US1822134A

US1822134A - Roofing

Info

Publication number: US1822134A
Application number: US355329A
Authority: US
Inventors: Rudolph A Eckberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-04-15
Filing date: 1929-04-15
Publication date: 1931-09-08
Anticipated expiration: 1948-09-08

Description

p 8, 1931- R. A. ECKBERG 1,822,134

ROOFING Filed April 15, 1929 I N VEN TOR AT TORNEY Patented Sept. 8, 1931 UNITED STATES PATENT OFFICE ROOFING Application filed April 15,

My invention relates to roofing and more particularly to lap joints for roofing sheets, the principal objects of the invention being to reduce leakage at the lap or joint through capillary attraction, wind driven rains or other causes, to increase the drain area in a lap or joint, to facilitate the manufacture and installation of roofing sheets and to assure the drainage of water in the drain area of a lap joint.

In accomplishing these and other objects of the invention, I have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective view of a portion or a roof formed of sheets provided with my improved lap joint members.

Fig. 2 is a transverse vertical section of a joint at the point where the fastening nail'is installed, illustrating the relation between the .nail and the joint members.

' Fig. 3 is'an enlarged detail view of portions of disassembled joint members.

Referring in detail to the drawings:

1 designates generally a roof including a supporting timber member 2 such as sheathing, and sheets or metal plates 3 having differentiated lap joint elements at adjacent edges 4 and 5, namely the right and left edges as illustrated in the drawings for sealingly connecting the sheets and providing an enclosed gutter or drain area designated 6 comprising a channel t-hrou h which water that gains access to the join may pass toward the eaves of the roof.

' The joint element 4 includes an upwardly inclined flange 7 at the side edge of a sheet which will be referred to as the right edge, bent retractively at an acute angle, and forming an outer or side wall of the channel, and a trough or floor portion 8 having relatively great width and extending beyond a perpendicular dropped from the margin of the edge flange to the sheet. An inverted V-shaped upstanding rib or ridge-like hollow head 9 comprising an isolated corrugation is formed at the inner edge of the floor 8, having an inclined inner wall -1O which meets the sheet at a relatively obtuse angle.

1929. Serial N0. 355,329.

The joint element 5 on the adjacent edge of the adjacent sheet comprises an arch 11 or inverted channel-like rib for covering the gutter formed by the joint element 4, and in-,

plane of the sheet. An outer inclined leg 14 extends downwardly from the web and is adapted to overlie and engage the inclined wall 10 of the rib 9. 1

An edge flange 15 is preferably provided on the edge of the wall 14 to engage the normal upper surface of the adjacent sheet.

The sheets may be secured to the sheathing by suitable means, for example by nails driven through the sheets at selected points adjacent the edges of the sheets, to latch the joint elements together, for example, through the" sheathing-engaged portions of the sheets and adjacent portions of adjacent sheets.

The spacing of the upper edges of the arch walls 12 and 14 by the web 13 affords a blank area or seat forinserting fastening nails 16 which may be driven through the floor of the gutter into the wooden support as illustrated in Fig. 2.

In applying roofing sheets constructed as described, the interlocking seams extend from the ridge toward the eaves. The hook like joint element 5 of one sheet is laid upon the fold or seam portion of the joint element 4 of an adjacent laid sheet in interlocking relation therewith, so that the inner inclined wall 12 of the arch 11 engages the edge flange 7 of the laid sheet, and the outer inclined wall 14 engages the inner inclined wall 10 of the rib 9.

Relatively slight pressure causes the arch .to move into close and sealing relation with the related joint elements, the wall 14 sliding over the rib 9 so that the flange 15 may be in close face contact with the normal sheet portion, a and a ,nail may then be driven through the web, channel, and flooi" of the gutter into the wooden sheathing.

. the rib 9 is spaced inwardly of the sheet from the vertical plane of the edge of flange 7 substantially by the width of the web 13. The nail thus has free access to the floor 8 so that it may engage a flat portion of the sheet and securely bind the same to the wooden members of the roof, and a relatively wide drain area is provided to assure the removal of water that may enter the channel.

The flange 7 tends to support the arch and prevent excessive bending of the same when a nail is driven which might unduly tension the arch and utimately cause Withdrawal of the nail.

The joint described further enhances the latching engagement of the sheets since the downward sliding movement of the integral diverging walls of the arch element over op positely inclined walls of the element i in tegral with the other sheet, tends to enforce their engagement.

Any water that enters the trough or channel through seepage or other causes drains to the eaves, and to find a lateral outlet must rise to the web, and the resilient character of the flange 7 and the enforcement of sealing engagement between the flange and. the arch by application of the nail, seal the edge of the flange to the arch to prevent lateral movement of water from the channel or seepage of Water between the flange and the arch toward the sheathing.

What I claim and desire to secure by Letters Patent 1s:

1. In roofing of the character described, comprising metal sheets, a lap joint including an arch-like rib on the edge of one sheet, an upwardlyretractively bent flange on the edge of the other sheet presenting the bottom surface of said flange upwardly for face to face engagement with the under surface of said rib, and a rib on said other sheet spaced from the flange and adapted to engage another portion of the under surface of said first named rib.

2. In roofing of the character described including a' pair of sheets, a lap joint for connecting the sheets including an arch rib on the edge of one sheet having a flange comprising the outer edge of said sheet extending substantially in the plane thereof and adapted to engage the upper surface of the adjacent sheet, an upwardly retractively inclined flange comprising the edge of said adjacent sheet adapted to engage the under side of one leg of said rib and a bent portion'of said adjacent sheet adapted to engage the other leg of said rib adjacent the edge flange thereof.

3. In roofing of the character described, a pair of sheets, one having a relatively low upstanding rib spaced from the outer edge thereof and an outer edge flange bent to an acute angle upwardly retractively over said sheetand having an outer margin spaced laterally from said rib, the other sheet having an edge rib including an outer wall adapted to engage the rib of the first named sheet and an inner wall adapted to engage the upturned under surface of the edge flange of the said other sheet.

4. In a device of the character described, including a pair of roofing sheets, an archlike rib at the edge of one sheet comprising an upwardly angularly extending wall, a downwardly extending wall and a horizontal web connecting the walls and forming the crown of the rib, the edge of the other sheet being bent upwardly retractively to form an edge flange having a normally bottom surface presented upwardly to engage the first named upwardly extending Wall, the edge of said flange engaging said web, and a rib spaced from said flange to receive said outer rib wa ll and provide a floor portion extending beneath said web.

5. In a device of the character described, including a pair of roofing sheets, a rib at the edge of one sheet comprising an upwardly angularly extending wall, a downwardly extending wall and a horizontal web connecting the walls and forming the apex of the rib. the other sheet having an upwardly retractively bent flange at its edge having substantially the same width as the first named upwardly extending wall and adapted for face to face engagement with the same, and a rib spaced from said flange to receive said-outer rib wall and provide a trough having a floor portion 1 extending beneath said web.

6. In roofing of the character described, a sheet having a retractively outer edge forming an upbent edge flange and a relatively low upstanding rib spaced from said flange to form a trough, and a sheet having an edge rib forming an arch overlying said trough and including an inner wall engaging said flangeand an outer wall engaging said rib.

7. In roofing including adjacent sheets. a lap joint comprising an upstainding rib on the edge of one sheet forming an arch having inner and outer legs and a web connecting the legs. a flange on the edge of the other sheet upbent retractively toward the body of said sheet and having substantially the same width as the inner leg of said arch, the normally bottom surface of said flange being presented upwardly to engage the under surface of said inner leg, and an upstanding rib spaced from said flange having an inner leg engaging the under surface of the outer leg of said arch.

8. In roofing of the character described, a pair of sheets, a rib on the edge of one sheet forming an arch having an inner and an outer Wall respectively spaced from and adjacent the edge of said sheet, the adjacent edge of the other sheet extending under said arch and having an upbent edge forming a flange engaging the under surface of said inner Wall, and a relatively low upstanding rib spaced from said flange to produce a trough and engaging the under surface of the outer Wall of said arch.

In testimony whereof I aflix my signature.

- RUDOLPH A. ECKBERG.