Structural Element for the Construction of Log Type Houses
The present invention provides a structural element for the construction of log type houses. The structural element comprises structural portions, preferably made of aluminum, and insulating material. The insulation coefficient of the structural element may be adapted to the local climate. Furthermore, the structural element is less sensible to temperature and humidity variations than wood, preventing possible cracks to appear between adjacent structural elements.
The present patent application claims the benefits of priority of commonly assigned Canadian Patent Application No. 2,631,455, entitled “Structural Element for the Construction of Log Type Houses” and filed at the Canadian Intellectual Property Office on May 16, 2008.
FIELD OF THE INVENTIONThe present invention generally relates to structural elements, and more particularly to a structural element for the construction of log type houses.
BACKGROUND OF THE INVENTIONConventional building techniques, featuring, for example, wood frame, precast and/or concrete block construction are relatively complicated and labor intensive. As a result, construction costs continue to escalate.
Traditional log homes remain popular as an alternative to more common building techniques. Nonetheless, wood log construction can also be intricate and time consuming. The individual logs must be precisely cut and shaped. Often a considerable amount of material is wasted in the construction process. The configurations and layouts available using log construction are also quite limited. And because traditional log homes are composed of wood, they are very susceptible to fire damage.
Log homes have been in existence and common use for centuries. Originally, log cabins were built in wooded areas where there was a large supply of wooden logs from trees. Because log homes are still considered versatile, energy efficient structures, many modern improvements have been made to the log home. The majority of the improvements attempt to minimize the amount of labor involved in erecting a log home while improving the overall integrity of the structure.
A problem with the structures disclosed above is that most of them require a great deal of on-site construction and labor. In the areas where log homes are very popular, the weather tends to limit the amount of building time available in a given year. Another disadvantage is that many of those structures do not use real wood logs, but instead use building panels that simulate the appearance of a log home. Therefore, what is needed is a structural element that may be prefabricated and that do not need any special or unusual skills or tools to construct a log house or the like.
OBJECTS OF THE INVENTIONA first object of the present invention is to provide a structural element for the construction of a log house or the like.
A second object of the present invention is to provide a structural element which is prefabricated and inexpensive.
A third object of the present invention is to provide a structural element with which it is easy to construct a log house or the like with no need to use special tool or with no need to have unusual skills.
Other and further objects and advantages of the present invention will be obvious upon an understanding of the illustrative embodiments about to be described or will be indicated in the appended claims, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.
SUMMARY OF THE INVENTIONThe aforesaid and other objectives of the present invention are realized by generally providing an insulated structural element for the construction of log like houses or the like, the structural element having a cross-section, the structural element being adapted to be disposed one on top of another one, the cross-section of the preferred structural element comprising a L-shaped top surface, a L-shaped bottom surface, a first portion extending between the top surface and the bottom surface, a second portion extending between the top surface and the bottom surface and wherein the cavities formed by the top surface, the bottom surface, the first portion and the second portion are filled with an insulating material.
The structural element of the present invention is used to construct walls of log houses or the like. As used herein, the word ‘log’ refers to any structural element having a general configuration which is log like and not limited to logs made of wood. The structural elements are disposed one on top of other as usually seen in log houses. The log like structural element comprises structural portions and insulating material. The insulation coefficient of the structural element of the present invention may be adapted to a plurality of climate by varying the insulation properties of the insulating material. This is a notable advantage compared to logs made from wood, more particularly in extreme climates to control the internal temperature of the log house. Indeed, in colder climates such as in the northern parts of America and Europe, a higher insulation coefficient may be choosen.
Another advantage is that the structural element of the present invention is not as sensible as a wood log to the variations of volume following the variations of temperature and of humidity rates. This minimizes the risk of openings or cracks that appear between adjacent logs thus improving the insulation properties of the log house.
To provide good structural properties to the wall of the log house, internal portions may be added into the structural element. For example, the structural element may further comprises a third portion and a fourth portion extending from the bottom surface and the top surface, the upward extremities of the third portion and the fourth portion being perpendicular to the top surface. Other examples are detailed in the preferred embodiment section and are not limited to these examples. The internal portions are made preferably from the same material as the external portions. External portions are preferably made from aluminum because it is light and easy to shape but other materials may be used. The different portions may be glued together or welded to improve the structural integrity of the structural element.
The insulating material is preferably a foam type so that the structural has good insulating properties and is still light weighted. The foam may be of the expandable foam type such as, for example, urethane. The foam may also be provided in block form, the blocks having a shape that is complementary to the cavities of the structural element and that are inserted into the structural element.
The structural element may be made by folding a metal sheet or by assembling a plurality of portions together. In both case, the structural element may be welded or glued at the junction of different portions. The structural element may also be made by forming a tubular section in which sections may be inserted to improve the structural integrity. The structural element may also be extruded. There are many glues available for metals, and more particularly for aluminum there are glues in the family of, for example, epoxy (ex: Hysol™), polyurethane, acrylic, or silicon.
Problems with thermal bridges can be readily overcome or minimize by using methods known in the art. One example is detailed in the preferred embodiments section.
Because the structural element is constructed, it is possible to create almost any profile, such as rounded-like logs. The structural element may comprise built-in clapboard so the external look of the log house is different from the log house type.
It is also possible to laminate actual wood strips onto the outside of the structural elements to create a wood log appearance.
It is very easy to construct a log house with the structural element of the present invention. There is no need to have the unusual skills or tools usually needed for the construction of log house because the structural elements are ready to use and just have to be installed one on top of the others.
The features of the present invention which are believed to be novel are set forth with particularity in the appended claims.
The above and other objects, features and advantages of the invention will become more readily apparent from the following description, reference being made to the accompanying drawings in which:
A novel structural element will be described hereinafter. Although the invention is described in terms of specific illustrative embodiment(s), it is to be understood that the embodiment(s) described herein are by way of example only and that the scope of the invention is not intended to be limited thereby.
A vertical portion 105 extends between the top surface 120 and the bottom surface 122. A third portion 110 and a fourth portion 112 extend between the top surface 120 and the bottom surface 122, their upward extremities being perpendicular to the top surface 105. The cavities 132, 134, 136 and 138 are filled with an insulating material (not shown).
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While illustrative and presently preferred embodiment(s) of the invention have been described in detail hereinabove, it is to be understood that the inventive concepts may be otherwise variously embodied and employed and that the appended claims are intended to be construed to include such variations except insofar as limited by the prior art.
Claims
1. A structural element for the construction of log like houses or the like, said element comprising:
- a) a shell made of a rigid material; and
- b) insulating material disposed within said shell.
2. A structural element as claimed in claim 1, wherein said shell comprises:
- a) an L-shaped top surface;
- b) an L-shaped bottom surface;
- c) a first portion extending between said top surface and said bottom surface;
- d) a second portion extending between said top surface and said bottom surface.
3. A structural element as claimed in claim 1, further comprising internal reinforcing portions.
4. The structural element as claimed in claim 3, further comprising a vertical portion extending between said top surface and said bottom surface.
5. The structural element as claimed in claim 3, further comprising at least a horizontal portion extending in said structural element.
6. The structural element as claimed in claim 3, further comprising a third portion and a fourth portion extending from said bottom surface and said top surface, the upward extremities of said third portion and said fourth portion being perpendicular to said top surface.
7. The structural element as claimed in claim 1, further comprising strips of wood fixed on said shell.
8. The structural element as claimed in claim 1, further comprising a clapboard portion that is unitary with said structural element.
9. The structural element as claimed in claim 1, further comprising clapboard made of wood.
10. The structural element as claimed in claim 2, wherein said first portion and said second portion are perpendicular to said top surface.
11. The structural element as claimed in claim 2, wherein adjacent extremities of said top surface and said first portion are rounded and tangential to each other.
12. The structural element as claimed in claim 2, wherein adjacent extremities of said top surface and said second portion are rounded and tangential to each other.
13. The structural element as claimed in claim 1, wherein said structural element further comprises at least one transversal notch, said transversal notch having the shape of an inverted ‘V’.
14. The structural element as claimed in claim 9, wherein said structural element further comprises sealing means to seal said at least one notch.
15. The structural element as claimed in claim 1, further comprising means to prevent thermal bridges.
16. The structural element as claimed in claim 15, further comprising at least one elongated part made from a non-conductive material, said at least one elongated part being fixed to said structural element.
17. The structural element as claimed in claim 16, further comprising at least one receiving elongated part made that have a shape complementary to the shape of said elongated part, said at least one receiving elongated part being fixed to said structural element and to said elongated part.
18. The structural element as claimed in claim 2, further comprising an end cap having a complementary shape to the shape of the cross-section of said structural element.
19. The structural element as claimed in claim 1, wherein said shell is made from metal.
20. The structural element as claimed in claim 1, wherein said shell is made from aluminum.
21. The structural element as claimed in claim 1, wherein said insulating material is insulating expandable foam.
Type: Application
Filed: May 15, 2009
Publication Date: Nov 19, 2009
Inventor: Remi Perron (Saguenay)
Application Number: 12/467,076
International Classification: E04B 2/62 (20060101); E04C 3/04 (20060101); E04B 1/68 (20060101); E04B 2/58 (20060101);