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Патент USA US2117763

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` May 17, 1938.
Filed May 1'?, 19‘37
Eg. 4
ì GEO/PGE /-/. ELL/5
BY 094.01: W°°ÄwamL .
,I` 2,117,163
P_’atented May 17, 1938
George H. Ellis, New Brighton, Minn., assignor to
The Insolite Company, Minneapolis, Minn., a
corporation of Minnesota.
Application May 17, 1937, serial No. 142,962
3 Claims. (Cl. 72-16)
This invention relates to the'art of building
and the primary object is to provide an improved
construction of walls and the like, wherein the
plaster is carried by a base material, which, in'
5 turn, is carried or supported by studding or other
rigid means forming the central portion of the
Another object is to provide a substantially air
tight jointed plaster base that is moisture and
10 vapor proof, the same consisting of a series of
slabs, panels or boards having a water-proof
coating upon the surface to which the plaster is
Further and more specific objects will be dis
15 closed in the course of the following specifica
tion, reference being had to the accompanying
drawing wherein:
used but it is to be understood that other types
of joints may be resorted to as long as a tight
joint is provided. To prevent opening of the
joints during plastering, suitable means is pro
vided for locking the joints. A very satisfactory
means `of accomplishing this is by securing to one
slab a rigid means I5, which extends across the
joint and contacts the adjacent slab.
The surface of the base material which receives
the plaster, is coated with water-proofing mate 10
rial and preferably with a water-prooiing mate
rial that increases the bonding of the plaster.
Among the water-proofing materials that havegiven satisfactory results are asphalt, asphaltum,
tar, pitch, gloss oil and the like. The water 15
proofing material prevents moisture from enter
ing the plaster base material I3.
Figure 1 is a view of the plaster base material
For the most eflicient results the surfaces of
provided with a water-proof coating on one face. , the base material facing the air spaces should be
Figure 2 is a sectional view with parts broken provided with a vapor seal I8. Foil, aqueous so 20
away of the improved wall construction.
lutions of metallic substances, latex and non
Figure 3 is a view of the plaster base material metallic mineral material have given highly satis
provided with a water-proofing coat on one face
and a vapor seal on the opposite face.
Figure 4 is a sectional view of a wall structure
in which the vapor and moisture proof plaster
base is used.
In air conditioned buildings much diñ‘lculty has
been experienced in the passing of moisture from
the interior of the building> and condensing in
the air spaces. In cold weather this condensate
freezes and forms a coating of ice..on the inner
surfaces or «the air spaces. By the use of this
invention this undesirable condition cannot oc
factory results as a vapor seal.
f It is to be understood that many variations
and modifications may be made that fall with
in the scope of the invention. 'I'he water-prooñng 25
and vapor-proofing materials mentioned have
given excellent results but it is to be understood
that any material may be used which gives a
water-proof coating on the plaster receiving face 30
and a vapor-seal on the opposite face.
What I claim is:
l. A building wall construction comprising sup
porting members, and slabs of porous plaster re
ceiving material secured thereto with‘their rear 35
'I'he slabs or panels forming the plaster receiv
faces coated with vapor-proofing material and
ing base, to give satisfactory results must remain . facing hollow wall spaces between the supporting
closed at all times and particularly during plas
members, the plaster receiving faces coated with
tering.' If plaster enters the joint during plas
water-proofing material, and joints lof the base
tering the joint will remain open and the air seal material locked against opening during plaster
is broken and moisture and vapors are easily
transmitted to the air spaces in the wall. The
'joints occurring between the supporting mem
bers should be so arranged that they will remain
45 closed at all times.
Referring to the drawing in detail I0 is rep
resented studding or other supporting members
to which are secured sheathing Il, which forms
at least a part of the outer wall of a building.
5 O Secured to the studding is plaster base material
13. The plaster base material may be in the
Aform of an insulatingboard or slab. Vegetable
fiber board, gypsum board and the like have
given highly satisfactory results.
The plaster base material should be provided
, with relatively tight joints and-an air tight joint
of the form of an overlapping arrangement gives .
excellent results. Overlapping joints l4,-may `be `
, 2. A building wall construction comprising sup
porting members, and porous plaster receiving
material secured thereto with their rear faces
coated with metallic vapor-proofing material. the 45
plaster receiving faces coated with waterproofing
material, and the joints of face material locked
against opening by applied plastering pressure.
3. A building wall construction comprising sup
porting members, and slabs of plaster-receiving
material secured thereto with their rear faces
substantially completely covered with thin foil
vapor-proofing material and facing hollow wall
spaces between the supporting members', the
plaster-receiving faces coated with `water-proof- f
ing material, and the joints locked against open
ing during plastering.
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