(19)
(11) EP 1 211 362 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.07.2003 Bulletin 2003/30

(43) Date of publication A2:
05.06.2002 Bulletin 2002/23

(21) Application number: 01850200.5

(22) Date of filing: 22.11.2001
(51) International Patent Classification (IPC)7: E04B 7/18, E04C 3/17
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 30.11.2000 NO 20006092

(71) Applicant: Ohna, Bernt E.
1394 Nesbru (NO)

(72) Inventor:
  • Ohna, Bernt E.
    1394 Nesbru (NO)

(74) Representative: Axelsson, Nils Ake A.L. et al
L.A. Groth & Co.KB, Box 6107
102 32 Stockholm
102 32 Stockholm (SE)

   


(54) System of roof supports for providing a dormer and a roof support as part of the system


(57) A roof truss assembly as part of a dormer on a main roof. Each roof truss has a horizontal lower flange (11), a first top flange (22) and a second top flange (23). The first and second top flanges are joined at an apex (26) by their respective first ends, forming an angle between them that corresponds to the angle of the main roof. At least one of the top flanges (22, 23) has its other end at a distance from the lower flange (11) and is joined with a pier (28, 29) at this other end, which pier is oriented essentially parallel to the lower flange. The pier (28, 29) is joined with a support (12, 13) at the end opposite of the top flange (22, 23), which support is oriented essentially across the pier. The support (12, 13) is joined with the lower flange (11) at that end which is opposite of the pier (28, 29), so that the pier and the support (12, 13) form a projection from the at least one top flange (11). Several piers on adjacent roof trusses will together form the framework for a dormer.
A roof truss assembly for forming a dormer in a hip roof is also described.






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