PL211524B1 - Window frame of roof window with water draining channel - Google Patents

Abstract

The window frame according the invention consists of longitudinal elements connected to form a frame, usually a rectangular one. Along the whole inner circumference, or along the lower half of the inner circumference, the window frame is provided with flat faying surfaces (4), which are arranged on one plane, below the external, upper surface of the window frame. The faying surfaces (4) of the window frame mate with the corresponding faying surfaces of the window leaf frame and the gasket located between them. In the bottom element (2) of the window frame, advantageously on the extension of the side faying surfaces (4), there are transversal through channels (6) with an inlet opening arranged on the plane of the inner side wall and an outlet opening fitted with a throating (8), which protrudes out of the external side wall of the element (2). The outlet opening with the throating (8) is located above the upper surface of the rafter, so that the drained water flows out on the initial roofing foil.

Description

REPUBLIC

POLAND

(12) PATENT DESCRIPTION (19) PL (11) 211524 (13) B1 (21) Application number: 379508 (51) Int.Cl.

E06B 7/14 (2006.01) E04D 13/03 (2006.01)

Patent Office of the Republic of Poland (22) Date of filing: April 21, 2006 (54)

Roof window frame with a water drainage channel

(43) Application was announced: (73) The right holder of the patent: FAKRO PP SPÓŁKA Z OGRANICZONĄ October 29, 2007 BUP 22/07 RESPONSIBILITY, Nowy Sącz, PL (45) The grant of the patent was announced: (72) Inventor (s): May 31, 2012 WUP 05/12 WACŁAW MAJOCH, Nowy Sącz, PL

PL 211 524 B1

Description of the invention

The subject of the invention is a frame for a roof window equipped with a channel for draining water from the condensed steam condensing on the cold external elements of the window, flowing down by gravity and accumulating in the recess along the lowest element of the frame.

The roof window frame has the shape of a several-element frame, usually a quadrangular one, set in a sloping roof. Along the inner periphery, the frame frame has rebate surfaces lying in one plane below the upper outer surface of the frame. Depending on the type of the roof window, the rebate surfaces of the casing are located along all elements of the frame of the frame and constitute a closed circumference, or are made only along the lower half of the internal circumference of the frame, from the hinge position in the pivot window.

Manufacturers of roof windows strive to achieve maximum tightness of windows in the closed position, therefore modern windows are equipped with ventilation ducts and the function of micro-openings of the window sash to ensure the desired air exchange in the room with the window closed.

In winter, when the temperature of the atmospheric air is much lower than the temperature inside the rooms, warm and humid air flows from the room to the outside, as a result of infiltration or micro-opening of the wings, and the water vapor contained in the warm air condenses on the external, cold parts frame and sash, as well as on the underside of metal cover elements that protect the window against wind, rain and snow. Condensed water flows down the window and accumulates along the bottom frame element of the frame axis, rebated in the recess, and then seeps into the room, which may lead to damp walls, and may damage the varnish coatings and cause deformation of the window elements , especially wooden ones, due to their dampness. In order to prevent these adverse effects, it is necessary to safely drain the running water and prevent its accumulation in the recess along the bottom element of the frame.

A skylight is known (WO2005 / 049951) provided with circumferential drainage grooves along the top and two side frame members. Drainage grooves are made on the outer side of the tight connection between the sash and the frame, while the drainage grooves along the side elements of the frame do not lie in one plane, but are arched upwards in the lower section so that they connect steplessly with the upper, outer surface of the lower element door frame. Water flowing down the side drainage grooves flows onto the roof cladding through the upper, external surface of the lower frame element.

Such a solution is advantageous for use in windows made of plastic by casting molding, while it is not advantageous for use in windows made by longitudinal processing, especially in wooden windows.

The casing according to the invention consists of longitudinal members joined to form a frame, usually quadrangular. The frame of the frame, along part of the internal circumference or its entire length, has flat rebate surfaces, which lie in one plane, below the upper, external surface of the frame. The rebate surfaces of the frame cooperate with the appropriate rebating surfaces of the window sash frame and a gasket placed between them. In the bottom frame element, preferably on the extension of the side rebates, transverse passage channels are provided, with an inlet opening located in the plane of the inner side wall and an outlet opening located on the outer side of the side wall of this element. The outlet of the channel ends with a drip which protrudes beyond the outer side wall of the bottom element and is above the upper surface of the rafters, so that the drained water flows onto the roofing foil placed under the actual roofing.

The skylight frame is shown in the exemplary embodiment in which Fig. 1 shows a view of a frame with a through-channel, and Fig. 2 shows a partial section through the bottom frame element provided with a through-channel.

The skylight frame has the shape of a rectangular wooden frame, which consists of upper 1, lower 2 and two side 3 elements connected to each other by means of flat dovetails. Along the inner circumference of the frame, the frame has flat rebate surfaces 4 lying in one plane, below the outer, upper surface of the frame. In the lower element 2, at the point of connection with the side elements 3, in the inner corners of the frame, rectangular elements 5 are mounted, with a through-channel 6, which is an extension of the rebate 4

And the inner wall 7 of the element 3. The upper surface of the element 5 is below the upper, outer surface of the bottom frame element 2. The inlet opening of the channel 6 lies in the plane of the inner side wall of the element 2, and the outlet opening ends with a drip 8 which protrudes beyond the outer side wall of the element 2 above the upper surface of the rafter. Between the drip 8 and the outer wall of the frame, a pre-covering foil is inserted, onto which the condensed water flows out of the window.

The element 5 is made of a water-resistant and low-temperature material and forms part of the upper tongue 9 of the frame side element 3.

Claims (3)

Patent claims A skylight frame, consisting of longitudinal elements connected to each other into a usually quadrilateral frame, having on the inner periphery side facing surfaces lying in one plane, below the upper outer surface of the frame, characterized in that in the lower element (2) of the frame, preferably on the extension of the rebate (4), along the side elements (3), there are transverse through-channels (6), with an inlet opening lying in the plane of the inner side wall, and an outlet opening ended with a drip (8) that protrudes beyond the outer side wall of the element ( 2) above the top of the rafters. 2. Frame according to claim 3. The casing as claimed in claim 1, characterized in that the channel (6) is provided in a frame element (5), preferably in the inner corners of the frame frame. 3. Frame according to claim 2. A frame element (3) according to claim 2, characterized in that the element (5) forms part of a finger (9) of the frame element (3)