The present invention relates to a flashing for weather proof sealing of the transition between a roof covering and a constructional element rising from a root surface, such as a curb of a skylight, said flashing comprising an elongated flashing profile strip with a first profile portion for abutment against the constructional element and a second profile portion for extending along the roof surface, said first profile portion having a defined width transverse to a longitudinal direction of the profile strip.
Flashings are commonly used e.g. to provide a weather proof sealing between a roof surface and the frame or curb of a roof window or skylight.
Roof windows are delivered by a manufacture as a complete construction including a frame for mounting on the construction of the roof. In such a case it is possible for the manufacture to deliver also a flashing that will fit the frame.
However skylights are often delivered as a sash with glazing but without a frame. Instead the person building-in the skylight will build on-site a curb for the skylight from timber of dimensions 2″×6″ (inches) or 2″×4″ (inches). In such a case it has hitherto not been possible to provide a flashing that will fit the curb in all cases, because the selection of timber is more or less arbitrary.
Providing a flashing that will fit a curb of 2″×6″ (inches) timber will entail the need for cutting off an outer part of the first profile portion of the profile strip if 2″×4″ (inches) timber is used for the curb. This in turn entails the risk of to much being cut of, the flashing being as a consequence not able to provide a weather proof sealing. Another situation even worse would be if a flashing intended for a curb of 2″×4″ (inches) timber was used for a curb of 2″×6″ (inches) timber because the flashing would then definitely be to low.
In view of the above it is an object of the invention to provide a flashing for weather proof sealing of the transition between a roof covering and a constructional element rising from a roof surface, such as a curb of a skylight of a so-called curb and lens construction, said flashing comprising a sheet material flashing profile strip divided by a bend into a first profile portion for abutment against the constructional element and a second profile portion for extending along the roof surface, said bend extending in a longitudinal direction of the strip, said first profile portion being laterally defined by said bend and a free lateral side edge running in parallel to said bend, the sheet material of said first profile portion being continuous from the bend to the free lateral side edge, wherein the first profile portion comprises a separation line running in the longitudinal direction of the profile strip in a specific distance from the free lateral side edge, said separation line facilitating separation of an outer part of the first profile portion.
Examples of the invention will now be explained below with reference to the very schematical drawing, in which
a is a perspective view of a piece of profile strip and a cross section of its first profile portion in a preferred embodiment; and
It should be noted that ‘lower’ and ‘intermediate’ in relation to the shingles refers to their position on the roof surface, i.e. below or beside the curb 1.
The flashing frame 10 may be mounted on a curb 1 as an alternative to the flashing shown in FIG. 1. Thus the flashing frame 10 would be mounted subsequently to the mounting of the lower shingles 7a shown in
The flashing side parts and bottom parts shown in
The separation line 16 and the outer part 17 of the first profile portion 14 is indicated in
a show a strip in which a second score line 19 is provided in the outer part 17 of the first profile portion 14. The second score line 19 running parallel to the separation line 16, which in this case is also a score line thus providing a tear strip 20 between the two score lines. The tear strip 20 may be grabbed e.g. by pliers and torn out thus separating the outer part 17 from the first profile portion 14.
a show a strip whereby a string 21 e.g. of steel is embedded in, e.g. rolled into, the material of the first profile portion 14. Thus the string 21 defines the separation line. By pulling the string 21 the outer part 17 may be separated from the first profile portion 14.
A rectilinear outer part 22 of the flashing top part 9 or the top part 9′ of the flashing frame 10 is connected to the to their respective first profile portions through a bead 23 facilitating bending down the outer part 22 as indicated by arrow 24 in stead of separating the outer part 22 of the flashing top part. It will however be appreciated that separation could be applied to the outer part of the flashing top part also.
It will be appreciated that although the invention has above been described in relation to specific embodiments the scope of protection is not limited to those embodiments, but may be varied within the scope of the claims.
Number | Name | Date | Kind |
---|---|---|---|
2851973 | Lenke et al. | Sep 1958 | A |
3838544 | Hindall | Oct 1974 | A |
4563847 | Hasty | Jan 1986 | A |
5319898 | Freiborg | Jun 1994 | A |
6269591 | Kelly | Aug 2001 | B1 |
6374549 | Mayle | Apr 2002 | B1 |
6383594 | Weinstein et al. | May 2002 | B2 |
6401402 | Williams | Jun 2002 | B1 |
20040103592 | Edvardsen | Jun 2004 | A1 |
Number | Date | Country |
---|---|---|
WO 0242578 | May 2002 | WO |
Number | Date | Country | |
---|---|---|---|
20040111981 A1 | Jun 2004 | US |