US1418377A - Roofing - Google Patents

Description

To all whom it may concern:

cmmms a. time, or nmumenam, smurfs.

ROOFING. I

Specification of Letters Patent. Patented June 6, 1922.

Application filed July 8, 1920. Serial No. 398,776.

Be it known that I, OHARLEs a citizen of the United States of America residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements in Roofing, of which the following is a specification.

This invention relates to a new and improved roofin especially adapted for use in recovering ol roofs.

My invention contemplates the use of comosition roofing in strip form, the strips eing especially manufactured and designed for application from eave to ridge instead of from side to side as is customary with strip or roll roofing.

There has long existed an urgent demand for some practicalmeans for a plying strip or roll roofing to old roofs an particularly old shingle roofs. The diflioulties that confront one in applying composition roofing to roofs and especially in seeking to recover with composition sheets an old shin le roof are of a serious nature, especially w ere the old shingles are applied over widely spaced strips of decking or sheeting. They generally present an irregular surface and are toorotten to permit the nails utilized for fastening the composition roofing to take any last- .ing anchorage therein. The result has been that the expansion and contraction of the composition roofing has rapidly drawn loose the fastening nails which were embedded only in the shingles, thus permitting the roofing strips. to become loose and to be blown away. ln fact it is now the general opinion of those skilled in the art that strip roofing cannot be successfully applied over an old shingle roof with side by side spaced roof sheathlng,

The method and the preferred means for carrying the method into elfectwhich form the subject matter of this invention are the result of many years careful and exhaustive. experiment in the recovering of old shingle roofs which present problems peculiar to themselves and differing fundamentally from the solidly sheathed roof. The essential feature of this invention consistsin the utilization of very thin, light, flexible strips of wood or like material which will not have suflicient body in themselves to warp or. pull loose from the roof to which it is applied as a lattice frame; which will be sufliciently flexible to conform readily to ,curves and B. JAYNEB,"

angles ofa roof,where not too sharp; and which Wlll possess just sufficient body ,to be firmly anchored bytheir retaining nails to the decking or sheathing and rafters and to afford a sufficient anchorage for the fastening nails for the roofing strips so as to insure their holding. It is important that the strips be only thick enough to afford thenecessary na1 anchorage as otherwise they will pul away from the roof sheathing or from the composition strips and prove wholly 1m ractical.

y invention further contem lates the utllizatlon of a strip wider than t e overlap given the s de edges'of adjacent composition roofing strips so'that it will project be 0nd the ]01Ilt and thus better support it an the thick layer of cement which is interposed between said lapped edges, the retaining nails being driven down through the lapped roofmg edges into'the retaining strips while. the

cement is soft so that it serves to seal the in transverse section in Fig. 1 with'one strip a of roofing rolled up at its lower end to expose the old roofing and show an attaching str1p and the cement layer applied ready for the raised roofin'gto be laid. F ig.- 2 is a typical plan of part of a roof showing the lattice arrangement of the attaching strips.

Similar reference'numerals refer to similar parts throughout the drawings.

Asillustrated, I show a typical roof supported by rafters,1 on which are spaced sheathing or decking strips 2 to which are nailed the shingles 3. To cover such a roof with composition roofing, I first lay on top of the shingles a thin wooden attachmg strip- 4 which at suitable intervals is attached by means of nails 5 'to the sheathing and where possible to the rafters so as to insure a firm and permanent attachment. This stri is after being fastened a second strip, similar thereto and parallel therewith, is applied to the roof and spaced on centers corresponding approximately to the'width of the roofing str1ps 6 which are to be applied. These strips may be of any suitable design for being laid from eave to ridge and the first section of roofing laid is attached along one edge to oneof the strips 4 by nails 7 which are driven through the strip 4 and the shingles and are long enough, to enter the sheathing and the rafters where the latter are in line. Havmg secured one side edge of a roofing section in shouldv come even with the far edge'of onestrip and its other side edge should stop from one-half to an inch short of the far. edge of .the other strip 4. A thick heavy layer 8 of roofing cement of any suitable character is then applied over the underlying edgeof the roofing section whichrests on the str1p and the edge of the next roofing section is applied so as to overlap the cemented edge of the first mentioned roofing section and partly overlap the stri 4. The overlapplng edges of the roof sectlons 6 are then made fast by nails driven through them and the cement layers and through the underlying strip into the shingles, sheeting or rafters where-the latter are in line, and one complete section of the roof has thus been laid.

v Strips 9 are. laid along the eave and strips 10 along on both sides'of each hip so as to provide a firm means for attaching the top and bottom edges of the strips in position. The strips throughout run straight up from eave and abut against the bases of the shingles forming the top horizontal row at the ridge, the shingles or other means forming the ridge or hip combs having been first removed. The ends of the roofing strips 6 are nailed securely to the top sheathing board at ridge and to the eave strip 4.. I thus avoid any loose or unsecurely attached edge for any of the roofin section. When the roof has been applied it will be observed that there is but a slight hardly noticeable ridge formed by the attachment strips 4 and I thusavoid spoiling the appearance of the roof and I allow just enough sag crosswlse of the roofing sections 6 to take care of their natural expansion and contraction. It is also tobe noted that the thin strips 4 will form a permanent attaching frame or lattice because by reason of its thinness its expansion and contraction will not tend to pull it loose from the sheathing boards. If a thick strip were used it would have more strength and would pull the nails out and work loose. Moreover, if a thick strip were used on roofs having curves it will bulge in places tearing the roof,

the joints of the whereas thin flexible strips willconform to and will remain rigidly in position on the roof as originally applied'and will effectively protect the roofing from being broken or torn. Y

A further advantage ofthe thin strip is that it will support only a negligible portion of the composition roofing clearof the shingles. There is therefore a'minimum of danger of the composition roof being broken through by stones or other articles falling on the roof or even-by one stepping thereon. Moreover, the thin wide strips serve to raise composition roofing just enough to cause the water to shed therefrom, the exposed joint being spaced inwardly from the underlying strip edges so that it is fully supported thereby as well as protected from water.

Having thus described my invention, what I claimas new and desire to secure by Letters Patent, is:.

1. A roof construction comprising the combination with spaced sheathing boards having wooden shingles nailed thereon, of

thin wide flexible wooden strips laid ove; the

old shingles and nailed to the sheathing boards, said strips extending in spaced relation substantially from eave to rid e of the roof, sheets of composition roofing aid with their adjacent side edges overlapping each other and said strips, a layer of-cement interposed between. the lapped sheet edges above said strips, and a row of roofing nails driven down through the lapped sheet edges and the interposed cement-into each of said wooden strips to secure the composition roofing thereto. I

2. A roofing comprising the combination with an old shingle roof having spaced sheathing boards, of thin wide flexible 'at taching strips laid over the old shingles along the eave and on each side along the, hips, and vertical strips vrising from the eave strips to the butts of the top horizontal row of shingles along the ridges, com osition roofing laid in sheets extending rom eave to ridge or hip, side edge overlappingan attaching strip and its other side edge overlapping the adjacent edge of a sheet which itself overlaps another of said attaching stri s, a layer of cement interposed between each pair of overlapping edges of the roofing sheets, fastening nails driven through the lapped edges of the roofing sheets the interposed cement and the underlying attaching strips into the underlying sheathing boards and shingles, and means to fasten said attaching strips to the sheathing boards, substantially as described. 3. The hereindescribed means for the lay ing of composition roofing over old shingle roofs having spaced sheathing boards, which comprises in combination with an old shingle roof'having spaced sheathing boards thereeach sheet having one under, a lattice work formed of thin wide flexible strips laid over the old shingles and extending along the eaves and along the hips and from eaves to ridge and hips, the strips running from eave to ridge or hip being spaced substantially the width of the composition sheets to be applied, means to attach said lattice strips to the sheathing boards,

' and means to secure the marginal edges of the composition roofing sheets to the strips forming said lattice work.

4. The hereindescribed method for laying a composition roof over old shingle roofs having spaced sheathing boards, which consists in laying thin flexible attaching strips over the old shingles at right angles to the eave, said attaching strips extending approximately from hip to ridge, spacing said latter strips to correspond substantially to the width of the composition roofing sheets to be applied, applying the composition roofing sheets over the old shingles from eave to ridge or hip with their side edges overlapping each other and said attaching strips, nailing the attaching strips to the sheathing boards, applying cement between the lapped roofing edges, and nailing the lapped edges through the attaching strips into the underlying sheathing boards and shingles before the cement has set, substantially as described.

In testimony whereof I aflix my signature.

CHARLES B. J AYN-ES. W'itness:

Noum WELSH.

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