FLASHING MEMBER AND FRAME FOR A ROOF-PENETRATING BUILDING PART

Abstract: A flashing frame for a roof-penetrating building part, in particular in a roof window frame, comprises mutually connected frame members (6, 12) of weather-shielding material for positioning along the sides (1-4) of the roof-penetrating building part adjoining the roofing. The frame members for positioning along sides (3, 4) of the roof-penetrating building member, which do not extend perpendicularly to the pitch of the roof, consist of flashing members (7) designed as L-profiles with a profile wall (8) for positioning at least partially under the roofing (5), and an upright profile wall (9) for positioning in abutment against the side of the roof-penetrating building part. Flashing members (7) are placed in the side frame members in extension of each other with mutual overlapping. The upright profile wall (9) is provided with a comparatively closely packed, substantially equidistant, transverse profiling (10) and with locking means (11) for mutual locking of the mutually overlapping parts of the neighbouring flashing members (7).

Description: 1 FLASHING MEMBER AND FRAME FOR A ROOF-PENETRATING BUILDING PART The present invention relates to a flashing member for a flashing frame for weather-shielding connection of a roof-penetrating building part to an adjacent roofing, said member comprising an L-profile with a first profile wall for positioning at least partially under the roofing and a second, upright profile wall for positioning along a side of the roof-penetrating building part facing the roofing. Flashing frames composed of flashing members of this type are known for instance from US-A-4951431 and SE-B-416072 for flashing of roof-penetrating building parts like chimneys, walls, etc. The invention aims in particular at providing an improved flashing frame of the type in question for weather-shielding mounting of the frame structure of a roof window in a pitched roof, in particular one with flat roofing, for instance slates, but may also be adapted to other types of roof-penetrating building parts like for instance chimneys, air shafts and the like. When mounting roof windows in such pitched roofs, it is i.a. known from DE-B-21 42 733 to use mutually overlapping frame members in the form of L-profiles in abutment against the sides of the window frame in parallel with the pitch of the roof . In this known design, the upright profile wall of the L-profiles has a comparatively low height, such that for its weather- shielding connection with a superjacent covering member on the frame side, a separate insert profile with hook- and/or bead-shaped engagement means is needed for sealing connection with the upright profile wall of the L-profile and the superjacent frame covering member, respectively. Though it is thereby possible to avoid the otherwise necessary securing of the upright wall of the L- profile to the frame side member, which mostly consists of wood, by means of screws or nails which are driven through the upright profile wall and which may give rise to a subsequent risk of water-penetration into the frame side member and possibly the roof structure itself, the construction becomes complicated and more expensive and the mounting is made difficult on account of the special, separate insertion profile. On this background, it is the object of the invention to provide a flashing member which is designed in such a manner that several individual members in a simple manner may be connected in exten- sion of one another under mutual interlocking for the formation of a continuous frame member, and which is at the same time simple in manufacture and easy to handle and mount on the building site without the use of screws, nails or the like fastening members for secur- ing to the roof-penetrating building part. To meet this object the flashing member according to the invention is characteristic in that the upright profile wall is provided with a profiling for engaging a corresponding profiling in the upright profile wall of an overlapping, longitudinally displaced neighbouring member in the flashing frame for preventing longitudinal displacement between said members, and is provided with integral locking means for locking the member relative to said neighbouring member. In this embodiment of the flashing member, the profile may be manufactured by punching of sheet flashing material, for instance aluminium sheet material, followed by profiling, which may advantageously consist of a pleating or corrugation with com- paratively closely packed foldings or waves of the upright profile wall. On the installation site, the L- profiles are easily and quickly connected in extension of each other under mutual overlapping, and the overlapping parts of the two neighbouring members are mutually interlocked by means of the locking means which may advantageously be designed as protruding, manually bendable locking flaps. Advantageous embodiments of such a flashing member are stated in the dependent claims 2 - 9. Moreover, the invention relates to a flashing frame for weather-shielding connection of a roof- penetrating building part to an adjacent roofing, in particular in a pitched roof, which frame comprises mutually connected frame members of weather-shielding material for positioning along the sides of the roof- penetrating building part, said sides facing the roofing. According to the invention such a flashing frame is characterized in that frame members for positioning along sides of the roof-penetrating building member which do not extend perpendicularly to the pitch of the roof consist of flashing members positioned in extension of each other with mutual overlapping as explained above . In addition to the advantages described above, this design of the side frame members makes a sealing connection possible of the throughgoing frame members for positioning against the sides of the roof-penetrating building part which are perpendicular to the pitch of the roof, for instance top and bottom members of the frame for a roof window. The invention will now be explained in the following with reference to the schematic drawing, in which Fig. 1 is a perspective view of an embodiment of a flashing frame comprising side frame members consist- ing of flashing members according to the invention, Fig. 2 an embodiment of a flashing member according to the invention, and Fig. 3 an example of a side frame member consist- ing of flashing members as shown in Fig. 2 mounted along one side of a roof-penetrating building part in the form of a chimney in connection with a roof covering of slates. In the embodiment shown in Fig. 1 of a flashing frame for weather-shielding connection of the frame structure of a roof window, said frame structure consisting of top and bottom members 1 and 2 and side members 3 and 4 for a roofing consisting of slates 5, the flashing frame comprises a throughgoing bottom member 6 to be positioned against the frame bottom member 2 in its entire extension and secured thereto, for instance by means of screws . For mounting against the frame side members 3 and 4, the flashing frame comprises side frame members composed of flashing members 7 in the form of L-profiles which, as more clearly shown in Fig. 2, comprise a profile wall 8 in parallel with the roof and which at least partially may be inserted under the slate 5, and an upright profile wall 9 provided with a transverse profiling, for instance as shown in the form of a pleating with comparatively, closely packed, equidistant foldings 10. According to the invention, the upright profile walls 9 are further at least at one end provided with locking means, preferably in the form of a protruding locking flap 11, which after the positioning of the members 7 in extension of one another under mutual overlapping may be manually bent over for locking of the overlapping parts of neighbouring members 7. The locking flap 11, which in the not bent posi- tion shown in Fig. 2, protrudes from the upright profile wall 9 in plane therewith, is provided with the same profiling as the upright wall 9 and with a width, which comprises for instance two to six of the foldings 10 of the pleating. In this manner an effective locking of the overlapping parts of the flashing members is obtained, such that the side frame members composed of the members are kept in close abutment against the frame side members 3 and 4 without being secured thereto by means of screws, nails or the like. After mounting of the members 7 in extension of one another against the frame side members 3 and 44, the flashing frame is finished by a throughgoing top member 12 which, as shown, may have a hood-like shape for partial overlapping of the upper flashing members 7 in each side frame member. As shown in Fig. 2, the profile wall 8 of the flashing member 7 intended for being positioned under the roofing may preferably be provided with corner recesses 16 of the same size and shape as the locking flaps 11, such that the flashing members 7 may be manufactured from a sheet material without any waste of material. In the embodiment shown in Fig. 2, the flashing member 7 is provided with two locking flaps 11 and corresponding thereto, the profile wall 8 is provided with two corner recesses 16. In this way the same design of the flashing member 7 may be used on all sides of a roof-penetrating building part which are not perpendicular to the pitch of the roof, and a correct overlapping in respect of water drainage is obtained between neighbouring members as will be seen from Fig. 3 , which shows the overlapping between two neighbouring members 7 with locking flaps 11a and lib in bent locking position for providing a side frame member for mounting against one side of a roof-penetrating building part in the form of a chimney 17. Furthermore, a longitudinal groove 14 may optionally be provided in the profile wall 8, in which groove a sealing member for sealing against the underside of the roofing may be placed, and the profile wall 8 may further have pre-made nailholes 15 for use in securing the flashing members to battens in the subjacent roof structure.

Claims: P A T E N T C L A I M S 1. A flashing member for a flashing frame for weather-shielding connection of a roof-penetrating building part (1 - 4, 24) to an adjacent roofing (5), said member (7) comprising an L-profile with a first profile wall (8) for positioning at least partially under the roofing (5) and a second, upright profile wall (9) for positioning along a side of the roof- penetrating building part (1 - 4, 24) adjoining the roofing, c h a r a c t e r i z e d in that the upright profile wall (9) is provided with a profiling (10) for engaging a corresponding profiling in the upright profile wall of an overlapping, longitudinally displaced neighbouring member in the flashing frame for preventing longitudinal displacement between said members and provided with integral locking means (11) for locking the member (7) relative to said neighbouring member. 2. A flashing member according to claim 1, c h a - r a c t e r i z e d in that said profiling (10 is a transverse profiling. 3. A flashing member according to claim 2, c h a - r a c t e r i z e d in that said transverse profiling (10) comprises a pleating or corrugation with compara- tively closely packed foldings or waves. 4. A flashing member according to claim 2 or 3 , c h a r a c t e r i z e d in that the locking means comprise a protruding, bendable locking flap (11) at at least one end of the member (7) . 5. A flashing member according to claim 4, c h a r a c t e r i z e d in that said locking flap (11) is bendable to a locking position by manual deformation. 6. A flashing member according to claim 4 or 5 , c h a r a c t e r i z e d in being provided with 8 locking flaps (11a, lib) at both ends. 7. A flashing member according to claim 4, 5 or 6 , c h a r a c t e r i z e d in that in said first profile wall (8) at the same end of the member as each locking flap (11) , a corner recess (16) is provided having the same size and shape as said locking flap (11) . 8. A flashing member according to one of the preceding claims, c h a r a c t e r i z e d in that in said first profile wall (8) a longitudinal groove (14) is provided for receiving a sealing member abutting the underside of the roofing. 9. A flashing member according to one of the preceding claims, c h a r a c t e r i z e d in that said first profile wall (8) is provided with pre-made nailholes for securing the member to a subjacent roof structure (18) . 10. A flashing frame for weather-shielding connection of a roof-penetrating building part (1 - 4, 24) to an adjacent roofing (5) , in particular in a pitched roof, which frame comprises mutually connected frame members (6, 7, 12) of weather-shielding material to be positioned along the sides (1-4) of the roof-penetrating building part, said sides adjoining the roofing, c h a r a c t e r i z e d in that frame members (7) for positioning along sides (3, 4) of the roof-penetrating building member which do not extend perpendicularly to the pitch of the roof consist of flashing members (7) according to one of the preceding claims, siad flashing members being positioned in extension of each other with mutual overlapping. 11. A flashing frame according to claim 10, c h a r a c t e r i z e d in that for positioning against sides (1,2) of the roof-penetrating building part, which sides extend perpendicularly to the pitch of the roof, the flashing frame comprises throughgoing frame members (6, 12) for abutment against said sides in their entire extension. 12. A flashing frame according to claim 11, c h a r a c t e r i z e d in that a frame member (12) for positioning against an upperside (1) of the roof- penetrating building part is designed as a hood-like member for overlapping the upper flashing member (7) in each adjacent side frame member.

Inventors: JACOBSEN PER, KRISTENSEN JENS TROELS PLESNER, JACOBSEN, PER, KRISTENSEN, JENS, TROELS, PLESNER
Applicants: JACOBSEN PER, KRISTENSEN JENS TROELS PLESNER, VELUX IND AS, JACOBSEN, PER, KRISTENSEN, JENS, TROELS, PLESNER, VELUX INDUSTRI A/S
Application year: 1999
Main classification: E04D13
IPC codes: E04D13