Coilable roof drip edge

A roof drip edge for application between the outer roofing material and roof board along the roof edge fascia board having a depending web which is connected by a flexible joint to the cover flange of the drip edge which fits between the roofing material and roof board. In this manner the web may be folded against the cover flange with the cover flange and web being formed of a material sufficiently flexible to allow the flange to be coiled upon itself with the web folded against the flange.

SUMMARY OF THE INVENTION 
This invention relates to a roof drip edge which is installed along the 
fascia edge of a roof for the purpose of providing a clean drip surface 
for roof runoff and to prevent water and ice from working back up under 
the shingles of the roof. 
Heretofore, roof drip edges have been formed of aluminum or galvanized 
steel, and generally come in ten foot lengths. Due to their length and 
material composition, such edges are difficult to handle and to install 
and are also easily dented or bent. Such dented or bent edges when 
installed can be unattractive and can form undesirable gaps, which allows 
water to work its way back up under the roofing shingles. Roof drip edges 
of rigid plastic material have also been recently used in order to 
eliminate the denting and bending which occurs in metal edges. Such 
plastics edges which are cut into specific lengths, normally ten feet, are 
still difficult to handle and to install and have a tendency to break or 
crack in cold weather. 
The roof drip edge of the following described invention is formed of a 
material having sufficient flexibility to allow it to be coiled upon 
itself and has its component parts connected by flexible joints which 
allow the edge to be flattened after manufacture and coiled for ease of 
shipping and storage as well as application to the roof. Such coiled drip 
edge may be any convenient length for the desired application, such as 160 
or more feet (the average amount required for a house), which will enable 
the drip edge to be carried in its coiled form to the roof and uncoiled 
along the roof edge and thereafter cut to a proper length. The component 
parts of the cut to length drip edge can then be unfolded and the drip 
edge properly applied along the edge of the roof in a simple and rapid 
manner. In the manufactured housing industry, the coiled drip edge may be 
applied to the housing from reels. 
Accordingly, it is a purpose of this invention to provide a roof drip edge 
which can be applied along the edge of the roof in coiled form. 
Another object of this invention is to provide for a roof drip edge which 
is of economical construction and of simple application. 
Another object of this invention is to provide for a roof drip edge which 
may be stored for inventory in a compact, easily managed manner. 
Still another object of this invention is to provide a seamless roof drip 
edge. 
Other objects of this invention will become apparent upon a reading of the 
following description.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
The following description is not intended to be exhaustive or to limit the 
invention to the precise form disclosed. Rather, it is chosen and 
described in order to best explain the principles of the invention and to 
enable others skilled in the art to utilize the invention. 
Drip edge 10 as illustrated in the drawings is of elongated form having a 
uniform cross sectional profile. This profile in its installed form is 
best illustrated in FIG. 1 and includes a cover flange 12, a web 14 and a 
lip 16. Web 14 is connected at one end to cover flange 12 by a flexible 
joint 18, and lip 16 is connected to the opposite end of web 14 by a 
flexible joint 20. 
Drip edge 10 may be formed from a variety of materials, each of which must 
have a sufficient flexibility to allow coiling of the drip edge upon 
itself. Such examples would be a flexible PVC, a combination of a more 
rigid PVC and a more flexible PVC which would be co-extruded with the more 
flexible PVC forming joints 18 and 20 interconnecting cover flange 12, web 
14, and lip 16. Also, the cover flange, web and lip may be formed of a 
thin metal such as copper or aluminum with flexible PVC being applied to 
form the joints between the cover flange, web and lip. 
Drip edge 10 is first formed in the profile which approximates its 
installed shape such as illustrated in FIG. 1. In this initial state, each 
strip of drip edge 10 may have a length of several hundred feet. Web 14 is 
folded against cover flange 12 causing bending of joint 18 and lip 16 is 
folded against cover flange 12 causing bending of joint 20. This form, as 
illustrated in FIG. 4, is then rolled as indicated in FIG. 3 so as to coil 
cover flange 12 upon itself into the form shown in FIG. 2 for purposes of 
storage and transportation to the building or use site. 
Drip edge 10 is preferably applied before the roof is shingled. It may, 
though, be utilized for existing roofs in which case, cover flange 12 is 
slid between the overlying roofing material and underlying roof board or 
applied over the existing roofing material prior to re-roofing. In 
describing its usual application, the coiled drip edge 10 is carried upon 
the roof and unrolled over the existing roof board 24. Roof board 24 can 
be in a variety of forms such as plywood sheeting and planking. The 
unrolled drip edge is then cut to length and web 14 extended and placed in 
an overlapping relationship relative to the fascia board 26 which extends 
along the roof edge. Fascia board 26 may be appropriately clad by covering 
28. After being so applied along the edge of the roof, edge 10 may be 
stapled or nailed in position by having fasteners applied through the 
cover flange 12. If desired, edge 10 may be attached along the roof edge 
as the coiled edge is unrolled. Outer roofing material, such as shingles 
30, is then applied over cover flange 12 and roof board 24. It is 
preferable in forming web 14 to orient the web relative to cover flange 12 
at a general perpendicular or right angle to the cover flange so that when 
edge 10 is applied over the roof edge and web 14 drawn into contact with 
the underlying fascia board, there is an applied outward pressure upon web 
14 which causes the web to biased inwardly against the fascia board or its 
covering 28, thus creating an improved seal between the web and the fascia 
board. 
It is to be understood that the invention is not to be limited to the 
details above given, but may be modified within the following claims.