US1511884A - Pipe flashing for roofs - Google Patents

Description

O. A. HEPF'E-S PIPE FLASHING FOR ROOFS Filed Anril 1'7 1920 rammed our. M, ea.

o'r'ro A. names, or cnroaeo, rumors, assxeuon To THE aroiimnson oorriranv, or LOCKLAND, 01110, a CORPORATION or omo.

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Application filed April lit 12 0. Serial No. 374,675.

To all-.whom it may concern: a

Be it known that I; O'r'ro A. HEPPES, a citizen of'theUnited States, residing at Chicago, in the county of Cook and State of Illinois, have invcntedvcertain new and useful Improvements in Pipe Flashings for Roots, of which the following is a specification.

The invention relates to pipe flashing for roofs. v v i One of the objects is to provide a weatherproof seamless pipe flashing for roots which may be seale tothe pipe at its upper edge to prevent entrance of water between the pipe and the protector. Another object is to provide a flashing, molded of a single piece of plastic material, which becomes softened by application of heat at a temperature above that to which it will be subjected in ordinary use, and while in plastic state may be cemented at its upper end into close contact with the r p In the accompanying drawingsv Fig; 1 shows a section of the flashing placed over the pipe before its upper end is cemented to the pipe. y

2 shows it in completed form.

1g. 3 shows a side elevation in reduced slze.

In all of the views the same reference f lam ers are employed to indicate similar parts. i I I In thedrawings 5 is an ordinary roofcovcred with shingles 6. 7 is a pipe, that passes thru the roof, such as a vent stack for a dalumbing system. The flashing consists of a tubular portion 8 with an integral flange part 9. The angular relation that these parts bear to each other is dependentupon M the pitch of the roof. The flange part 9 is of-course to be overlalin with shingles or therrOofing material on the upper side and the flange on the lower side must overlie the roofing material as shown. I e I The substance of, which the improved flashing is made is plastic and adhesive when heated to a suitable temperature although relatively stable at lower temperatures. i, a

t The device may be made of a suitable fiber base,-such as a felt sheet, incorporated with a plastic binder of a cementitious nature, such for example as asphalt or asphalt compounds similar in character and constituents to. that of which asphalt roofing is made but having a melting point, preferably, somewhat higher and exceeding 130 degrees- Such material may conveniently be formed into shape by use of suitable molds andby application" of pressure. Unless subjected to temperatures at which the composition becomes plastic and adhesive the, structure as a whole is relatively rigid, inelastic and non-adhesive. I

After the device is placed around the pipe, as shown in Fig. 1, a blowtorch 10 is applied to the upper end of the pipe part 8 and moved around the end until the asphalt becomesevenly heated whereupon it becomes plastic and adhesive or tacky so that it may be pressed into intimate contact with and made to closely conform to the shape of the enclosed pipe 7, as at 11, Fig 2. The material will stick tight to the pipe and prevent the entrance of wate r. This is a characteristic quality of asphalt. Neither ordinary heat or cold will have any objectionable effect upon the roof protector after it has been properly installed.

7 The flashing vmay also be used to protect the roof around chimneys or other conduit.

7 The protector has no visible seams and being made of a durable filler and an asphaltic adhesive will last as long as the roof.- c

Having described my invention what I claim as new and desire to secure by Letters Patent is v p 1. A flashing structure comprising a tubular portion and a flange made in a single piece of normally relatively inelastic rigid and anon-adhesive weatherproof material which becomes plastic andcementitious upon the application of heat above extreme atmospheric temperatures. I

2. A fiashingstructure comprising a tubular portion and a flange molded of a fiber reenforced weatherproof material which is stable" within normal ranges of atmospheric temperatures and which by applicatlon of heat above extreme atmospheric temperatures becomes moldable and adhesive.

3. A flashing structure comprising a tubular body portion and a flange integrally formed of a fiber reenforced asphalt and being relatively non-moldable and non-adhesive at temperatures below extreme atmosphe ic temperatures and becoming mold,

5 tively inelastic tube for surrounding said pipe and an integral obliquely disposed flange, said tube being cementitious and having its free end contracted about the pipe and made to adhere thereto after said structure is placed in position on a roof.

In testimony scribe my name.

whereof I hereunto subo'r'ro' A. HEPPES.

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