US1126186A - Composite lath and heat-insulating material. - Google Patents

Description

G. H. ELLIS.

COMPOSITE LATE ANDBBAT INSULATING- MATERIAL.

l, AHLI'OATIOH :FILED MAY'Q, 1914.

Patented Jan. 26 1915.

, f. I /I centeno GEORGE H." ELLIS. F SIT'. PAUZE, MNNESOTA.

GOMPGSITE LATE AND HEAT-INSULATING MATERIAL.

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Specification of Letters Patent.

lllatentedtlflan. 2e?, itt-M5.

.application`r tiled May 9, 191A. Serial No. 837,555.

To all w/om t may, concern.'

such for example,

Be it known that I', GEORGE H. ELLIS, a Citizeny of the United, States, residing at St. Paul, inthe county of Ramsey and State of 4innesota, have' invented certain new and useful AImprovements in Composite Lath and Heat-'Insulating Material; and I do hereby declare the following to be al full, clear, and exact description of the invention,.such as' will enable others sln'lled in the art to which it appertains to make and use the same. l

My present invention has for its object to provide an improved composite lath and heat insulating building material, and to such ends, generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and y defined in the claims.

The body .of this improved material is preferably a felted sheet of insulating liber, as that disclosed and claimed in United States Patent No. 908,681, granted to James E. Lappen, of

date, January 5th, 1909, and entitled Flax felt, but such insulating material may take various other forms, so far as the broad idea of this invention is concerned. For example, this heat insulating sheet might be composed of Vshredded straw, corn stalks, hemp, or even excelsior7 shavings. However, felted flax or hemp make the best material for the above noted purpose.

On the outer face of the insulating sheet or body is placed a sheet of water proof material, such as a cheap grade of rooiing or some of the better grades of building paper. A heavy water proof paper known under the trade name of Neponsit paper affords a very good material for this purpose. The lath are preferably provided with beveled edges and they are suitably secured on the Water proof facing sheet and are secured to the main body sheet of insulating material, preferably by staples or small nails. The beveled edges of the lath afford dove-tailed channels between the lath which is well adapted to hold the plaster in position.

The invention is illustrated in the single view of drawing, which is perspective view, partly in section and with some parts broken away.

The felted body of insulating material is indicated by the numeral 1, the water proof ing boards but also facing by the numeral 2, and the lath by the numeral 3.

The numeral. 4; indicates staples driven through the insulating sheet 1 andwater proof sheet Q and into the lath.

The numeral 5 indicates the body of plaster vwhich, is applied to the lath and against the waterproof sheet.

This improved building material is adapted to be used both inside and outside of the walls of buildings and it is well adapted to take the place not only of sheathof the ordinaryexpanding material or wirelath. In fact, the wooden lath willlast longer than the metal lath and the insulating body is a vmuch more efficient heat Vinsulator than sheathing boards, even when the latter are combined With many layers of ordinary building paper. In fact, experience has shown that this material is well adapted for use both as a heat insulator and lath, when applied directly to the studding of buildings for the application of the external coat of plaster, cement or stucco. lt is well known that the large number-of air cellsin felted iiber sheets give the same a very high heat insulating quality. The water proof facing sheet is, of course, very desirable because it positively keeps moisture' out of contact with the insulating material and prevents rotting or soul-ing thereof, and furthermore, this facing sheet is also a good heat insula tor and efl'ectually resists the passage of air through the material.

The felted fibrous insulating body sheet,

rigidity to maintain I ordinary handling, is,

while it has suiiicient its own form under nevertheless, quite flexible and may be easily bent in a curved or bther form in a direction transversely of the lath. In the direction of the lath, thecomposite material is stiif so that it is wellada'pted to span the space between studding and to be nailed directly thereto.

What I claim is:

1. A composite lath and heat insulating material comprising a felted insulated body sheet, a water proof facing applied thereto, lath applied to said water proof facing, and metallic fastening devices driven through the said three elements to securely fasten said lath to the said felted bodysheet and to the said facing.

2. A composite lath and heat insulating lll@ material cewmmswg' a sheet, a me e: mooi? eee-'u a; and latn apphe 'J2e 5h16. wete? the said thin-u gether by 1 said nsun* and into sam 3. A compimaterial com "frz3` l@ sheet, a We'eg" D eef sl' and' 151th appie fw :sa

Le sai@ three eemenbs 'be .felelg the edges of ihe Sa led to nord dove-tae @manuels bem'een he mth.

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