Static structures (e.g. – buildings) – Log wall-type construction
Patent
1993-11-22
1995-07-11
Friedman, Carl D.
Static structures (e.g., buildings)
Log wall-type construction
4034051, 52562, 52564, 52570, E04B 138
Patent
active
054309832
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a fitting and to a method for erecting and joining together the inner and the outer walls of a timber building structure, said walls consisting of horizontal tongue-and-grooved boarding or panels.
Originally, timber buildings were constructed from corner-tied or dovetailed solid timber. One drawback with this method of construction resides in the large amount of wood consumed and, because wood is a relatively poor insulating material (wood has a low k-value), also in poor insulation of the building.
One method of solving the problem of insulation is to nail battens onto the inner surface of the corner-tied solid or whole timber and to pack mineral wool between the battens, therewith insulating the structure in a conventional manner. A diffusion barrier and internal panels are then secured to the battens.
Another method of constructing insulated timber buildings is to nail wooden panels onto a so-called stud structure, both internally and externally, and pack mineral-wool insulation in the cavity between the panels or boarding. So that the building will resemble a genuine log building, artificial corner-ties are attached to the building when practicing this method.
Another method of constructing insulated timber buildings involves screwing internal wooden panels onto studwork with the aid of some kind of angular fitting. The space or cavity between the inner panels and the outer wall is then insulated with mineral wool. These known methods of constructing insulated timber buildings have the drawbacks of requiring the provision of studwork, i.e. horizontal and vertical support members, and that nailing of the panels takes a relatively long time to complete and results in the generation of stresses as a result of differences in expansion of the inner and the outer walls, due to differences in outdoor and indoor humidities.
SUMMARY
The aforesaid problems are solved with the use of the inventive fitting when erecting and joining the inner and the outer walls respectively of a timber building structure, said walls comprising horizontal, tongue-and-grooved panels or boards. The internal and external tongue-and-grooved "timber panels" forming the walls are joined together with the aid of the inventive fitting in a manner to leave a gap between the inner and the outer wall. This gap, or cavity, between the inner and the outer panels is then insulated with the aid of an appropriate insulating material, for instance cellulose fibre. Because the fitting comprises two parts which are able to slide vertically in relation to one another when the fitting is fitted to a wall, two free-standing walls are obtained, i.e. the inner and the outer walls respectively are able to expand transversely to the fibre direction of the wood, independently of one another. This is achieved with the aid of a fitting having the characteristic features set forth in Claim 1, and by means of the method defined in Claim 9.
BRIEF DESCRIPTION OF THE DRAWINGS
The inventive fitting will now be described in more detail with reference to the accompanying drawings, in which
FIG. 1 is a side view of a first embodiment of the inventive fitting;
FIG. 2 is a top view of the fitting shown in FIG. 1;
FIG. 3 is a cross-sectional view of the fitting shown in FIG. 1 when the fitting is mounted;
FIG. 4 is a cross-sectional view of a "timber wall" which is secured with the aid of the fitting shown in FIG. 1;
FIG. 5 is a side view (partial cross-sectional view) of another embodiment of the inventive fitting;
FIG. 6 is a top view of the fitting illustrated in FIG. 5;
FIG. 7 illustrates the position at which the inventive fitting is fitted to a wall with spring-loading so that a load or force will act continuously in the wall independently of any external load;
FIG. 8 is a cross-sectional view of walls to which corner-ties have been attached with the aid of the inventive fitting;
FIG. 9 is an external side-view of the corner-tie shown in FIG. 8; and
FIG. 10 illustrates a slide strip for the windows
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Friedman Carl D.
Wood Wynn E.
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