US3323268A - V beam construction sheets and fastening means therefor - Google Patents

Description

June 6, 1967 T. B. JOHNSON V BEAM CONSTRUCTION SHEETS AND FASTENING MEANS THEREFOR 2 Sheets-Sheet 1 Filed Feb. 16, 1965 June 6, 1967 T. B. JOHNSON V BEAM CONSTRUCTION SHEETS AND FASTENING MEANS THEREFOR Filed Feb. 16, 1965 2 Sheets-Sheet INVENTOR. 7170mm? 5. Joy/vs o/-/.

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United States Patent 3,323,268 V BEAM EQNST ZUQ'HQN SHEETS AND FASTENING B'EEANS THEREFOR Thomas ll. Johnson, Fires Ave Amhrldge, Pa. 15003 Filed Feb. 16, 1965, tier. No. 433,150 2 (Jlainis. (til. 52-483) ABSTRACT 6F THE DTSCLUSURE Apparatus for connecting a pair of roof sheets. One edge of the sheet has a horizontal portion terminating in a downwardly inclined portion. The other edge of the sheet has an upwardly inclined portion with a downwardly inclined portion adjacent thereto and terminates in a second upwardly inclined portion forming an upwardly facing trough. Sheets are positioned with the horizontal portion of one edge in overlying relation with the upwardly facing trough of another sheet. A clip member is secured to the underside of the top horizontal portion of one sheet and extends around the underside of the upwardly facing trough portion of the other sheet to thereby secure the sheets to each other and to the roof structure.

This invention relates to building construction sheets of the type known in the industry as V beam corrugation sheets and fastening means for fastening the construction sheets to the building structure.

The V beam construction sheets are secured to the sides and roof of a building and serve as a weatherproof sheathing for the buildings. The conventional V beam construction sheets are illustrated and described in US. Patents No. 1,936,228 and No. 1,982,243 and have a series of corrugations with a fiat top wall, a flat bottom wall and inclined side walls connecting the flat bottom walls and flat top walls. The V beam construction sheets are assembled onto a building structure with the corrugations in generally parallel alignment by overlapping the lateral end corrugations of adjacent sheets. A selftapping threaded fastener is driven through the fiat bottom walls to secure the sheets to the building structure and a self-tapping threaded fastener is driven through the overlapped top flat walls to secure the adjacent sheets to each other. The lateral inclined edge portion of the known construction sheets terminate at a location approximately /2 the distance between the flat top wall and the fiat bottom wall. When positioned in overlapping relation the lateral edges of the V beam sheets have a depending edge portion that extends downwardly to a location approximately midway between the valley and the crest of the construction sheet and are so positioned that the edges are in overlapped relation to each other.

The use of the above described V beam type construction sheet in building structures presents weatherproofing problems unless a sealant is provided between the overlapped portions. During inclement weather, where there is a high wind blowing transversely to the longitudinal corrugations, water is blown upwardly between the overlapped portions of adjacent sheets and flows over the fiat top surface of the underlying sheet and then downwardly between the overlapped inclined side walls and into the interior of the building.

Also where there has been longitudinal relative movement between adjacent sheets due to uneven expansion and contraction, the apertures formed by the self-tapping threaded fasteners are elongated and permit the passage of water therethrough. A portion of the water passing through the elongated aperture will fiow into the internal portion of the building. To remedy this type of leakage there are usually provided specially constructed washers beneath the head of the self-tapping threaded fasteners. Even with the specially constructed washers leakage through the apertures has been known to occur.

Accordingly, the principal object of this invention is to provide a V beam construction sheet having modified lateral edge portions that eliminates substantially all of the above discussed problems.

Another object of this invention is .to provide a fastening means for the herein described V beam construction sheet that fixedly secures the construction sheets to each other and to the building structure.

These and other objects and advantages of this invention will be more completely disclosed and described in the following specification, the accompanying rawings and the appended claims.

Briefly the present invention includes a V beam construction sheet that has a longitudinal trough adjacent a lateral edge portion that is arranged to be positioned in underlying relation with the lateral edge portion of the overlying sheet. A fastening means is provided that is secured to the building structure and secures the lateral edge portion of the underlying sheet and provides a receiving portion for a fastener that extends through the top fiat wall of the overlying construction sheet.

For a better understanding of the present invention, its objects and advantages, reference is made to the following written description, to be taken in conjunction with the accompanying drawings which form a part hereof and in which:

FIGURE 1 is a perspective view of a building structure illustrating the various embodiments of the invention.

FIGURE 2 is a view in side elevation of a construction sheet illustrating the manner in which the herein described improved construction sheet may be fabricated in two symmetrical halves.

FIGURE 3 is a fragmentary view in cross section illustrating the manner in which the overlapped portions of adjacent sheets may be fastened to each other and the sheets fastened to the building structure.

FIGURE 4 is a fragmentary view in cross section illustrating in detail the overlapped portions of adjacent sheets and a fastening means for securing the overlapped sheets to each other and to the building structure.

FIGURES 5 and 6 are views in section illustrating an intermediate clip means .that may be secured to the trough portion of the underlying sheet between the transverse building beams and the manner of securing the lateral edge portion of the overlying sheet thereto.

FIGURE 7 is a view in section of a fastening means fastening the construction sheets at intermediate corrugations to the building structure.

FIGURE 8 is a view in section taken along the lines 8-8 of FIGURE 4 illustrating in detail a portion of the fastening means that limits longitudinal movement of the construction sheet relative to the building structure.

Referring to .the drawings and particularly FIGURE 1, there is illustrated a plurality of construction sheets generally designated by the numeral 10. Each construction sheet has a front lateral side edge portion designated by the numeral 12, and a rear lateral. side edge portion designated by the numeral 14. The construction sheets each have a plurality of V shaped longitudinally extend ing corrugations between the lateral front side edge portion 12 and the rear lateral side edge portion 14. The corrugations are formed with fiat top wall 16 and a substantially flat horizontal bottom wall 18. Inclined side walls 2% and 22 join the spaced horizontal flat walls 16 and the fiat horizontal bottom walls 18 to form the V shaped corrugations.

The front lateral side edge portion 12 terminates in an inclined side wall 24 that extends substantially one-half a substantially horizontal the distance between the adjacent flat horizontal top wall 16 and the horizontal plane of the flat bottom wall 18. The rear lateral side edge portion 14 terminates in a trough portion generaly designated by the numeral 26 that is formed in the elevated top wall portion 16 adjacent the rear later edge portion 14. The construction sheets are positioned in overlapped relation with the front lateral side edge portion 12 overlapping the rear lateral side edge portion 14 of the adjacent sheet, as is illustrated in FIGURES l, 3 and 4. The overlapped portions of the construction sheets 10 are secured to the beam-like portions 28 of the building structure by a suitable fastening means.

The construction sheets '10 may be formed from a relatively wide sheet metal strip, as is illustrated in FIG- URE 2, wherein the V shaped corrugations are formed in the flat strip of steel by means of suitable rolling processes. The relatively wide construction sheet is modified so that the intermediate top wall 16 has a pair of symmetrical troughs 26 therein. The side end portions of the relative wide sheet have inclined side Walls similar to side wall 24. The relatively wide construction sheet is then out along the line XX to form a pair of improved construction sheet with the trough section 26 formed therein. If desired, the relatively wide construction sheet having the pair of troughs 26 formed therein may be used in the conventional manner and the pair of troughs 26 providean esthetic ornamental apeparance thereto. The description of the construction sheet will be directed to a construction sheet that has a rear lateral side edge portion 14 with the upwardly facing trough formed therein adjacent to the inclined side wall 22.

Referring in detail to the joint between the overlapped construction sheets 10 illustrated in FIGURE 4 which includes a fastening means generally indicated by the numeral 30 that secures the fastening sheets to the building structure and to each other, the overlying rear side edge portion 14 has an inclined side wall 32 extending upwardly from the flat bottom wall 18 and a downturned portion 34 adjacent thereto. The inclined wall 32 and downturned portion 34 form an upwardly curved crest 36 in the construction sheet rear side edge portion 14. An upwardly inclined wall 38 extends in diverging spaced relation with the inclined wall 34 and is joined thereto to form a downwardly facing curved portion 40, the upper surface of which is the longitudinal trough 26. The edge portion 42 of the upwardly inclined wall 38 is bent outwardly therefrom to provide a male lip along the construction sheet rear side edge 14.

The fastening means 30 has a starting leg 44 which, in an unfastened position is in angular relation with the upper surface 46 of the building structure beam 28. An intermediate substantially vertical portion or web 48 extends upwardly from the end of the starting leg 44. A laterally curved portion 50 extends from the upper end of the web 48 and has a contour similar to the contour of the construction sheet rear side edge portion downwardly facing crest or curved portion 40 and the upwardly inclined leg 38. The fastening means 30 has a rebent portion 52 with a lower leg 54 and an upper leg 56 that are spaced from each other and form a receiver 58 therebetween for the construction sheet rear side edge lip 42. The upper leg 56 extends in a plane substantially parallel to the plane of the starting leg 44 and has a dimension substantially equal to the construction sheet top wall 16 and a downturned edge portion 60 that conforms to the junction between the undersurface of the top wall 16 and the end inclined wall 24. The undersurface of the downturned edge portion 60 conforms to the contour of the upwardly facing crest 36 between the upwardly inclined wall 32 and the downwardly inclined wall 34. The fastening means upper leg 56 has a longitudinal recessed portion 62 that forms a downwardly extending ridge .64 on the underside of the leg 56.

The construction sheets are secured to the building structure transverse beams 28 in the following manner. A construction sheet 10 has a fastening means 30 positioned over the rear lateral edge 14 with the construction sheet lip 42 extending into the receiver 58 of the fastening means 30. The fastening means, which may be either in the form of short clips positioned on edge of the building structure beams 28 or elongated fastening strips that extend over two or more transverse building structure beams 28 is secured to the building structure beam 28 by a threaded fastener such as bolt 66 extending through an aperture 68 in the fastening means starting leg 44 and an aperture 70 in the construction beam 28. Although the bolt 66 is illustrated as the fastener, it should be understood that other suitable fasteners such as rivets or the like may be used. As previously stated the starting leg 44 is angularly displaced relative to the building structure beam upper surface 46 and when the bolt 66 is tightened the starting leg 44 is moved downwardly into the position illustrated in FIGURE 4 to thereby exert a downward force on the crest 36 between the inclined walls 32 and 34 and on the lip 42 to thereby urge the construction sheet bottom wall 18 into abutting relation with the building structure beam upper surface 46. With this arrangement, the fastening means 30 fixedly secures the rear side edge portion 14 of the construction sheet 10 to the building structure 28. V

The front lateral side edge r12 of the adjacent construction sheet 10 is positioned in overlying relation with therear side edge portion 14 of the construction sheet that is secured to the building structure by the fastening means 30. The inclined end side wall 24 is in overlying relation with the upwardly inclined side wall 32 of the overlying construction sheet 10 and the undersurface of the flat top wall is in abutting relation with the upper surface of the horizontal upper leg 56 of the fastening means 30. A self-tapping fastener 74 extends through the flat top wall 16 and the fastener horizontal leg 56 and fixedly secures the front lateral side edge portion 12 of the overlying construction sheet to the fastening means 30 and to the building structure 28. I

With the fastening means 30 disclosed in FIGURE 4 and the trough 26 in the underlying rear later side edge portion 14 of construction sheet 10, a weather-tight joint is formed between the overlapping sheets. Where, under severe weather conditions, water is forced up the upper edge portion 24 of the overlying sheet, the water flows downwardly into the trough 26 that extends longitudinally throughout the length of the construction sheets and cannot enter the interior portion of the building. The trough 26 has a sutlicient depth so that dirt or other foreign material forced upwardly between the overlapped end portions of the construction sheets is unlikely to cause an obstruction of sufficient magnitude to clog the trough 26.

The leg 56 of the clip 30 has the depending portion or ridge 64 which serves as a water stop in the event there is a leak around the self-tapping fastener 74 so that the water will collect along the under side of the ridge 64 and drain into the trough 26 and not into the internal portion of the building structure. Where the fastening means 30 is in the form of a clip, the starting leg 44 has a depending lateral flange 76 (FIG. 8) that abuts a vertical edge 78 of the beam 28, preferably the upper vertical edge, and prevents rotation of the fastening means 30 about the bolt 66 and thereby prevents longitudinal movement of the construction sheets relative to the building structure except for the small amount required for expansion and contraction of the construction sheets.

Where there is a substantial distance between the building structure laterally extending beams 23 it may be desirable to secure the overlapped end portions of the construction sheets to each other to prevent sagging of the underlying sheet. There is illustrated in FIGURES 5 5 and 6 a clip member generally designated by the numeral surface of the inclined portion 32 beneath the downturned aeaaaee 80 that may be utilized to secure the overlapped lateral edge portions to each other where the fastening means vare in the form of short sections known as clips and occurring only at the supporting beams 28. The clip 30 is a clamp on type yoke clip that is illustrated in an open position in FIGURE 6 and in the closed position in FIG- URE 5. The clip 80 has a similar configuration as the upper portion of the fastening means 30 and may be extruded or formed from the same machinery used to form the fastening means 30. In describing the clip 80, the same numerals will designate portions of the clip 80 that are similar to the fastener 30. The fastener 80 has a top horizontal leg 56 with a downturned end portion 6'9 and a lower horizontal leg 54 that forms the rebent portion 52 and the receiver 58. The curved portion 541 terminates in an upwardly extending edge portion 82 that has substantially the same configuration as the under surface of trough 26.

The clip member 80 is preferably positioned on the construction sheet rear lateral side edge 14 while the construction sheets are still on the ground. The clips 80 in the open position illustrated in FIGURE 6 are positioned over the construction sheet rear side edge por tion 14 with the lip 42 extending into the clip receiver 58. A pair of pliers or other type of tool is used to close the clip until it holds fast in the desired location along the rear lateral side edge portion 14. Pressure is applied to the underside of the curved portion and to the upper horizontal leg 56 simultaneously until the curved portion 59 is forced tightly against the underside 40 of trough 26 and at the same time the lip 42 is forced tightly against the underside of horizontal leg within the receiver 58 and the horizontal leg downturned end portion 6%] is forced tightly against the crest 36. With the clip in place the front lateral side edge portion 12 is positioned in overlapping relation with the rear lateral side edge portion 14 of the adjacent sheet as illustrated in FIGURE 5. The self-tapping threaded fastener 84 secures the top flat wall 16 to the clip horizontal leg 55 which forces the downturned inclined wall 24 tightly against the upper inclined wall 32, of the underlying sheet. It should be understood that the clips 855 may be used where the end portions of the construction sheets are secured to the building structure "beams 28 in the manner previously described and also where fastening means 30 are not employed. Another advantage of the clip fit is that the self-tapping fasteners 84 are not exposed within the internal portion of the building structure and they provide a relatively rigid attaching means for the self-tapping fastener 84.

If the construction sheets are of such a width that intermediate supporting means is desired at the intermediate troughs between the overlapped end portions, a clip fastener such as illustrated in FIGURE 5 and generally designated by the numeral 86 may be used. The fastener 86 has a Z shape with a horizontal lower flange 88 secured to the building beam 28 and an upper horizontal leg 90 secured to the underside of the flat horizontal top wall 16 by a self-tapping fastener 92. The dimension of the web 94 between the flanges 8% and 90 is such that the lower flange 88 may be secured to the building structure and the top horizontal flange 90 provides support for and a means to secure the upper horizontal top wall 16 thereto.

In certain installation it may be desirable from an economic standpoint to omit the fastening means 30 and use the conventional fastening means where a self-tapping fastener extends through the construction sheet horizontal bottom wall into the building structure to secure the construction sheets to the building structure and another fastener extends through the overlapped top walls to secure the construction sheets to each other. The use of the conventional method of fastening construction sheets to a building structure may also be utilized with the herein disclosed invention.

Referring to FIGURE 3 there is illustrated in section a pair of lapped construction sheets secured to the building structure and to each other in a conventional manner. The construction sheets 1d are positioned with the front lateral side edge portion 12 overlapping the rear lateral side edge portion 14 of the adjacent sheet. The curved portion 36 i adjacent to the under surface of the construction sheet top wall 16. The front lateral side edge inclined side wall 24 abuts the upwardly inclined side wall 32 of the underlying construction sheet rear lateral side edge 14-. The trough 26 is spaced laterally from the inclined end wall 24 and a self-tapping fastener 1&2 extends through the front lateral side edge top wall 16 and through the crest 36 of the rear lateral side edge 14. Fasteners 104 secure the bottom wall 18 to the building structure upper surface 46. With this arrangement a Weather-tight joint is provided between the lapped construction sheets. Any water leakage between the down Wardly inclined end 24 of the overlying sheet and the upwardly inclined portion 32 of the underlying sheet will flow over the crest 36 into the trough 26 and flow down the trough 26 and not into the internal portion of the building structure.

With the previously described means for fastening the construction sheets, it is now possible to provide a Weather tight joint between the overlapped side edge portions of construction sheets that have a general configuration similar to known V shaped construction sheets with a modified rear lateral edge portion as herein described. The construction sheets are formed in a manner similar to the presently known construction sheets with a slight modification in the rolling equipment. The rolling equipment is modified at very little expense to form the previously described contour to the rear lateral side edge portion 14 without changing the width of the sheet material stock. The herein described modified construction sheets may be secured to the building structure beams by means of self-tapping fasteners extending through the bottom horizontal walls into the building structure and through the overlapped portions of the construction sheet lateral side edge portions. Where additional rigidity is desired, a fastening means such as the fastener previously described may the used to secure the construction sheets to the building structure and intermediate clips similar to clips 8t may be used when desired. With any of the above fastening procedures there is provided a weathertight joint between the overlapped lateral side edge portions that eliminates water leakage into the building through the lapped joints of adjacent construction sheets. The longitudinal end portions of the construction sheets may be overlapped in the conventional manner to provide water-tight lapped portions.

According to the provisions of the patent statutes, I have explained the principle, preferred construction, and mode of operation of my invention and have illustrated and described what I now consider to represent its best embodiments. However, I desire to have it understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specifically illustrated and described.

I claim:

1. In a joint for connecting a pair of construction sheets in overlapped relation comprising,

a pair of V-shaped corrugated construction sheets each having a body portion with a front lateral side edge portion and a rear lateral side edge portion,

said body having V beam corrugations with a substantially flat horizontal top wall, a substantially flat horizontal bottom wall and inclined side walls joining said flat top wall and said flat bottom wall,

said rear lateral side edge portions having an upwardly inclined portion terminating in a laterally extending substantially horizontal end portion,

said laterally extending substantially horizontal end said front lateral side edge portion terminating in a downwardly inclined side wall,

said front lateral side edge portion terminating in a downwardly inclined side wall,

said sheets positioned with said front lateral side edge portion of one of said sheets overlapping the rear said sheets positioned with said front lateral side edge lateral side edge portion of said other sheet with said portion of one of said sheets overlapping the rear rear lateral side edge upwardly facing trough posilateral side edge portion of said other sheet with tioned beneath said adjacent overlying top wall of said rear lateral side edge upwardly facing trough said overlying sheet and said front lateral side edge positioned beneath said adjacent overlying top wall downwardly inclined side wall abutting the upper surof said overlying sheet and said front lateral side 10 face of said underlying upwardly inclined portion of edge downwardly inclined side wall abutting the upper said rear lateral side edge portion, urfa e of aid nd rl in upwardly in lined orfastening means positioned between and securing said tion of said rear lateral side edge portion, front lateral side edge of one sheet to said rear latfastening means positioned between and securing said ral Side dge 0f Said other Sheet and securing said front lateral side edge of one sheet to said rear lat- Sheets to a building Structure beam positioned thereeral side edge of said other sheet and securing said n h, sheets to a building structure beam positioned there- Said fast ning m ans including a substantially horib ath, d zontal lower leg secured to the building structure said fastening means including a substantially horizontal m, a su stantially horizontal upper leg arranged loWer leg secured to said building structure beam, in substantially parallel relation with said lower leg, a substantially horizontal upper leg arranged in subsaid upper leg abutting the underside of said top stantially parallel spaced relation with said lower horizontal wall Of S overlying Sheet and abutting leg, said upper leg abutting the underside of said top said upwardly facing curved portion of said underhorizontal wall of said overlying sheet, a fastener y g Shed, a threaded fastener t i g through extending through said construction sheet top horisaid construction sheet top horizontal wall and said zontal wall and said fastening means upper horizontal fastening means pp horizontal leg thereby Secur leg thereby securing said overlying constr ti ing said overlying construction sheet to said fastening sheet to said fastening means, means,

said fastening means having a web portion COnIigcting said fastening means having a web portion connecting said upper and lower legs to each oth id b said upper and lower legs to each other, said web portion and said upper leg forming a receiver thereportion and said upper leg forming a rebent receiver between, aid underlying r ar lat al dg tio portion therebetween, said underlying rear lateral having a ti extending i t id receiver, edge portion second upwardly inclined portion having.

said fastening means web portion having a curved poran end Portion x ndi g into Said receiver, and

tion extending downwardly from said receiver porsaid fastening means web portion having a curved portion, said rear lateral side edge troughed porti tion extending downwardly from said receiver porsupported b id b curved ti ith id tion, the underside of said rear lateral side edge threaded fastener securing said horizontal top wall tfoughed Portion Supported y Said Web Curved P and said upper leg extending downwardly within said tion, Said fastening means Curved Portion and Said upwardly facing troughed portion. upper horizontal leg wedging said rear lateral side 2. In a joint for connecting a pair of construction sheets dg p ti n therebetween thereby securing said rear in overlapped relation comprising, lateral edge portion to said building structure beam.

a pair of V-shaped corrugated construction sheets each having a body portion with a front lateral side edge References Cit d portion and a rear lateral side edge portion, UNITED STATES PATENTS said body having V beam corrugations with a substantially flat horizontal top wall, a substantially fiat Egbert 52 521 horizontal bottom wall and inclined side walls join- 4 5 6 6 1/193 ammo? "7- ing said flat top wall and said flat bottom wall, r 0 Fulenwldcr et a1 5252O said rear lateral side edge portion having an upwardly 2,163,840 6/1939 Hunker 52-534 inclined portion, a downwardly inclined ortion ex- 2,178,415 10/1939 Ansel 20 tending laterally from said upwardly inclined portion 3,150,453 9/ 1964 Johnson 52537 and forming an upwardly facing curved portion and a second upwardly inclined portion extending laterally from said downwardly inclined portion and forming an upwardly facing trough,

FRANK L. ABBOTT, Primary Examiner. 55 A. C. PERHAM, Assistant Examiner.

Claims (1)

1. IN A JOINT FOR CONNECTING A PAIR OF CONSTRUCTION SHEETS IN OVERLAPPED RELATION COMPRISING, A PAIR OF V-SHAPED CORRUGATED CONSTRUCTION SHEETS EACH HAVING A BODY PORTION WITH A FRONT LATERAL SIDE EDGE PORTION AND A REAR LATERAL SIDE EDGE PORTION, SAID BODY HAVING V BEAM CORRUGATIONS WITH A SUBSTANTIALLY FLAT HORIZONTAL TOP WALL, A SUBSTANTIALLY FLAT HORIZONTAL BOTTOM WALL AND INCLINED SIDE WALLS JOINING SAID FLAT TOP WALL AND SAID FLAT BOTTOM WALL, SAID REAR LATERAL SIDE EDGE PORTIONS HAVING AN UPWARDLY INCLINED PORTION TERMINATING IN A LATERALLY EXTENDING SUBSTANTIALLY HORIZONTAL END PORTION, SAID LATERALLY EXTENDING SUBSTANTIALLY HORIZONTAL END PORTION HAVING AN UPWARDLY FACING TROUGH FORMED THEREIN, SAID FRONT LATERAL SIDE EDGE PORTION TERMINATING IN A DOWNWARDLY INCLINED SIDE WALL, SAID SHEETS POSITIONED WITH SAID FRONT LATERAL SIDE EDGE PORTION OF ONE OF SAID SHEETS OVERLAPPING THE REAR LATERAL SIDE EDGE PORTION OF SAID OTHER SHEET WITH SAID REAR LATERAL SIDE EDGE UPWARDLY FACING TROUGH POSITIONED BENEATH SAID ADJACENT OVERLYING TOP WALL OF SAID OVERLYING SHEET AND SAID FRONT LATERAL SIDE EDGE DOWNWARDLY INCLINED SIDE WALL ABUTTING THE UPPER SURFACE OF SAID UNDERLYING UPWARDLY INCLINED PORTION OF SAID REAR LATERAL SIDE EDGE PORTION, FASTENING MEANS POSITIONED BETWEEN AND SECURING SAID FRONT LATERAL SIDE EDGE OF ONE SHEET TO SAID REAR LATERAL SIDE EDGE OF SAID OTHER SHEET AND SECURING SAID SHEETS TO A BUILDING STRUCTURE BEAM POSITIONED THEREBENEATH, AND SAID FASTENING MEANS INCLUDING A SUBSTANTIALLY HORIZONTAL LOWER LEG SECURED TO SAID BUILDING STRUCTURE BEAM, A SUBSTANTIALLY HORIZONTAL UPPER LEG ARRANGED IN SUBSTANTIALLY PARALLEL SPACED RELATION WITH SAID LOWER LEG, SAID UPPER LEG ABUTTING THE UNDERSIDE OF SAID TOP HORIZONTAL WALL OF SAID OVERLYING SHEET, A FASTENER EXTENDING THROUGH SAID CONSTRUCTION SHEET TOP HORIZONTAL WALL AND SAID FASTENING MEANS UPPER HORIZONTAL LEG THEREBY SECURING SAID OVERLYING CONSTRUCTION SHEET TO SAID FASTENING MEANS, SAID FASTENING MEANS HAVING A WEB PORTION CONNECTING SAID UPPER AND LOWER LEGS TO EACH OTHER, SAID WEB PORTION AND SAID UPPER LEG FORMING A RECEIVER THEREBETWEEN, SAID UNDERLYING REAR LATERAL EDGE PORTION HAVING A PORTION EXTENDING INTO SAID RECEIVER, SAID FASTENING MEANS WEB PORTION HAVING A CURVED PORTION EXTENDING DOWNWARDLY FROM SAID RECEIVER PORTION, SAID REAR LATERAL SIDE EDGE TROUGHED PORTION SUPPORTED BY SAID WEB CURVED PORTION WITH SAID THREADED FASTENER SECURING SAID HORIZONTAL TOP WALL AND SAID UPPER LEG EXTENDING DOWNWARDLY WITHIN SAID UPWARDLY FACING TROUGHED PORTION.

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