US2405325A - Roofing - Google Patents

Description

- 5 i4@ E. T. PARSONS ET AL 40,325

RooFING Filed Feb. 2l, 1945 gj v VN 22 1 IVENTORS.

EDWHRD T. PaRsoNS HND LON W. SHE

' A v mmm Patented Aug. 6, 1946 F l ROOFING Edward T. Parsons, Upper Montclair, and Hilon Willard Sawyer, Nutley, N. J.

Application February 21, 1945,'Serial No. 579,048

(Cl. 10S-6) 5 Claims.

This invention relates generally to roofing and more particularly to improved construction for connecting the foundation layers of a composition or water proofed roof with a vertical wall, a chimney, parapet and the like to prevent leaks.

An object of the present invention is to provide a strong, durable and eiiicient weather-proof connection between the roof and the building walls.

Another Object is to provide roofing which is cheap, easily laid and of considerable rigidity and which is produced of ingredients which are available at low prices.

Still another object is to provide a construction thatreliminates the necessity for anchoring devices, nails or the like.

A further object is to provide rooling that may be successfully secured to a wall of concrete or the like and may be readily connected to either a new or an old wall.

The invention will be better understood from the description thereof to follow taken in connection with the accompanying drawing in which- Figure l is a fragmentary sectional viewtaken through the vertical wall of a building and the roof thereof showing the main roong material connected to the wall by a construction embodying the present invention.

Figure 2 is a sectional view taken on the plane of the line 2 2 of Figure 1.

Referring to the drawing, a vertical wall 5 of concrete or any other suitable material is shown formed with an integral roof deck B. A parapet 'I of brick is built on top of the wall and on top of the parapet is a coping 8.

The roof deck is covered with a composition roong material preferably formed of a plurality of superimposed layers or plies of asphalt or pitch and felt or paper. A coating 9 of asphalt 0r pitch covers the upper surface of the roof. A layer or ply I of felt or paper is laid over the coating 9. Another layer or ply Il of asphalt or pitch covers the felt I0. Still another layer or ply I2 of felt is superimposed upon the asphalt I I and this felt I2 is covered by a layer or ply I3 of asphalt or pitch. These layers comprise the main portion of the roof and while live layers or plies of asphalt and felt includingr the coating are illustrated, it will be understood that any desired number of layers may be used. This roofing material, comprising the layers of asphalt and felt however, does not extend to the vertical wall but ends at a point remote therefrom as indicated at I4, leaving a space between the end of the material and the wall.

-inner surface of the wall.

The present invention is concerned with means for preventing moisture from entering under said roofing material from the parapet and contemplates a construction formed of a plurality of superimposed layers or plies of asphalt, pitch or the like and of felt, paper or the like. In accordance with the present invention, a layer or ply I5 of asphalt or pitch, which is similar to or may be actually a continuation of the layer 9, is placed over the supper surface of the concrete roof 6 in the space between the end of the roofing material and the wall 5.- A layer or ply I6 of felt or paper is next laid or embedded flatwise over the asphalt or pitch I5, the inner edge of the felt I 6 being positioned adjacent the outer edge of the roofing material and its outer edge abutting against the Another layer` or ply I1 of asphalt or pitch overlies the felt layer I 6, said layer I'I extending across the edge I4 of the main portion of the roof and directly merging into. iai-"contacting with the upper 'layer I3 of asphalt on the main po-rtion of the roof and having its outer edge abutting against the wall. A strip I8 of felt or paper is laid on said layer I'I of asphalt in overlapping relation to the joint between the ply 9 of the main portion of the roof and the ply I6 of the ashing. Another layer I9 of asphalt overlies the strip I8 and merges into the asphalt layer I'I at opposite edges of said strip'. Another ply or layer 20 of felt overlies the asphalt layers I'I and I9 and has its outer edge abutting against the wall, and its inner edge curved downwardly in overlapping relation to the edge of said strip IB and into contact with the asphalt layer I3. This layer 20 is topped by another layer or ply 2l of asphalt or pitch whose.

' 22 and onto the asphalt layer I3 and has its outer edge abutting against the wall. It will be noted that the outer edges of the layers or plies all abut against the inner surface of the wall se that a cemented sealed moisture-proof joint is formed between the rooling and wall.; The downwardly curved inner ends of the layers provide a slanting surface for shedding the surface water and the enlarged inner edge of the topmost asphalt 3 layer enhances the binding of the roong at this point. The wall is exposed or uncovered upwardly from the top surface of the layer 23.

The composite roofing herein described can be used to good advantage in any place in new or existing work where a flashing ordinarily would be used, more easily and safely than flashings now in use. It eliminates the necessity for anchoring devices for locking the dashing into the wall and also eliminates specially designed strips that are built into the wall to receive ashings. The roofing can be built up to a point much higher than is usual above horizontal surfaces with but very slight additional expense because of the cheapness of the asphalt and felt as compared with metal. The specific embodiment of the invention is especially advantageous in patching existing or old roofs, the flashing being removed and the roong material being cut away to leave edges in spaced relation to the parapet, as indicated at I4, after which the plies |-23 inclusive are applied as a border for the old roong material.

While the roofing material covering the main portion of the roof has been shown as composed of lve plies and the border composed lof seven plies, it will be understood that the border preferably will be composed of a plurality of plies equal in number at least to the number of plies of the roong material on the main portion of the roof although any additional number of plies may be used for the dashing as desired. Preferably the aggregate thickness of the layers of the border are equal to or greater thanthe thickness of the main portion of the roong material to ensure adequate drainage from the border.

Changes in details might be resorted to without departing from the scope of the invention and it is desired to be limited only by the state of the prior art and the appended claims.

To avoid circumlocution, in the claims, the terms asphalt and felt are intended to include all equivalents of or substitutes for, or all materials which will serve the same purpose as asphalt and felt respectively.

We claim:

1; The combination of a roof deck and an upstanding wall connected thereto, a composite roofing secured on said roof deck and comprising a plurality of superposed alternate plies of i asphalt and felt the outer margins oir which have an edgewise abutting and watertight sealed contact with said wall, said wall being uncovered upwardly from said roong.

2. The combination of a roof deck having an upstanding wall connected thereto, a composite main portion of roong material covering the area of said roof deck to a point remote from said wall, leaving a space between said main portion and said wall, and a border for connecting said main portion to the wall comprising a plurality of superimposed alternate layers of asphalt and felt laid on said roof deck in the space between said main portion and said wall, the outer margins of said layers having an edgewise abutting and cemented water-tight joint with said wall and the inner margins of at least some of said layers overlapping the edges of said main portion, said wall being uncovered upwardly from the top surface of said border.V

3. The combination of a roof deck and an upgins of some of said layers slanting downwardly and engaging said main portion, the topmost layer being formed of asphalt and having its inner edge merging into said facing layer of asphalt on said main portion, said wall being uncovered upwardly from the top surface of said border.

4. The combination with a roof deck and an upstanding wall connected thereto, of a composite main portion of roofing material covering the area of said roof deckto a point remote from the wall, leaving a space between said main portion and walls a border for connecting said roofing material to the wall comprising a coating of asphalt on the roof in the space between said main portion and said wall, a layer of fibrous material over said asphalt with its outer edge abutting against the wall and its inner edge positioned adjacent the outer edge of said main-portion, a layer of asphalt overlying said fibrous material and said edge of said main portion, a strip ci fibrous material overlying the jointbetween said main portion and said fibrous layer, a layer of asphalt overlying said strip of fibrous material and having its outer edge abutting against the wall and its inner edge curving downwardly over the inner edge of saidstrip and directly engaging said main portion, and a'plurality of alternatelayers of fibrous material and asphalt superimposed on said rst-named asphalt layer, the outer margins of said last-named layers having an edgewise abutting and water-tight sealed contact with the wall and their inner margins being curved downwardly, the topmost layer thereof comprising asphalt and having its inner edge in engagement with said main portion, said wall being uncovered upwardly from the top surface of said border.

5. A roong construction comprising va roof deck having a parapet at one edge thereof, `a plurality of superimposed alternate layers of asphalt and felt covering the area of the roof deck to a point remote from the parapet, and a border linner edges oi a plurality of said plies overlapping the outer edges of the first-named layers,

and each of a plurality of said plies of the border construction overlapping the inner edge of the next lower layer, said parapet being uncovered upwardly from the top surface of said border.

EDWARD T. PARSONS.v H. W. SAWYER.

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