Building constructions using beams and related method

Information

  • Patent Grant
  • 6263636
  • Patent Number
    6,263,636
  • Date Filed
    Tuesday, February 17, 1998
    27 years ago
  • Date Issued
    Tuesday, July 24, 2001
    23 years ago
  • Inventors
  • Examiners
    • Canfield; Robert
    Agents
    • Hathaway; Todd N.
Abstract
A floor, wall, roof, or ceiling of a building is made of specially adapted beams and overlying panels. The beams have a layer of foam material on their edges. The foam material can include a resiliently compressible material, a thermally insulating material, or a material which possesses both of these properties. The panels are positioned over the beams so that the foam material is sandwiched between the beams and the panels. When the panels are fastened to the beams, the resiliently compressible foam material partially compresses, thereby filling any gaps which may form between the beams and the panels. The resiliently compressible foam material thus prevents relative movement between the panel and the beams which would otherwise produce squeaks. When the foam material includes thermal insulating material, it forms a thermal barrier between panels and beams, especially metal beams, thereby eliminating various drawbacks of construction using metal beams.
Description




FIELD OF THE INVENTION




The present invention relates generally to the construction of buildings using beams, such as wall studs, floor joists, and ceiling rafters, and, more particularly, to a method for constructing such structures with a layer of foam material positioned between the beams and overlying panels. The studs, joists and rafters may be made of wood or metal.




BACKGROUND OF THE INVENTION




Buildings are generally constructed with floors, walls, ceilings, or roofs made of beams and panels which overlie or cover the beams. A problem which is encountered in constructing such buildings is the frequent development of squeaks.




In many structures, floors are constructed by installing a series of narrow joists—either metal or wooden—to provide support, and then placing panels of plywood or similar material on top of these. In this type of construction, squeaks often develop where a gap between the joist and the plywood permits the plywood to flex up and down as a person walks across the floor. Because it is usually necessary to remove carpeting and/or a ceiling to get at the source of the problem, repairing such squeaks is usually very expensive.




The conventional measure which has been adopted to combat this problem has been to glue the panels of plywood to the joists. This technique has been marked by only very modest success. For example, in the case of wooden floor joists, as the wood dries out, the warpage frequently becomes so great that the glue line simply breaks and the glue therefore becomes ineffective. Also, because such glues set up within a limited period of time, construction workers must place the panels on the joists almost immediately after the glue has been dispensed, which interferes with flexibility in managing the construction tasks of the projects. Furthermore, in very hot or cold climates, the glue tends to set up quickly, which aggravates this problem. Also, most such glues cannot be used when it is raining. Finally, when the panels are slid into place along the tops of the joists the glue is often scraped off, leaving bare spots where no glue is left to form a bond, making this conventional technique even less effective.




Accordingly, there exists a need for a method of constructing floors which effectively eliminates the development of squeaks. Furthermore, there is a need for such a method which is economical and convenient to practice, and which can be used in a wide range of environmental conditions.




Metal wall studs, floor joists and ceiling rafters, collectively referred to below as metal beams, offer builders and owners many significant economic and other advantages over traditional wooden beams (e.g., 2×4's, 2×10's, etc.). For example, such metal beams tend to be stronger and more resistant to deterioration. As a result, construction using metal beams is becoming increasingly common in both residential and commercial building.




Despite the inherent advantages which metal beams offer, metal construction has exhibited a number of drawbacks in practice. In particular, because the metal beams are highly thermally conductive, they tend to conduct heat away from the siding, flooring, sheet rock, or other panel covering much faster than would corresponding wooden beams; for example, the thermal conductivity of typical steel studs and other metal beams is about 320 btu/ft


2


/hr/° F., as compared to a typical figure of about 120-140 btu/ft


2


/hr/° F. for wood. As a result, “cold spots” are formed on the outer surface of the wail or floor covering, usually in the form of a series of spaced apart lines or bands which correspond to the arrangement of the underlying metallic beams comprising the metal framing. This tendency to conduct heat away from the wall or floor covering is increased by the normal practice of securing the materials together with metal fasteners (for example, screws).




Several additional problems stem from the high thermal conductivity of structures made using metal beams. Firstly, the cold spots cause condensation to form on the panel surface of the structure's exterior; this can often be observed as a series of vertical bands along the side of the structure. This leads to accelerated deterioration of paint or other finishes in these areas, and, also, (especially in cooler climates) fosters the growth of mildew which is both unsightly and difficult to eradicate. In addition, the moisture tends to be drawn into the panel along the metal beam, and will sometimes actually migrate along the metal beam into adjacent wooden supports, resulting in rot problems and, after prolonged exposure to moisture, the metal beams may rust.




Another problem which may develop from the thermal conductivity of metal studs, joists, and rafters is that the thermal integrity of the structure may be severely compromised. Specifically, the metal studs may conduct heat away from the interior of the house and out through panel walls, greatly reducing the house's energy efficiency.




Some attempts have been made to deal with the problems described above by using a metal foil which covers the inner surface of the wall or floor covering. Unfortunately, possibly owing to thermal conductivity of the foil material itself, this solution has generally proven ineffective, and in some cases appears to have actually aggravated the problem, especially by tending to draw moisture more rapidly into the wall. In addition, the foil and the beams generally are made of dissimilar metals. This dissimilarity causes electrolysis to occur between the metal beams and the metal foil, which in turn weakens the metal beam over time. Finally, the cost of the foil material renders this approach prohibitively expensive.




As a result, there exists a need for an effective and economical solution to the problems which are posed by the thermal conductivity of metal frame construction, as these have been described above.




SUMMARY OF INVENTION




The present invention has solved the problems cited above, and, according to one aspect of the invention, comprises a building with floors, walls, roofs, and ceilings from panels attached to beams. At least two of the beams have a layer of foam material on their edges, and each panel covers a substantial longitudinal portion of the two beams while also spanning the beams. The beams can be joists, studs, or rafters, and can be made of metal or wood. The panels typically are far thinner than the beams (panels typically about ¼ inch to 1 inch in thickness and beams at least 1.5 inches thick) and usually come in 4 by 8 foot sheets. In a preferred embodiment, the panel will have both a width and a length in excess of the spacing of the beams.




The foam material according to another aspect of the invention, includes a resiliently compressible material. The foam material can also be formed into an adhesive tape with a slick, non-adhesive outer layer which faces out from the beam when the tape is adhered to the beam's edge.




According to still another aspect of the invention, the foam material comprises a thermally insulating material which forms a thermal barrier between the panels and the beams on which the insulating material is disposed.




Yet another aspect of the invention is a specially adapted beam which includes the foam material on an edge of the beam.




According to still another aspect of the invention, a plurality of the above described beams are assembled into frame structures for walls, floors, ceilings, or roofs, with the layer of foam material disposed on predetermined edges of the frame structure in accordance with the particular usage contemplated for the frame structure at the job site.




Another aspect of the invention involves a method of constructing floors, walls, ceilings, or roofs of buildings. The method includes the steps of installing a plurality of beams, depositing the foam material onto the edges of at least two of the beams, and covering a substantial longitudinal portion of the two beams with one or more panels. The panels also span the beams generally perpendicularly to the longitudinal direction of the beams.




Another aspect of the present invention is a method of eliminating squeaks in a floor by depositing a resiliently compressible material on at least two joists and covering the joists with panels which span the joists and cover a substantial longitudinal portion of the joists. Fasteners are driven through the panel, through the resiliently compressible material, and into the joists, thereby partially compressing the compressible material and preventing any movement of the panels relative to the joists which might cause squeaks.




Yet another aspect of the present invention is a method of attaching a panel to a metal beam by depositing a thermally insulating material on the metal beam and mounting the panel to the beam to sandwich the insulating material between the beam and the panel. A thermal barrier is thus formed between the panel and the beam.




Further, objects and advantages of the invention in addition to those described above will be understood by a reading of the detailed description of the invention and a review of the accompanying drawings.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view showing a portion of a building, such as the frame structure of a wall, built in accordance with an aspect of the present invention;





FIG. 2

is a perspective view showing a larger portion of the building of

FIG. 1

built in accordance with the present invention;





FIG. 3

is a perspective view showing the construction of the wall of

FIGS. 1 and 2

;





FIG. 4

is a cross-sectional view of the wall of

FIGS. 1-3

;





FIG. 5

is an enlarged perspective view of a section of a beam of the present invention;





FIGS. 6A and 6B

are perspective views showing the formation of the beam of

FIG. 5

;





FIGS. 7 and 8

are perspective views of a portion of another frame structure, such as a floor, built in accordance with another aspect of the present invention;





FIG. 9

is a plan view showing the floor of

FIGS. 7 and 8

;





FIG. 10

is an end view of the floor of

FIG. 9

;





FIG. 11

is a perspective view showing a method of constructing another frame structure in accordance with the present invention;





FIG. 12

is a perspective view of a portion of the structure of

FIG. 11

;





FIG. 13

is a perspective view of the frame structure of another wall embodying the present invention;





FIG. 14

is a cross-sectional view taken along line


14





14


of

FIG. 11

; and





FIG. 15

is an elevational, somewhat schematic view, showing the depositation of a material in a fluid state on an edge of a beam so as to produce a semi-solid foam end product thereon.











DETAILED DESCRIPTION




a. Overview




As shown in

FIGS. 1 and 2

, a frame structure, such as a wall


21


, built in accordance with the present invention, includes a series of metal beams


16


, which act as wall studs. The metal beams


16


are attached to a rim joist


17


or other suitable support. The metal beams


16


are generally rectangular in cross section, and have vertically extending outer faces


19


. A panel


26


(FIG.


2


), such as a sheet of wallboard


22


, is secured to the outer faces


19


of the beams


16


.




A foam material


22


is disposed on the outer faces


19


of the metal beams


16


. As will be described in greater detail below, the foam material


22


may be a thermally insulating material, a resiliently compressible material, or a material exhibiting both properties simultaneously, depending on the particular requirements of the building. Polyvinyl chloride, polyethylene, or rubber foam are suitable for the material


22


and exhibit both superior thermal insulation and resilient compressibility properties.




The foam material


22


is formed into a strip of tape


20


. The bottom surface of the tape


20


is provided with a layer of adhesive by which the tape


20


is affixed to the outer face


19


of the beam


16


, and the top of the tape


20


is preferably provided with a slick, tough, non-adhesive top layer


24


, which may suitably be formed of Mylar™ or other slick, tough, nonadhesive material.




The panel


26


(

FIG. 2

) has portions which overlie the metal beams


16


so that the tape


20


is sandwiched between the beams


16


and the overlying portions of the panel


26


. The slick, non-adhesive top layer


24


of the tape


20


permits the panel


26


to be slid back and forth into position. Fasteners


28


, such as screws, are then driven through the panel


26


and into the beams


16


so as to secure the panel of wallboard


26


in place, as can be seen in FIG.


3


. Additional panels (not shown) are attached in a similar manner and adjacent to the panel


26


to overlie the beams


16


and form the wall


21


.




Each of such panels


26


are sufficiently wide and long to span a plurality of beams while covering a substantial longitudinal portion of the beams. For example, currently, standard panels are 4 feet wide by 8 feet long and will therefore cover either 4 or 7 beams laid on 6-inch centers while extending along respectively 8 feet or 4 feet of the longitudinal portions of the beams. Such panels, when cut down from 4×8 feet panels or otherwise obtained, are always substantially longer and wider than the width or thickness of the beams


16


, whether the beams are joists, studs, or rafters.




As the panel


26


is attached to the beam


16


, the tape


20


is partially compressed so as to fill any irregularities and gaps between the studs


16


and the portions of the wallboard


26


overlying the studs


16


, as shown in

FIG. 4

, so as to provide a continuous, insulating layer between the two. Because of its insulating qualities, the tape


20


serves as a thermal break which interrupts the conductive contact between the beams


16


and the overlying portions of the panel


26


. Since this prevents heat from being conducted away from the panel


26


and through the studs


16


, the formation of “cold spots” is virtually eliminated. This, in turn, eliminates condensation which has led to the problems described above.




The tape


20


also serves functions in addition to providing a thermal break, depending on the nature of the structure in which it is used. In particular, when used in the construction of a floor


50


, as shown in

FIGS. 7-10

, tape


60


includes the same foam material


22


described with reference to the tape


20


. The foam material comprises a resiliently compressible material which compensates for or “smooths out” irregularities and discontinuities between joists


52


and overlying panels


66


of plywood flooring. This usage of the tape


60


eliminates any gaps which would otherwise permit the panels


66


to work up and down and cause squeaks.




b. Insulating Material





FIG. 5

shows a short segment of the tape


20


adhered to a section of the beam


16


, and illustrates, in enlarged detail, the various layers of material of which the tape


20


is composed. The tape


20


includes a layer of foam material


22


which exhibits superior thermal insulation qualities and adequate product life for permanent installation in a structure. The material


22


is sufficiently soft and thick that it resiliently compresses between the beam


16


and the overlying portion of the panel


26


of wallboard or other covering (

FIGS. 2 and 4

) so as to fill any gaps, but without being so severely compressed as to lose its insulating qualities.




Thus, as shown in

FIG. 4

, when the panel


26


is installed using fasteners


28


, the foam material


22


compresses to a certain degree, for example, down to about 50% of its original thickness However, even when partially compressed, it retains the ability to provide a thermal break and the resilience necessary to fill any gaps between the two members. The foam material


22


also inhibits passage of moisture, and thereby reduces any potential for rust on the metal beams


16


which may form after prolonged periods of exposure to moisture.




Polyvinyl chloride (PVC) foam, closed-cell polyethylene foam, and rubber foam have proven to be eminently suitable materials for the foam material


22


in the present invention. Unlike conventional glue, these materials retain their resilience indefinitely, with the service life of these materials being roughly equivalent to that of the structure itself. Moreover, they exhibit excellent thermal insulation qualities; for example, the conductivity of a ⅛″ thick layer of the PVC foam material is about 2.24 btu/ft


2


/hr/° F., as compared to 320 btu/ft


2


/hr/° F. for uninsulated metal.




The thickness of the foam material


22


will vary somewhat depending on the softness and insulating qualities of its constituent material, as well as the size of the gaps between the beams


16


and the corresponding paneling


26


which the material


22


will be expected to fill. When using the PVC or polyethylene materials described above, suitable uncompressed thicknesses for the material


22


have been found to range to about 1″ thick maximum, with about {fraction (1/16)}″ to ⅛″ being preferred.




The width of the tape


20


, in turn, preferably corresponds generally to the width of the edge of the beam


16


on which it is to be installed; for standard metal studs used in residential construction, a width of about 1 {fraction (7/16)}″ is suitable, whereas a width of about 3¼″ is suitable for the wider joists


52


common in the flooring


50


(FIGS.


7


-


10


). In addition to the above-described width the tape can be any width required for the particular application.




The tape


20


has an adhesive bottom surface


28


(

FIG. 5

) which impregnated or coated with a suitable adhesive material, such as a rubber-based pressure sensitive adhesive. The adhesive material facilitates the laying the strips of the tape


20


on the beams


16


and acts to hold the strips in place while the paneling


26


(FIG.


2


),


6


(

FIG. 8

) is being installed. The adhesive is preferably sufficient soft and sticky to adhere to the beam


16


(

FIG. 5

) even if it is somewhat damp. The density of the adhesive can be adjusted somewhat depending on the desired characteristics and intended use of the material; for example, higher adhesive densities may be preferred where it is to be applied to relatively wet or rough surfaces, while lower densities may be preferred where it is desired to make it easier to peel the tape


20


when it is stored in a roll (see FIGS.


6


A & B). Also, in some embodiments, it may be preferable to encapsulate at least a portion of the adhesive material in closed cells with the foam layer


22


of the tape


20


, such cells being configured to rupture under the pressure which is applied as the tape


20


is press against the beam


16


during installation, releasing the adhesive so that this will permeate the interface between the beam


16


and the foam layer


22


.




The tape


20


includes a non-adhesive top layer


24


disposed on top of the foam material


22


. The top layer


24


both facilitates the unwinding of the tape


20


when it is rolled up (

FIGS. 6A and 6B

) and enables the builder to slide the panels


26


,


66


of wallboard or plywood (

FIGS. 2-4

and


7


-


10


, respectively) over the top layer


24


during installation. This non-adhesive top layer


24


is preferably tough and slick so as to further facilitate the sliding of the paneling


26


over the top layer


24


without damaging the tape


20


,


60


. A suitable top layer


24


may be a thin (e.g. 1-4 mil) polyester liner such as a Mylar™ film which is mounted to the underlying foam


22


with a thin layer of adhesive. Alternatively, the non-adhesive top layer


24


may comprise a release paper, or may be formed by heat sealing the upper surface of the foam material


22


or creating a suitably smooth surface integral to the foam material


22


.




Since the non-adhesive top layer


24


contacts overlying portions of the panels of wallboard


26


(

FIGS. 1 and 2

) and of flooring


66


(FIG.


8


), it is understood that, for most applications, it is not necessary for the tape


20


,


60


to hold the panels of wallboard


26


(

FIG. 2

) or flooring


66


(

FIG. 8

) in place In addition, because the top layer


24


is non-adhesive, personnel can handle the beams


16


, whether they be studs, joists or rafters, after the insulating tape


20


has been laid thereon. In the case of the joists


52


(FIGS.


7


and


8


), personnel can even walk about on top of the joists


52


where the tape


20


,


60


has been installed (see FIG.


11


). Moreover, personnel can slide the panel


26


over the top layer


24


and into place without the panels


26


,


66


catching on the tape


20


,


60


and damaging it. Use of the tape


20


,


60


also eliminates the problem of excessively quick set-up times which are experienced with conventional glues. In addition, the application of the tape


20


,


60


, as opposed to the application of glue, can be separated in time from installation of the overlying panels or can be done in small blocks of time. The tape


20


,


60


is not affected by any inclement weather which may intervene between the time of tape application and placement of the overlying panels. In light of the above, use of the tape


20


,


60


improves work efficiency since the construction with beams and panels using the tape


20


,


60


does not require large blocks of time to be schedule; but rather can be accomplished at the ends of working days or by intermittently spacing the work between other projects.




c. Installation





FIGS. 6A and 6B

illustrate two preferred methods by which, in accordance with the present invention, the insulating tape


20


can be applied to a beam


116


. The beam


116


may be a component o any frame structure of a building constructed of beams, such as floor, wall, ceiling, or roof. The beam


116


thus may be a stud, joist, or rafter.




In the method which is shown in

FIG. 6A

, the tape


20


is reverse wound on a roll or spool


32


so that the adhesive side


3


of the tape


20


faces outwardly therefrom. Consequently, as the spool


32


is rolled along the underlying surface


119


of the bea


116


, the adhesive side


30


of the tape adheres to it so that the tape


20


unrolls from the spool


32


, leaving the non-adhesive side


24


exposed and facing upwardly from the beam


116


.





FIG. 6A

shows an operator


34


laying a strip of the tape


20


on the beam


116


prior to the beam


116


being installed into a frame structure. This technique is particularly advantageous wherever building conditions, project schedules, or other factors render it preferable to lay the tape


20


on the beam


116


prior to it being put into the building structure. To do this, the operator places the beam


116


on a suitable support, such as saw horses


38




a


,


38




b


, and then grasps the spool


32


and rolls it along in the direction indicated by arrow


40


so as to lay the strip of tape


20


on the upper edge


119


of the beam


116


. The spool


32


has a peripheral channel


33


formed between flanges


35


. The channel


33


is sized to receive the edge


119


of the beam


116


and thus helps to guide the spool


32


as it is rolled along the beam


116


. The beam


116


can then be lifted or otherwise transported to the installation site.





FIG. 6B

, in turn, shows a hand-operated tool


42


which can be used to apply the adhesive insulating tape


20


in accordance with another aspect of the present invention. The tool is similar to that described in U. S. Pat. No. 5,254,203. The tool


42


comprises a spool portion


44


which is mounted part way up along handle portion


46


. The spool portion


44


is provided with a central hub


48


which rotates about an axle


50


perpendicular to the handle portion


46


. The spool portion


44


contains a roll


32


of the adhesive cushioning tape


20


which is wound with the adhesive side facing inwardly.




Preferably, the handle portion


46


may be about 2′ in length, with a length of 22″ being an excellent compromise in terms of both handling ease and packaging convenience (when using standard 24″ boxes). Tubular metal conduit of ¾″ has been found to be eminently suitable for forming the handle


46


, from the standpoint of cost, weight, and ease of fabrication. The upper end of the handle portion


46


is bent slightly rearwardly (e.g., about 10°-20°) from the lower portion to provide a more horizontal portion which can be conveniently held by a standing operator, and this is preferably provided with a hand grip


52


.




The lower end of the handle


46


, in turn, is provided with an adjustable guide roller assembly


54


which presses the tape


20


against the edge


55


of the beam


16


so that it firmly adheres to the upper surface


119


. The tape


20


is fed off the rearward side of the spool and led downwardly and under the guide roller assembly


54


. Thus, as the tape


20


passes under the roller assembly


54


, it is pressed against the upper surface


119


of the beam


116


by pressure which is exerted through the handle portion


46


of the tool


42


in the direction indicated by arrow


56


.




The guide roller assembly


54


includes two compound sidewall assemblies


58




a


,


58




b


which form a channel for receiving both the upper surface


119


of the beam


116


and the strip of tape


20


which is unrolled from the spool portion


44


. Each of the compound sidewalls


58




a-b


is made up of a plurality of plate-like elements which are individually displaceable in an upward direction by rotation about the axle of the assembly


54


, so as to be able to adjust the channel width to match that of the upper surface


119


of the beam


116


. The plate elements are then locked in place by means of a wing nut


60


on the end of the axle. The guide roller assembly also includes a cutter


62


which is employed to cut the tape


20


after a predetermined amount, known as “a run” has been laid on the upper surface


119


of the beam


116


.




The techniques which have been described are particularly suited to installation of the insulating tape


20


in a field environment, such as a job site. There is, however, an increasing trend towards factory fabrication of: the beams


16


, such as joists, studs, and rafters; pre-assembled frame structures


23


(FIG.


2


); and even complete walls, and other modular building components. The present invention is suitable for practice in such contexts as well. The beams


16


, or even an entire frame structure


23


(FIG.


2


), may be delivered to the job site ready to use, with the tape


20


already adhered to the edges of the beams


16


or predetermined edges of the frame structure


23


as seen in

FIGS. 2 and 7

, respectively.




In addition, the tape


20


can be applied using high-speed mechanized or automated systems in place of the manual approaches described above. Such systems may include mechanized applicators and rollers, and cartridge or continuous tape feed. Moreover, such systems may include suitable computerized controls which may be integrated with controls for the construction of the structural beam itself.




Still further, it may be advantageous in some embodiments to dispense with the use of the tape


20


and apply the foam material


22


to the beams by other means. For example,

FIG. 15

shows the material being deposited on the edge


19


of the beam


16


in a fluid or semi-fluid state, as indicated at


23


, such as by a foamed-in-place system where the fluid constituents react to produce a semi-solid foam end product. As yet another alternate, instead of strips of the tape


20


, the material


22


can be placed on the beam


16


by cutting a strip directly from a layer sheet of insulating material. It should also be noted that many of these techniques, although particularly adapted to factory operations, may find applications in a field environment as well.




d. Flooring Systems




The present invention presents many advantages not only in the construction of walls, but also in the construction of floors, ceilings, roofs, and other frame structures, particularly where these serve to separate areas of differing temperatures.





FIGS. 7-10

illustrate the present invention as applied to construction of another type of frame structure, namely, a floor


50


. Floor


50


includes a plurality of metal joists


52


, which are a particular type of the beams


16


described above with reference to

FIGS. 1 and 2

. The joists


52


extend in a horizontal direction with a planar load-bearing surface


54


facing in an upward direction. Such metal joists


52


can be sized similar to their conventional wooden counterparts (e.g., 2×12's), or may have much wider upper load-bearing surfaces (e.g., 3¼ inches wide or more), the latter being commonly referred to in the industry as “space joists.” The joists


52


are arranged in generally parallel, laterally spaced relation to each other and are supported across their ends by a metal or wooden header


56


. On either side of the metal joists


52


are rim joists


57


.




In this embodiment, the floor


50


includes insulating tape


60


in strips laid upon the upper, load-bearing surfaces


54


of the metal joists


52


. The tape


60


is formed using materials and a structure similar or identical to the tape


20


. However, the width of the tape


60


may vary from the width of tape


20


since the upper surface


54


of the joist


52


may be different from that of the beams


16


. So, for example, the tape


20


that is used on the narrower beams


16


, such as studs, may be narrower than the tape


60


which is used on wider beams, such as the joists


52


. To enhance both the effectiveness of the insulating tape


60


as applied to the joists


52


and to provide a flat, continuous surface for overlying subfloor panel


66


, strips


62


,


64


of the tape


60


may preferably be laid on the upper edges of the headers


56


and the rim joists


57


as well.




After the strips of the tape


60


have been laid down, panels


66


of plywood or other subfloor panel material are placed on top of the tape


20


, as shown in FIG.


8


. The tough, slick, non-adhesive covering


24


of the tape


66


permits the panels


66


to be slid along and across surfaces of the joists


56


to the desired position without damaging the tape


60


. Also, workers can walk about on the joists


52


without damaging the resiliently compressible material


22


(

FIG. 5

) underneath the covering


24


. Preferably, as is shown in

FIG. 9

, the panels


66


are positioned so that their edges meet over the load-bearing top surfaces


54


of the joists


52


and are supported thereby. Since the panels


66


are not glued to the joists


52


, they can be rearranged atop the joists


52


for optimum fit.




Finally, as is shown in

FIGS. 9 and 10

, the panels


66


are secured in place by means of fasteners


68


, which are driven through the panels


66


and into the upper surfaces


54


of the joists


52


.




The tape


60


is sandwiched between the floor joists


52


and the panels of subflooring


66


. As discussed above with reference to

FIGS. 1 and 2

, this layer provides thermal insulation between the joists


52


and the panels


66


. The tape


60


, since it is made of the foam material


22


(

FIG. 5

) which is resiliently compressible, also acts to “smooth out” irregularities and discontinuities in the surfaces


54


of the joists


52


and the overlying portions of the panels


66


. In this way, the tape


60


eliminates gaps between the joists


52


and the panels


66


, which gaps would otherwise permit the panels


66


of subflooring to work up and down against the fasteners


68


(

FIG. 9

) and cause squeaks.




e. Wood Construction




Although the present invention has been discussed with reference to the metal joists


52


, the invention also yields many advantages in buildings having floors, walls, ceilings, and roofs, made of wooden beams.




For example,

FIG. 11

shows a floor structure


142


having a generally conventional foundation


144


which supports a series of wooden floor joists


146


joined together at their ends by headers


148


. For residential construction, the joists may typically be 2″×12″ boards or the like, laid on edge. The tape


147


is composed of resiliently compressible material


22


described previously with reference to the tape


20


(FIG.


5


), and is shown being installed using a tool


110


. The tool


110


includes a handle


130


having a spool


112


similar to the spool


32


(

FIG. 6B

) mounted to the lower end of the handle


130


. The operator


140


unrolls a bit of the tape


147


from the spool


112


and places it at the desired point on the joist


146


. The top of the joist


146


is then slipped into the channel between the two flanges of the spool


142


so that the adhesive surface of the tape contacts and adheres to the joist. Then, using the handle


130


, the operator rolls the spool


112


along the top of the joist


146


in the direction indicated by arrow


50


; as this is done, a strip of the tape


147


unrolls from the spool


132


and adheres to the edge of the joist


146


. If desired, the tape


147


can also be laid along the top of the header


148


as shown in FIG.


12


.




The panels


152


which make up the subfloor are then slid over the top surfaces of the joists


146


and into place as described previously with reference to

FIGS. 7-10

. The operator


140


is able to walk about on the non-adhesive, upper surface of the tape


147


while moving the panels


152


into place.

FIG. 14

shows a cross-section through the flooring structure


142


having the cushioning tape


147


installed on the wooden joists


146


. The uneven upper edge of the joists


146


(which may be due to warping or bowing of the joists) produces discontinuities or gaps


156


between the joists


146


and the overlying panel of plywood


152


, which (if let unfilled) would allow the panel of plywood


152


to flex up and down as people walked across it, resulting in squeaks as the plywood rubbed against the shanks of nails


154


. However, since the tape


147


provides a resiliently compressible foam layer when sandwiched between the panel


152


and the joist


146


, the tape


147


fills the gaps


156


so as to prevent the plywood panel


152


from flexing downwardly by an appreciable distance under a person's weight, thus eliminating the vertical movement of the plywood panel


152


which could cause squeaking.




Furthermore, ring nails are a suitable type of fastener


154


used in the floor


142


. When the ring nails are driven through the tape


147


, a portion of the foam material


22


is picked up in the grooves along the shanks of the fasteners


154


; in the unlikely event that the panel


152


lifts beyond the ability of the tape


147


to fill the resulting gap (as, for instance, if the plywood bows due to becoming wet), the “lubricating” affect of the foam material


22


which is retained on the shanks of the fasteners


154


will serve as additional assurance against the development of squeaks.





FIG. 12

shows the optional use of staples


198


to help hold the strips of the adhesive tape


147


on the upper edges of the joists


146


. This may be desirable when conditions are so wet that the adhesive of the tape


147


alone has difficulty holding to the joist


146


, especially when people are walking or sliding the panels of plywood


152


over the adhesive tape


147


. However, it will be appreciated that using the staples


198


to hold the tape


147


in place is only necessary as a supplemental measure, and once the joists


146


are dry, the adhesive of the tape


147


preferably will adhere to the joists


146


so as to permanently hold the tape


147


in position.





FIG. 13

illustrates the use of the present invention in the construction of a vertically extending wall structure


200


constructed using wooden studs


202


. Apart from its vertical orientation, the configuration of this construction is similar to the floor structure


142


seen in FIG.


11


. Strips of adhesive tape


204


formed of resiliently compressible, thermally insulating, foam material are laid on the edges of the studs


202


(using techniques substantially similar to those described above) , and then a suitable panel


206


, such as wall covering, plywood or panel rock, is installed over the studs


202


using nails


208


or other suitable fasteners.




In frame structures such as the vertically extending wall structure


200


, it is possible to provide the outwardly facing surface of the tape


204


with a certain degree of adhesiveness or “tackiness” which helps hold the panel


206


against the tape


204


and the studs


202


. Typically, the panel


206


is mounted to the studs


202


by fasteners


208


, such as screws, installed using an automatic screwdriver. As the fasteners


208


are installed, the resiliently compressible foam material of the tape


204


is partially compressed as discussed previously to provide a “filler” for any gaps that might otherwise occur between the paneling


206


and the studs


202


, while still providing thermal insulation between the two.




Having described the invention in its preferred embodiments, it will be clear that numerous changes and modifications may be made without departing from the spirit of the invention. It is therefore not intended that the words used to describe the invention or the drawings illustrating the same be limiting on the invention, but rather that the invention be limited only by the scope of the appended claims.



Claims
  • 1. A method of forming a specially adapted beam for use with panels to construct walls, floors, ceilings or roofs, said method comprising the steps of:providing a conventional beam having an exposed edge; and depositing a layer of foam material on said edge of said beam in a fluid state so that constituents thereof react to form a semi-solid, resiliently compressible foam end product having a substantially non-adhesive top layer for subsequent installation of a panel thereover.
  • 2. The method of claim 1, wherein the step of depositing said layer of foam material on said edge of said beam comprises the step of:producing said foam material through a reaction of the constituents thereof.
  • 3. The method of claim 1, wherein said beam is formed of a metal material.
Parent Case Info

This is a continuation of application Ser. No. 08/309,753, filed Sep. 21, 1994, now U.S. Pat. No. 5,718,092, which is a continuation-in-part application of application Ser No. 08/076,274, filed Jun. 11, 1993, now U.S. Pat. No. 5,403,414, which is a continuation of application Ser No. 07/761,686, filed Sep. 18, 1991, now abandoned.

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Continuations (2)
Number Date Country
Parent 08/309753 Sep 1994 US
Child 09/024366 US
Parent 07/761686 Sep 1991 US
Child 08/076274 US
Continuation in Parts (1)
Number Date Country
Parent 08/076274 Jun 1993 US
Child 08/309753 US