A CONSTRUCTION SYSTEM FOR WALLS ABOVE GROUND LEVEL

SYSTEME DE CONSTRUCTION POUR PAROIS SITUEES AU-DESSUS DU NIVEAU DU SOL

English Abstract

The invention relates to a construction system (101) for walls (102) situated above the ground and that comprise thermal insulation having an applied surface layer (105). According to the invention, an inner insulating panel (103), which is carried on the wall, has a thermal insulating function as well as a draining function. A surface layer in the form of render forms an external surface layer (105) outside said inner insulating panel (103).

French Abstract

La présente invention concerne un système de construction (101) pour des murs (102) situés au-dessus du niveau du sol et comprenant une isolation thermique présentant une surface appliquée (105). Selon l'invention, un panneau isolant intérieur (103) qui est porté sur la paroi assure une fonction d'isolation thermique ainsi qu'une fonction de drainage. Une surface sous forme d'enduit constitue une surface extérieure (105) à l'extérieur dudit panneau isolant intérieur (103).

Claims

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CLAIMS
1. Construction system (1; 101) for walls (2;
102) situated above the ground and that comprises thermal
insulation having an applied surface layer (5; 105), char-
acterized in that an inner insulating panel (3; 103),
which is carried on the wall, has a thermal insulating
function as well as a draining function internally in said
combined thermally insulating and draining inner insulat-
ing panel (3; 103), and that a surface layer (5; 105 and
17; 117, respectively) in the form of render forms an ex-
ternal surface layer outside said inner insulating panel
(3; 103).
2. Construction system (1; 101) according to
claim 1, characterized in that said inner insulating panel
(3, 103) is formed of cellular plastic material.
3. Construction system (1; 101) according to
any one of the preceding claims, characterized in that a
further carried insulating panel (106) situated outside
the combined thermally insulating and draining inner insu-
lating panel (3; 103) has a thermally insulating function.
4. Construction system (1; 101), according to
claim 3, characterized in that said thermal insulating
panel (106) situated outside said inner combined insulat-
ing and draining insulating panel (103) is formed of cel-
lular plastic material.

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5. Construction system (1; 101) according to
any one of the preceding claims, characterized in that the
first inner insulating panel (3; 103) is pasted to a sub-
structure (8; 108) and/or the frame (11; 111).
6. Construction system (1; 101) according to
any one of the preceding claims, characterized in that the
second outer insulating panel (106) is pasted to a sub-
structure.
7. Construction system (1; 101) according to
any one of the preceding claims, characterized in that the
second outer insulating panel (106) is pasted (110) di-
rectly onto the first inner combined insulation and drain-
age panel (103).
8. Construction system (1; 101) according to
any one of the preceding claims, characterized in that re-
inforcement (4; 104) is laid in the scratch coat surface
layer (5; 105) of the wall (2; 102), said outer insulating
panel (106) being ground so as to be well cleaned and
smooth before reinforcement and scratch coating.
9. Construction system (1; 101) according to
claim 8, characterized in that the render reinforcement is
formed of fibreglass (4; 104).
10. Construction system (1; 101) according to
any one of the preceding claims, characterized in that,
internally of the first inner insulating/drainage panel
(3; 103), stiffening panels (16; 116) are attached.

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11. Construction system (1; 101) according to
any one of the preceding claims, characterized in that
seal foam is filled into gaps and between positions of
faults in said insulating panels (3; 103, 106).
12. Construction system (1; 101) according to
any one of the preceding claims, characterized in that
said inner insulating panel (3; 103) is carried on the
frame (11; 111) of the wall.

Description

CA 02791374 2012-08-28
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A CONSTRUCTION SYSTEM FOR WALLS ABOVE GROUND LEVEL
The present invention relates to a con-
struction system for walls situated above the ground and
that comprise thermal insulation having an applied surface
layer.
Known construction systems of the type
mentioned comprise insulation having an air gap between
the insulation and the external masonry, or else the insu-
lation is moisture resistant and does not come off through
moisture, or that drainage grooves are arranged along one
side surface of insulation panels. Furthermore, thermally
insulating drainage panels may be present but that are not
formed of cellular plastic material and that are not suit-
able to be used for rendering.
The main object of the present invention
is therefore primarily to provide a construction system
that, among other things, solves the above-mentioned dis-
advantages and that allows reliable and efficient con-
struction of walls having external rendering on the wall.
Said object is achieved by a construction
system according to the present invention that essentially
is characterized in that an inner insulating panel, which
is carried on the wall, has a thermal insulating function
as well as a draining function internally in said combined
thermally insulating and draining inner insulating panel,
and that a surface layer in the form of render forms an
external surface layer outside said inner insulating
panel.

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The invention is described below in the
form of a couple of preferred embodiment examples, refer-
ence being made to the accompanying drawings, in which
Figs. 1 and 1A show a first example of a
construction system according to the invention, and
Figs. 2 and 2A show a second embodiment
example of a construction system according to the inven-
tion.
By WO 2009/040376 Al, a wall (300) of a
passive building is previously known and that comprises
insulating panels (304, 306) that are separated from each
other by means of a waterproof and vapour proof barrier
(305).
According to the disclosure, Figs. 17-18
in said WO 2009/040376 Al and Fig. 3 therein, in that con-
nection it is possible to omit the insulation (306, 304)
on either the inside (302) or the outside (301) of this
waterproof and vapour proof barrier (305). Furthermore,
the outer insulation (304) and the inner insulation (306)
may have a thickness of between 1 and 600 mm.
Said waterproof and vapour proof barrier
(305) may consist of many different materials, for in-
stance steel, aluminium or other metal materials, wood,
plastic, glass fibre or a combination thereof, but most
preferably of steel.
An essential function of a building wall
is that the wall is thermally insulated to save energy in
heating occasions for the building in question.
A further essential function is that the
building wall has a draining function to prevent moisture
from entering into the building in question.
According to said known WO 2009/040376 Al,
if outer thermal insulation (304) is omitted and said wa-

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terproof and vapour proof barrier (305) is allowed to con-
sist of, e.g., wood, such a wall will not be good for the
building in question if moisture enters through the outer
wall to said barrier (305). Then, the wall should become
as a sponge that sucks up moisture.
According to the present invention, said
problems are solved by there being arranged a thermal in-
sulation and by this insulation in addition having a
draining function thanks to it being formed of a combined
thermally insulating and draining inner insulating panel
3; 103.
The invention is an air barrier and a
weatherproofing of facades of a second layer. As a weath-
erproofing of a second layer, it also protects against at-
tacks by the elements during the construction process. By
the invention as a frame protecting air barrier, the risk
of condensate in the wall structure is minimized. The air
barrier consists of a plurality of components that are ap-
plied continuously and unbroken to the outside of the
structure and at connecting pieces and lead-throughs. The
construction process should be carried out professionally
in such an order that it is possible to guarantee the con-
tinuity and long-term durability of the air barrier.
The function as air barrier should not be
confused with vapour barrier/vapour retarder such as,
e.g., internal PE film. A vapour barrier should be located
on the warm side of the wall structure. If a vapour bar-
rier is not used, the wall structure and ventilation have
to be adapted in the moisture dimensioning.
The embodiment example shown in Fig. 1 in
the form of a perspective view of a wall 2 according to
the invention, comprising an inner insulating panel that
has a thermal insulating function as well as a draining

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function internally in the same, and in Fig. 1A in the
form of a cross-sectional view, differs from the wall 202
shown in Fig. 2 in the form of a perspective view and in
Fig. 2A in the form of a cross-sectional view by this fur-
ther shown wall 102 comprising a further carried insulat-
ing panel 106 that is situated outside the combined ther-
mally insulating and draining inner insulating panel 103
and has a thermal insulating function.
A construction system 1; 101 according to
the present invention, which is intended to be used for
walls 2; 202 that are situated above the ground and that
comprise thermal insulation having an applied surface
layer, comprises an inner insulating panel 3; 103 in the
wall 2; 202, and which is carried on the wall and prefera-
bly on the proper frame 11; 111 of the wall and has a
thermal insulating function as well as a draining func-
tion, internally in said combined thermally insulating and
draining inner insulating panel 3; 103. A surface layer in
the form of an outer fagade layer 5; 105 of render forms
an external primary surface layer outside said inner insu-
lating panel 3; 103. Outside said outer fagade layer of
proper scratch coat 5; 105, there is an outermost layer of
finishing coat 17; 117, which is thin and essentially
lends the wall 2; 202 its intended colour and/or struc-
ture.
Furthermore, the construction system 1;
101 comprises an additional insulating panel 6; 106 car-
ried in the wall 2; 102. Said insulating panel 6; 106 is
carried outside the combined insulating and draining inner
insulating panel 3; 103 and that has thermally insulating
function.
Said inner combined insulating and drain-
ing insulating panel 3; 103 is formed of a suitable cellu-

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lar plastic material, and said insulating panel 106 situ-
ated outside the same is formed of cellular plastic mate-
rial.
Fastening of the first inner combined in-
5 sulating and draining insulating panel 3; 103 takes place
in such a way that it is pasted to a suitable substructure
8; 108 in the form of a frame protection that can breathe.
Also said second external insulating panel 106 is pasted
to a substructure, preferably to said inner combined insu-
lation and drainage panel 103 on the outside 103A thereof
by, e.g., being glued thereon.
In order to reinforce the wall 2; 102, re-
inforcement 4; 104, e.g., glass-fibre fabric, may be laid
in the scratch coat layer 5; 105 of the wall 2; 102, said
outer insulating panel 106 being ground on the outer sur-
face 106A thereof so as to be well cleaned and smooth be-
fore reinforcement and scratch coating.
Inside the first inner insulating/drainage
panel 3; 103, there are attached stiffening panels 16; 116
provided with frame protection 8; 108, to which the inner
insulating panel 3; 103 is attached by pasting by means of
paste 9; 109 applied by a notched trowel, as the outer
panel 106 is pasted by paste 110 applied by a notched
trowel.
Between gaps and possible positions of
faults in said insulating panels 3; 103, 106, seal foam is
filled so that no hollow spaces between the same arise
that can propagate heat/cold and moisture through the wall
2; 102.
Outside said outer fagade layer of proper
scratch coat 5; 105, there is an outermost layer of fin-
ishing coat 17; 117, which is thin and essentially lends
the wall 2; 202 its intended colour and/or structure.

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A thermal insulation in the interior of
the proper wall is designated by the numerals 15 and 115,
respectively, and in the drawings, this insulation 15; 115
is carried by the crossbars 11; 111 of the wall 2; 102 and
accordingly forms the wall frame.
Further, the numerals 16 and 116, respec-
tively, designate a substructure in the form of a board on
said thermal insulation 15; 115. This board 16; 116 is
suitably attached by screws 7; 107 on the crossbars 11;
111.
The nature and function should be under-
stood from what has been described above and shown in the
drawings, but the invention is naturally not limited to
the embodiments described above and shown in the accompa-
nying drawings. Modifications are feasible, particularly
as for the nature of the different parts, or by using an
equivalent technique, without departing from the protec-
tion area of the invention, such as it is defined in the
claims.
Outer surface layers could alternatively
be a suitable paint as a complement to or as a replacement
for the outermost render layer.

Representative Drawing