provides an air space lbetween the lathing material and the wall.

Another object of the present invention is to provide such a self-furring lathing material which will have a substantially monoplanar plaster-receiving front face and which will be substantially free of all obstructions on its plaster-receiving face so that the plasterer may perform the plastering operation with facility.

A still further object of the present inventionV is to provide a metal lath which also constitutes an insulating building material. For this purpose,'the metal lath is -backed by a ilexible sheathform insulating material in the form of a building paper coated with aluminum or aluminum foil. The aluminum coatedr building paper, with the aluminum coat on its rear side, namely, on the side exposed to the wall, serves to reflect radiated heat and prevent the transmission of radiated heat across the air space between the lathing and the wall.

The present invention further aims tovprovide metal lathing material Which is combined with ametal coated building paper so as to convert thelathing into an insulating material, the combination or structure being such as to prevent any of the plaster or any of the liquids in the plaster vfrom gaining access to the aluminum Such liquids would corrode the aluminum foil or any other aluminum coating onthe building paper. In the present invention, therefore, furring or spacing strips or grips are employed which serve to grip, fix, and rmly attach the metal coated building paper onto the back of the metal lath.

Other objects and advantages of the present invention will be understood by persons skilled in the art from a reading of the following specication and from the accompanying drawing which illustrates the present invention.

In the drawing:

Fig. 1 is a diagrammatic cross section of the lathing material;

Fig. 2 is a cross section of this lathing material mounted on a wall;

6 Claims. (C1. 'z2-117) Y 2 Fig. 3 is a section taken along the Fig. 2; and 1 y Fig. 4 is a face view of the lathing material. The present invention aims to provide a building material which comprises Within it permanently assembled the desired elements so that the same serves as a plaster lath, and as an insulat-y with metal such as aluminum or aluminum foil.l Any suitable lathing material may be employed in the construction of the p resent building material. As illustrated in the accompanying drawing, the expanded metal lath I0 is employed in the` present assembly. Such lathing material permits the plaster to enter the openings in the material and thus becomes located with and to the lathing material. In the present invention the back face of the Vmetal lath I0 is lined with the building paper II which may be in the form'v of any suitable asphalt coated paper, or kraft paper, or any other suitable paper. On its back face, namely, on the face that would be exposedv to the Wall, thebuilding paper II lis adhesively covered with aluminum foil I2. The paper lying against the back of the metal lath will prevent the extrusion of excessive amounts of plaster through the openings in the metal lath.

In order to maintain the aluminum coatedl building paper and the metal lath in iixed and permanent assembly, the metal lath'is provided` lengthwise or widthwise ofthe metal lath, as,`

desired. It will be noted that theser ribs I3l are formed by crimping the metal lath. While these ribs or crimped portions should lextend entirely across thedimension' of the sheets of metal lath, their depth may be varied.

Essentially the depth of the rib or crimping should be large enough so that it may be gripped by the spacing or furring strip I4. The furring strip I4 may be employed in the form of the spaced short sections. It is preferred, however, that the same be coextensive with the ribs I3 so that thereby it may offer rigid support to thatl portion of the metal lathing. The aluminum coated building paper is also suitably crimped, as shown, and its crimping overlies the ribs I3.

une 3-1-3 'or The furring stripsA I4 serve to grip and rml Y attach the building paper to the metal lath.

operation with the result that the curved portions of the'side walls of the furring strip I4 form a rigid and firm assembly together with the aluminum coated building paper and the ribs I3.

ceive nails for mounting the lathing on the wall and to space the lath from the wall.

therassembly is subjected to a further crimping.v

2. A self-furring lathing comprising in combination, a metal lathing material Vhaving a plaster receiving front face and a rear face, the

material having integrally formed ribs on its rear A face, a layer of paper on its rear face, the paper bearing a coating of aluminum on its rear face, gripping means disposed over said ribs serving to hold the paper in assemblyiwiththe 'metal lath to receive nails for mounting the lathing on the wall and to space the lathing from the Wall.Y

3. An insulating building material `comprising Vin combination, a metal lathing material having The depth vofthe furring stripv Ill-'may be Vvaried use to which the material is to be put and will depend, ofcourse, upon the size of the air. space V,as desired and Vwill depend upon the particular that may be desired. Thevbottom of the furring Y strip I4 is preferably at s0 that it will rest solidlyV Vagainst the surface'to which it is applied.

'jIn' use, the material is placed against the wall with; the' bottom ofthe furring strips resting solidly 'against' them and nails V2lv are driven through the ribs I3 and the bottoms of the furring strips Il, as'shown, andinto Wall 20. The' broad heads '22 of the nails 2| will tend to lodge in the ared portionV of'the channel and will thus serve to gripVV the expanded' metal and the aluminum coated VVbuildingpaper between its head and the ii'aredportionsof the furring strip I4;

It will n'ow be understood that the present material'. constitutes "a unitary productwhichV 3 Vforms "a self-furring andv heat insulating lathing A *material V,Themetal coated building paper is heldagainst the metallathing rby friction exerted by the ffurring strips against the ribs. The build',-

`. ing paper thus can well outstand'the force exerted by the'plasterer Vin applying the plaster'on the lath. The v'paper willv not tear andwill serve to limitthe amount of extrudedf'and wasted plaster. Thel'rib's or ridges I3 add rigidity to the metal lath and generally'improve the rigidity of the finished plaster wall. 'It will also be. appreciated that the present building material may be in# stalled' without anyV operations other than those customarily employed in the installation of' metal Y lath inV that the' only operations that AneedV to be Yperforrnedon the building job is driving the nails 2'I' through the' metal and onto the wall.

ffcl'aim: Y Y Y l Y VV1.7fAn insulating building material comprising in combination,V` a metal lathing material' having Y a rplaster receiving front face and a rear face,I the Vmaterial having on its rear face spaced parallel Qri'bs, 'a layer of paper on'its rear face, the paper Vbearing a coating of heat reflecting material on it'sjrearjface,Y spacing and gripping strips disposed'over said ribs'V serving to'hold the paper in assembly .with the metal'lath, said strips being Y f substantially channel shapedfandserving to ref-V a plaster receiving front face and a rear face, the l material having integrally formed ribs on its rear Vface; alayer of paper on its rear face, the paper bearing a coating of aluminum on'its rear face, gripping stripsdisposed overV said ribs serving to hold the paper in assembly with the metal lath, said gripping strips. being vsubstantially*channel, shaped and serving to' receive nails forV mounting the lathing on the wallv and to space the lathing from the wall. Y 4; An insulating building, material comprising in combination, a metal lathing material having in assembly with Vthe metal lath, sai'd gripping strips. being substantially channel shaped' andV i, having outwardly flared free'edges, the"v strips a substantially monoplanar plaster receiving front face and a rear face,Y the material having in-.

tegrally formed ribs onv its'rear face, a layer oi paper on its rear face, the paper bearing a coat;

ing ofaluminum onits rear face, grippingstrips l disposed over said ribs serving to hold the paper serving to receive lnails for mounting the lathingY on the wall and to permit the headrof the nail to lodge in the ilared portion of the strip.

A self-furring lathing'comprising in combination, a metal lathing material having a plaster receiving front face and a rear face, the material having integrally formed ribs on its rear face, alayer of paper on its rear face,r and spacing strips disposed over and gripping Ysaid-ribs,

said strips being substantially channel-shaped and serving to receive nails'for mounting thev Y lathing on the wall and to space'the lathing from thewall, said strips also serving to hold' thev paper in assembly with the metal lath.

A self-ruiming lathing comprising meomr bination,r a metal lathingmate'rial having av plaster receiving front face and a rear facegthe material having parallel. reentrant strips forming ribs on its rear face,. a layer of paper on itsIear face, and spacers disposed overand gripping said` Y ribs, said spacersbeing substantiallyvch-annel shaped, and having outwardly liared free edges,

thev spacers serving toV receive nailsf-or: mountingA the lathing on the wall, said spacersvalsol serving to hold the paperin` .assembly withthe-'metall'