US 2182526 A
Description (OCR text may contain errors)
Dec. 5, 1939. p. Human 9 2,182,526
ASPHALT ROOFING Filed April 25, 1938 A ttorne ys Patented Dec. 5, 19 39 4 UNITED STATES PATENT OFFICE 2,182,526 ASPHALT ROOFING corporation of Ohio Application April 25, 1938, Serial No. 204,149
This invention relates to improvements in rooi. construction and the method of laying a roof whereby a neat, tight and thoroughly waterproof roof is secured.
One of the objects of this invention is the construction of an overlapping shingle roof from plastic composition shingles, which are in the form of long strips. The lower edges of the overlapping shingle strips are bound tightly down to the roof sheathing in such a manner as to efficiently protect the nailing means employed for securing the roof coating to the sheathing at all times. This construction, aside from providing an improved water-tight roof structure, further enhances the length of service of the root.
Another object is to provide a roofing construction adapted for application to old, as well as new.'roofs, and which may readily be applied over old roofs without the need of removing the previ-' ous weathered roof covering,
A particular object of this invention relates to the method of laying the continuous shingle strip layers so as to produce a thoroughly tight roof structure, wherein all overhanging shingle edge portions are fastened down to the underlapping shingle layers therebeneath to prevent any possible curling of the shingles.
Another object of this invention is to interlock and bind the overhanging shingle sections of the roof together in a manner to produce a thoroughly tight roof covering with the use of a minimum amount of nails or the like. The lower edges of the overlapping shingles are interlocked by means of a flexible clamp or clip to the underlapping shingle strip layers. This produces a very tight fiat roof structure which may be of any desired pattern depending upon the shape of the overlapping shingle employed.
A further object of this invention is to provide a novel and improved manner of binding the overlapping shingle strips together. It has heretoiore been the practice to fasten down overlapping shingles with staples or the like driven there- 7 through and into the roof sheathing. This has presented a leakage hazard which is avoided by the interlocking or tying together of the different shingle strips in the way disclosed by this invention.
These and other objects will appear from the following description taken in connection with the drawing.
In the accompanying drawing, in whichthe same reference characters designate the same parts in all the views:
Figure 1 is a perspective view of a roof construction illustrating the manner 01' laying the roof covering embodying this invention;
Figure 2 is a sectional view. tak ong the line 2-4 of Figure 1, looking in 51in: section of the arrows: 5
Figure 3 is an enlarged section view illustrating the manner of .tastening the mgle strips to the roof and the pinning down. of the overlapping shingle edges; a
Figures 4, 5 and 5A show three different types of shingle designs or configurations which may be employed for producing diiierent roof patterns and designs;
Figure 6 is a plan view of a composition shingle, partly broken away. adapted for use in .this invention, wherein the shingle surface is corrugated; and
Figures 7 and 8 are detail views of the metal clasp employed in this invention for interlocking the overlapping shingle strip edges with the underlapping shingle strips.
Referring more specifically tov the drawing, l represents a roof structure comprising a sheathing 2 over which is laid a continuous rectangular shaped shingle strip 3 and a similar rectangular shaped shingle strip 4 having a serrated or irregular lower edge 5. The roofing shingle strips may be applied to'the sheathing in the form of rows as indicated in Figure 1. The shingle strip may comprise a felt of suitable organic or inorganic fibers or fiber structure coated with bituminous or asphalt material and provided with a weathering surface layer of glazed granules or the like. I
The shingle layers are constructed in tiers or rows, each row being of double thickness, consisting of two layers of shingle strips matched up in straight lines to produce the desired roof pattern or design. The smooth edges of the rectan: 4 gular shingle strip 3 may in some instances the wider than the overlaid irregular gdge shingle strip 4, as indicated at 3' in Figure 3. r -,-This .will be especialy advantageous when the roofing construction of this invention is applied over new or badly worn roofs where maximum coverage is desirable. This-construction, of course, may also be employed in repairing old roofs, or the roof covering of this invention may be applied directly over the. old roof covering.
Different irregular shaped shingle strips may be employed in place of that illustrated in Figure 1, character 4; for instance shingle strips having the configuration illustrated in Figures 4 and 5 by the character references 6, I and Other obvious equivalent modifications in the 55 shingle occur to those skilled in the art. The surfaces of the shingle strips may be smooth as shown in Figure 1, or corrugated as illustrated in Figure 6, reference 8. Further the shingle-like coating material may be formed of readily pliable metal or synthetic resinous or the like material.
In laying the roof covering at the eaves or. edges of the roof, several relatively narrow. shingle strips, suchas indicated at! and ID in Figures 1 and 2, may be first secured to the sheathing covering 2, and then a smooth edge shingle strip 3 applied thereover. On top of this layer is then applied the irregular or serrated edge shingle strip material, as indicated in Figure 1. The two shingle layers are then anchored to the sheathing roof structure by a nail II or an equivalent device, inserted through the two shingle layers in the uppermost section. of the shingle as shown at H in Figure 1.
The second row or tier of shingles is thereafter applied over the preceding layer so as to overlap the lower shingle strip, and cover the nails II as illustrated in Figure 1. Succeeding rows of double layer shingle strips are thereafter applied in similar manner to provide a complete covering'for the sheathing structure.
A novel feature of this invention consists in providing a clasp or clamp l2 of metal or equivalent material, as illustrated in Figures 1, 2 and 3. The clasp I2 is in the form of a 'bent strap of distorted, U-shape, having an elongated leg i3 and a shorter leg H. The shorter leg I4 is provided with a sharpened hook-or point l5 bent inward at right angles to the leg portion ll as clearly shown in Figures 7 and 8.
The open clasp l2, as shown in Figure 7, is used to secure or fasten down the overlapping shingle strip edges as illustrated in Figures 1, 2, 3, 4 and 5. In installing the clip II, the leg l3 of the clasp is inserted under the nailed shingle layer 4 and the member I is bent downward in themanner shown in Figure 8, so that the pointed end ii of the clasp pierces the layers 4 and 3, securely locking the downward extending shingle flap edges, as illustrated at IS in Figures 1, 4 and 5.
It is to be further noted that by securely interlocking the shingle layers 3- and 4, as shown in Figure 3, the nail II is doubly protected against weathering since the edges of the fiaps 5 cannot raise up and permit water or other matter to contact the nail.
It will be observed that the method of apply- 5 ing the elongated shingle strips and interlocking the overfiap edges thereof provides a highly efficient and economical way of laying a roof coating. The method illustrated is obviously readily adapted for application over old as well as new roofs.
vention may be utilized and that I desire 'to com prehend within my invention such modifications as come within the scope of the claims and the invention. a
Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:
1. The method of constructing an improved roof comprising the steps of (a) laying elongated a under strip having a straight, smooth lower edge and a superimposed strip having a serrated lower edge, (b) matching the lower edges of the'upper serrated shingle strips so that the depending shingle fiap sections of the serrated strip will be disposed directly over the innermost cut-away section of the underlapping serrated shingle strip forming the adjacent shingle tier, (0) anchoring said shingle tiers to said sheathing at spaced places therealong in close proximity to said innermost cut-away sections, and (d) mechanically clamping the serrated and unserrated strips of adjacent shingle tiers together immediately next to the anchoring member so as to protect it from exposure to weathering. conditions.
2. The method of constructing an improved roof, comprising the steps of (a) taking shingles comprising long continuous rectangular strips having plain straight lower edges and serrated lower edges, (b) laying the elongated shingle strips upon a roof sheathing in the form of overlapping tiers, each tier comprising an under strip having a straight smooth lower edge with a superimposed strip comprising a serrated lower edge, (0) matching the lower edges of the upper serrated shingle strip so that the dependin shingle flap sections of said serrated strips will be disposed directly over the cut-away section of' the underlapping serrated shingle tier, ((1) anchoring said shingle tiers to said sheathing adjacent the innermost cut-away portions therealong, and (e) binding each of .said depending shingle fiap edges to the adjacent serrated shingle strip therebeneath between which is interposed an unserrated strip to thereby mechani-, cally seal the shingle anchoring means against contact with moisture and weatheringcondi-- cent the bights thereof, a second plain' strip laid along the line of said bights and covering said nails, a second serrated strip laid above said second plain strip with the apices thereof registering with the bights of the first serrated strip, and clamping means extending beneath the first serrated strip but short of the nail heads for clamping the second serrated and plain strip to the first serrated strip.