EP3406818B1 - Dormer assembly - Google Patents
Dormer assembly Download PDFInfo
- Publication number
- EP3406818B1 EP3406818B1 EP18171456.9A EP18171456A EP3406818B1 EP 3406818 B1 EP3406818 B1 EP 3406818B1 EP 18171456 A EP18171456 A EP 18171456A EP 3406818 B1 EP3406818 B1 EP 3406818B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dormer
- pitched roof
- base frame
- underroof
- cheek
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 43
- 239000012528 membrane Substances 0.000 claims description 9
- 239000012774 insulation material Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 description 14
- 238000009434 installation Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 210000002105 tongue Anatomy 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 240000004752 Laburnum anagyroides Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/02—Roof-covering aspects of dormer windows
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/18—Special structures in or on roofs, e.g. dormer windows
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
- E04D13/1473—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof
- E04D13/1475—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs specially adapted to the cross-section of the parts extending above the roof wherein the parts extending above the roof have a generally rectangular cross-section
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
- E04D12/002—Sheets of flexible material, e.g. roofing tile underlay
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
- E04D13/147—Junctions of roof sheathings to chimneys or other parts extending above the roof specially adapted for inclined roofs
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
- E06B3/964—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces
- E06B3/968—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces characterised by the way the connecting pieces are fixed in or on the frame members
- E06B3/9684—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces characterised by the way the connecting pieces are fixed in or on the frame members by hooking protrusions on the connecting piece in openings of the frame member, e.g. by snap-locking
Definitions
- the present invention relates to a method of installing a dormer assembly comprising a dormer cheek, an upper section and a lower section, in a pitched roof, the pitched roof comprising an underroof, rafters and/or battens, wherein the upper section is adapted to adjoin the dormer cheek and the pitched roof; and the lower section is adapted to adjoin the dormer cheek and the pitched roof, the method comprises the steps of: mounting a base frame, comprising a bottom member, a first and a second side member and a top member, onto the rafters and/or battens, cutting a hole in the underroof, thereby creating flaps in the underroof extending along the bottom, top and side members of the base frame.
- the present invention furthermore relates to a dormer assembly that may be installed according to the invention.
- dormers where at least two windows are arranged substantially vertically, when mounted in an inclined roof.
- the at least two windows may be arranged at different angles relative to the roof.
- GB2256224A describes a dormer and a method for installing a dormer according to the preamble of claim 1.
- the opening in the roof will likely also reduce the thermal insulating properties of the roof.
- a method as mentioned in the introduction which further comprise a step of attaching the flaps of the underroof to the base frame members by folding the flaps such that they extend upwards substantially perpendicularly to the pitched roof along the inner side of the base frame members, said inner side facing the opening surrounded by the base frame.
- the attachment of the flaps may be performed by using nails, screws or staples.
- the method further comprises placing insulation material having a lambda value below 0.1 w/mk, preferably below 0.04 w/mk, below the side members and between the battens for supporting the base frame.
- the insulation material throughout this application may be made of mineral wool, glass wool or stone wool.
- the method may further comprise installing a top trimmer, a bottom trimmer and dormer cheeks onto the base frame, where the top trimmer is the trimmer arranged the highest on the roof.
- the trimmers are adapted to extend between the dormer cheeks.
- the top and bottom trimmer and dormer cheeks may comprise aluminum and/or wood.
- the dormer cheeks may comprise a frame structure substantially in the shape of a triangle, preferably an obtuse triangle.
- the end points of the triangle not being an obtuse angle may be cut off or cut short.
- the base of the triangle is mounted onto the base frame.
- a cross beam is placed connecting the two dormer cheeks and is parallel to the top and bottom trimmer.
- the cross beam may extend between the apexes of the obtuse angles of the triangular shaped frame structures.
- the cross beam divides the opening into two separate openings, where the opening adjacent to the top trimmer is called the upper opening, and the opening adjacent to the bottom trimmer is called the lower opening.
- the cross beam may be placed centrally relative to the top and bottom trimmer.
- the upper and lower openings are adapted to receive an upper and a lower section, respectively. Each of the upper and lower sections may comprise one or more windows.
- a base board may be placed adjacent to the top member of the base frame, extending along the width of the dormer assembly.
- the method further comprises installing an insulation wedge on top of the base board, adjacent to the dormer cheek, such that the wedge shape completes the angle of the triangle that has been cut short.
- the method may further comprise assembling at least one insulation frame comprising at least a top, bottom and two side members.
- the assembling may comprise the steps of connecting the two side members to the top member using a 90-degree angle connection clip at each connection, and connecting the bottom member to the two side members using a 90-degree angle connection clip at each connection.
- the insulation frame may comprise multiple top, bottom and side members, to be used when there are multiple windows. Multiple members of the same type may be connected using a straight connection clip.
- the straight connection clip may have a tongue extending perpendicularly from the straight connection clip to enhance stability. Preferably all connection clips are received in a receiving element adapted to snap lock the connection clip in the correct position.
- the method further comprises mounting the at least one insulation frame.
- the insulation frame may be adapted to fit with the interior sides of the dormer cheeks, cross beam and either the top or bottom trimmer, where the outer dimensions of the insulation frame substantially match the inner dimensions of the opening in which it is being installed.
- the insulation frame may be adapted to surround the window frames to be installed in the upper and lower sections.
- the method may further comprise installing at least one window frame inside the insulation frame.
- More than one window frame may be installed inside the insulation frame.
- the window frames When installing more than one window frame, the window frames may be attached to each other at their adjoining sides, before mounting them inside the insulation frame.
- a window frame installed in the upper opening/section is called an upper window frame, conversely a window frame installed in the lower opening/section is called a lower window frame
- the method may further comprise the step of installing an insulation layer between two adjacent window frames.
- the method may further comprise the step of mounting a waterproof underroof collar on the bottom trimmer and at the base of the dormer cheeks.
- the waterproof underroof collar may be fixed to the bottom trimmer and dormer cheeks by staples, screws or nails.
- the waterproof underroof collar may be provided as individual elements for the bottom frame and the dormer cheeks, or be formed as a single entity.
- the method may further comprise the step of installing an underroof membrane on the exterior of the dormer cheek.
- the underroof membrane may be made from cardboard, plastic or wood. Installation of the underroof membrane may be performed using staples, nails or screws. The underroof membrane may be provided integrally with the dormer cheek.
- the method may further comprise the step of installing a bottom frame flashing.
- the installation of the bottom frame flashing may be preceded by a step involving cutting the roof tiles to allow for the installation of the bottom frame flashing.
- the bottom frame flashing may be brought into engagement with the roof tiles by hand, thereby ensuring a sufficiently watertight transition from the dormer assembly to the roof.
- the method may further comprise making preparation for the installation of a top drainage gutter above the dormer.
- the top drainage gutter may be installed at an angle with respect to horizontal, whereby gravity can assist in diverting the water.
- the installation of the top drainage gutter may be performed by placing the top drainage gutter in the intended position and mark it with a pencil on the rafters of the roof. By cutting the rafters at the markings a portion of the rafters can be removed.
- the method may further comprise installing a waterproof collar around the window frames.
- the waterproof collar has an inner edge and an outer edge opposite of the inner edge.
- the inner edge of the waterproof collar is adapted for engagement with the window frames.
- the outer edge may be cut, whereby in situ modifications of the waterproof collar is possible.
- Adhesive tongues may be provided at the corners of the inner edge of the waterproof collar, whereby a tight connection between the waterproof collar and the window frames is ensured at the corners.
- a waterproof collar may be installed around the lower window frames and/or the upper window frames, respectively.
- the method further comprise installing a top drainage gutter into the opening prepared in the rafters.
- the top drainage gutter may be placed onto the waterproof collar installed around the upper window frames.
- the top drainage gutter may be fixed to the roof using screws.
- An upper outer edge of the waterproof collar installed around the upper window frames may extend beyond the top drainage gutter, whereby the excess material may be used to line the top drainage gutter.
- the underroof may also be placed in the top drainage gutter on top of the waterproof collar. To ensure that both the waterproof collar and the underroof is maintained in the top drainage gutter, they may be fixated using a clips which engage with the top drainage gutter.
- the top drainage gutter may be provided with telescopic means, whereby its length can be modified in situ allowing it to be used with dormer assemblies of various sizes.
- the method may further comprise installing a side flashing on the side of the dormer cheek.
- the side flashing may be provided with telescopic means allowing for in situ modifications of the length of the flashing.
- the side flashing may be attached to the battens using clips.
- the side flashing may be attached to the dormer cheek using nails or screws.
- the method further comprise installing a cover element on the outer side of the underroof membrane on the dormer cheek. Consequently, the structural integrity of the dormer cheek is improved.
- the cover element may be provided as a single cover element having dimensions matching the dimensions of the dormer cheek.
- the cover element may be provided as several cover elements adapted to be installed individually.
- the cover element may be installed by being slid into predefined grooves on an adjacent cover element, such that a cover element at least has a tongue or a groove or both on two opposing edges, such that they may be attached to each other.
- the cover element may be installed by screwing it onto the dormer cheek.
- the cover element may be made from aluminum, or another type of weather proof covering.
- the method further comprise installing a bottom frame cover on the window frame.
- the bottom frame cover may extend across all installed window frames.
- the bottom frame cover may be installed as a single entity or several entities for each window frame.
- the bottom frame cover may be attached using nails or screws.
- the method may further comprise installing a cover onto the side member of the window frame.
- the method may further comprise installing a U-shaped gutter on the side member of the window frame.
- the method may further comprise installing a top cover on the top of the window frame.
- the top cover may be attached to the window frame using screws or nails.
- the method may further comprise installing a side frame cover between the window frame and the dormer cheek.
- the side frame cover may be made of aluminum, wood, roofing felt or cardboard.
- the method may further comprise installing a top flashing above the top trimmer of the dormer.
- the top flashing may be made from aluminum, wood, roofing felt or cardboard.
- the top flashing may be aligned with the side rain gutter, such that a uniform flashing is formed around the dormer.
- the method further comprise placing roof tiles along the dormer assembly, whereby the roof tiles rest on the rain gutter.
- a height of the side rain gutter may be cut to allow the smooth placement of the roof tiles.
- Material may be placed on the side rain gutter allowing to adjust the height between the side rain gutter and the roof tile.
- Such material may be flexible foam.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Description
- The present invention relates to a method of installing a dormer assembly comprising a dormer cheek, an upper section and a lower section, in a pitched roof, the pitched roof comprising an underroof, rafters and/or battens, wherein the upper section is adapted to adjoin the dormer cheek and the pitched roof; and the lower section is adapted to adjoin the dormer cheek and the pitched roof, the method comprises the steps of: mounting a base frame, comprising a bottom member, a first and a second side member and a top member, onto the rafters and/or battens, cutting a hole in the underroof, thereby creating flaps in the underroof extending along the bottom, top and side members of the base frame. The present invention furthermore relates to a dormer assembly that may be installed according to the invention.
- It is known in the art to have dormers where at least two windows are arranged substantially vertically, when mounted in an inclined roof. The at least two windows may be arranged at different angles relative to the roof. When installing a dormer, a hole is made in the roof having dimensions substantially matching the dimensions of the dormer assembly.
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GB2256224A - When making a hole in the roof for installation of a dormer assembly, the water tightness of the roof is compromised.
- Furthermore, the opening in the roof will likely also reduce the thermal insulating properties of the roof.
- Therefore, it is an object of this invention to provide a method of installing a dormer assembly, while at the same time providing a watertight and insulated installation.
- Furthermore, it is an object to provide a method to install a dormer, which is easy to perform.
- In a first aspect, these and further objects are met by a method as mentioned in the introduction which further comprise a step of attaching the flaps of the underroof to the base frame members by folding the flaps such that they extend upwards substantially perpendicularly to the pitched roof along the inner side of the base frame members, said inner side facing the opening surrounded by the base frame.
- Consequently, a watertight transition from the roof to the base frame is obtained.
- The attachment of the flaps may be performed by using nails, screws or staples.
- In some embodiments the method further comprises placing insulation material having a lambda value below 0.1 w/mk, preferably below 0.04 w/mk, below the side members and between the battens for supporting the base frame.
- The insulation material throughout this application, may be made of mineral wool, glass wool or stone wool.
- In some embodiments the method may further comprise installing a top trimmer, a bottom trimmer and dormer cheeks onto the base frame, where the top trimmer is the trimmer arranged the highest on the roof. The trimmers are adapted to extend between the dormer cheeks.
- The top and bottom trimmer and dormer cheeks may comprise aluminum and/or wood.
- The dormer cheeks may comprise a frame structure substantially in the shape of a triangle, preferably an obtuse triangle. The end points of the triangle not being an obtuse angle may be cut off or cut short. The base of the triangle is mounted onto the base frame.
- In some embodiments of the method a cross beam is placed connecting the two dormer cheeks and is parallel to the top and bottom trimmer. The cross beam may extend between the apexes of the obtuse angles of the triangular shaped frame structures. The cross beam divides the opening into two separate openings, where the opening adjacent to the top trimmer is called the upper opening, and the opening adjacent to the bottom trimmer is called the lower opening. The cross beam may be placed centrally relative to the top and bottom trimmer. The upper and lower openings are adapted to receive an upper and a lower section, respectively. Each of the upper and lower sections may comprise one or more windows.
- In some embodiments a base board may be placed adjacent to the top member of the base frame, extending along the width of the dormer assembly.
- In some embodiments the method further comprises installing an insulation wedge on top of the base board, adjacent to the dormer cheek, such that the wedge shape completes the angle of the triangle that has been cut short.
- Consequently, an insulated transition from the roof to the base frame is obtained.
- In some embodiments, the method may further comprise assembling at least one insulation frame comprising at least a top, bottom and two side members. The assembling may comprise the steps of connecting the two side members to the top member using a 90-degree angle connection clip at each connection, and connecting the bottom member to the two side members using a 90-degree angle connection clip at each connection.
- The insulation frame may comprise multiple top, bottom and side members, to be used when there are multiple windows. Multiple members of the same type may be connected using a straight connection clip. The straight connection clip may have a tongue extending perpendicularly from the straight connection clip to enhance stability. Preferably all connection clips are received in a receiving element adapted to snap lock the connection clip in the correct position.
- In some embodiments, the method further comprises mounting the at least one insulation frame. The insulation frame may be adapted to fit with the interior sides of the dormer cheeks, cross beam and either the top or bottom trimmer, where the outer dimensions of the insulation frame substantially match the inner dimensions of the opening in which it is being installed. The insulation frame may be adapted to surround the window frames to be installed in the upper and lower sections.
- In some embodiments, the method may further comprise installing at least one window frame inside the insulation frame.
- More than one window frame may be installed inside the insulation frame. When installing more than one window frame, the window frames may be attached to each other at their adjoining sides, before mounting them inside the insulation frame. A window frame installed in the upper opening/section is called an upper window frame, conversely a window frame installed in the lower opening/section is called a lower window frame
- In some embodiments the method may further comprise the step of installing an insulation layer between two adjacent window frames.
- Consequently, thermal exchange between the interior and the exterior is reduced, when more than one window frame is installed.
- In some embodiments the method may further comprise the step of mounting a waterproof underroof collar on the bottom trimmer and at the base of the dormer cheeks.
- Consequently, a watertight transition around the opening in the roof is obtained along the sides and the bottom of the opening.
- The waterproof underroof collar may be fixed to the bottom trimmer and dormer cheeks by staples, screws or nails. The waterproof underroof collar may be provided as individual elements for the bottom frame and the dormer cheeks, or be formed as a single entity.
- In some embodiments the method may further comprise the step of installing an underroof membrane on the exterior of the dormer cheek.
- Consequently, an improvement in the wind tightness is obtained.
- The underroof membrane may be made from cardboard, plastic or wood. Installation of the underroof membrane may be performed using staples, nails or screws. The underroof membrane may be provided integrally with the dormer cheek.
- In some embodiments the method may further comprise the step of installing a bottom frame flashing.
- Consequently, the water tightness from the window to the roof is improved.
- The installation of the bottom frame flashing may be preceded by a step involving cutting the roof tiles to allow for the installation of the bottom frame flashing.
- The bottom frame flashing may be brought into engagement with the roof tiles by hand, thereby ensuring a sufficiently watertight transition from the dormer assembly to the roof.
- In some embodiments the method may further comprise making preparation for the installation of a top drainage gutter above the dormer.
- Consequently, rainwater running down the roof can be diverted around the dormer assembly, thereby reducing the risk of water penetrating the installation.
- The top drainage gutter may be installed at an angle with respect to horizontal, whereby gravity can assist in diverting the water. The installation of the top drainage gutter may be performed by placing the top drainage gutter in the intended position and mark it with a pencil on the rafters of the roof. By cutting the rafters at the markings a portion of the rafters can be removed.
- In some embodiments the method may further comprise installing a waterproof collar around the window frames.
- Consequently, the space around the window frame is waterproofed.
- The waterproof collar has an inner edge and an outer edge opposite of the inner edge. The inner edge of the waterproof collar is adapted for engagement with the window frames. The outer edge may be cut, whereby in situ modifications of the waterproof collar is possible. Adhesive tongues may be provided at the corners of the inner edge of the waterproof collar, whereby a tight connection between the waterproof collar and the window frames is ensured at the corners. A waterproof collar may be installed around the lower window frames and/or the upper window frames, respectively.
- In some embodiments the method further comprise installing a top drainage gutter into the opening prepared in the rafters.
- The top drainage gutter may be placed onto the waterproof collar installed around the upper window frames. The top drainage gutter may be fixed to the roof using screws. An upper outer edge of the waterproof collar installed around the upper window frames may extend beyond the top drainage gutter, whereby the excess material may be used to line the top drainage gutter. By lining the top drainage gutter with the waterproof collar, the waterproofness is increased further. The underroof may also be placed in the top drainage gutter on top of the waterproof collar. To ensure that both the waterproof collar and the underroof is maintained in the top drainage gutter, they may be fixated using a clips which engage with the top drainage gutter. The top drainage gutter may be provided with telescopic means, whereby its length can be modified in situ allowing it to be used with dormer assemblies of various sizes.
- In some embodiments the method may further comprise installing a side flashing on the side of the dormer cheek.
- Consequently, excess rainwater can be prevented from entering the opening from the side of the dormer assembly.
- The side flashing may be provided with telescopic means allowing for in situ modifications of the length of the flashing. The side flashing may be attached to the battens using clips. The side flashing may be attached to the dormer cheek using nails or screws.
- In some embodiments the method further comprise installing a cover element on the outer side of the underroof membrane on the dormer cheek. Consequently, the structural integrity of the dormer cheek is improved.
- The cover element may be provided as a single cover element having dimensions matching the dimensions of the dormer cheek. The cover element may be provided as several cover elements adapted to be installed individually. The cover element may be installed by being slid into predefined grooves on an adjacent cover element, such that a cover element at least has a tongue or a groove or both on two opposing edges, such that they may be attached to each other. The cover element may be installed by screwing it onto the dormer cheek. The cover element may be made from aluminum, or another type of weather proof covering.
- In some embodiments the method further comprise installing a bottom frame cover on the window frame.
- The bottom frame cover may extend across all installed window frames. The bottom frame cover may be installed as a single entity or several entities for each window frame. The bottom frame cover may be attached using nails or screws.
- In some embodiments the method may further comprise installing a cover onto the side member of the window frame.
- In some embodiments the method may further comprise installing a U-shaped gutter on the side member of the window frame.
- Consequently, the excess rainwater can be directed off of the window frame.
- In some embodiments the method may further comprise installing a top cover on the top of the window frame.
- The top cover may be attached to the window frame using screws or nails.
- In some embodiments the method may further comprise installing a side frame cover between the window frame and the dormer cheek.
- Consequently, the structural integrity of the dormer cheek is enhanced.
- The side frame cover may be made of aluminum, wood, roofing felt or cardboard.
- In some embodiments the method may further comprise installing a top flashing above the top trimmer of the dormer.
- Consequently, rainwater is diverted away from the dormer assembly and the water tightness is improved.
- The top flashing may be made from aluminum, wood, roofing felt or cardboard. The top flashing may be aligned with the side rain gutter, such that a uniform flashing is formed around the dormer.
- In some embodiments the method further comprise placing roof tiles along the dormer assembly, whereby the roof tiles rest on the rain gutter.
- Consequently, a water and wind tight transition from the roof to the dormer assembly is achieved.
- A height of the side rain gutter may be cut to allow the smooth placement of the roof tiles. Material may be placed on the side rain gutter allowing to adjust the height between the side rain gutter and the roof tile. Such material may be flexible foam.
- In the following, the invention will be described in further detail with reference to the drawings in which:
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Fig. 1 is a perspective view of a dormer assembly according to an embodiment of the invention, -
Figs. 2a to 7 are perspective views of embodiments of method steps according to the invention. -
Fig. 1 shows adormer assembly 101 comprising alower section 131 and anupper section 133. The twosections cross beam 135, which extends between the apexes of an obtuse angle of twodormer cheeks 105. In both thelower section 131 and theupper section 133, threewindow frames 151 are installed. A flashing system including a side flashing 111 and atop flashing 113 are used for collecting, draining e.g. rain water around and away form thedormer 101. A side flashing 111 is installed at the base of thedormer cheek 105. Atop flashing 113 is installed above theupper opening 133, whereby the side flashing 111 and thetop flashing 113 are connected at their ends. A bottom frame flashing 115 is installed below thelower section 131. -
Fig. 2a shows an embodiment of the method where anopening 202 is made in aroof 201 comprising anunderroof 203, and theopening 202 is also made in theunderroof 203. Abase frame 205 is arranged around theopening 202, thebase frame 205 comprises atop member 253, abottom member 255 and twoside members underroof 203 extending into theopening 202 is cut in fourseparate flaps knife 293. Each of the fourflaps respective base frame 205member staple gun 291. Theflaps inner side 256 of the base frame members. -
Fig. 2b shows an embodiment of two substantially triangular shapedframe structures 241 for the dormer cheeks. Theframe structures 241 form an obtuse triangle. Theframe structures 241 comprise awooden frame 242, whereinsulation 243 is provided within thewooden frame 242 and an exterior facingpanel element 244 is attached to thewooden frame 242. Across beam 245 extends between the apexes of the obtuse angles of the triangular shapedframe structures 241. Furthermore, a wedged shaped piece ofinsulation 246 is positioned above the upper section of thedormer assembly 101, in parallel to thetop member 253 of the base frame. -
Fig. 3 shows an embodiment of the method where theunderroof 203 has been attached to thebase frame 205. At least one insulatingmember 307 is positioned between theside members 251a-b of thebase frame 205 and theunderroof 203. -
Fig. 4a-b shows an embodiment of an insulatingframe 401.Fig. 4a shows an embodiment of a straightconnection insulating frame 401. The insulatingframe 401 comprises twoframe elements 411, which are connected using astraight connection clip 413. This type of connection is used when several windows are adjoining each other.Fig. 4b shows an embodiment of an angled connectioninsulating frame 401. The insulatingframe 401 comprises twoframe elements 411, which are connected using anangled connection clip 413. Atongue 415 of insulation material is adapted to cover theconnection clip 413, whereby an improved insulation is achieved. -
Fig. 5 shows an embodiment of adormer assembly 101 installed in aroof 201. Awaterproof underroof collar 505 is installed at the base of thedormer cheeks 244 and onto thebottom trimmer 535. In the embodiment offig. 5 anexterior underroof membrane 537 is covering theframe structure 241. Theexterior underroof membrane 537 is attached to the exterior side of thedormer cheek 105 using astable gun 291. -
Fig. 6a-c shows an embodiment of a method of installing adrainage gutter 633 between a sealingcollar 631 and theunderroof 203.Fig. 6a shows asealing collar 631 arranged on a roof batten 213 of aroof 201. The sealingcollar 631 extends beyond the roof batten 213 into an opening cut in aroof rafter 215. Adrainage gutter 633 is arranged onto the sealingcollar 631 and theunderroof 203 of theroof 201 is cut.Fig. 6b shows thesealing collar 631 being arranged in thedrainage gutter 633.Fig. 6c shows theunderroof 203 of theroof 201 being arranged on top of thesealing collar 631 in thedrainage gutter 633. Theunderroof 203 and thesealing collar 631 is fixed in thedrainage gutter 633 using aclip 635. -
Fig. 7 shows an embodiment of a method of installing adormer assembly 101 in aroof 201. Multiple cover elements 751-754, are installed by mounting atop cover element 751 onto adormer cheek 731, and then sliding the second mosttop cover element 752 into thetop cover element 751, and sequentially mounting the remainingcover elements tongue 755 and/or agroove 756, such that they are easily joined.
Claims (10)
- Method of installing a dormer assembly (101) comprising a dormer cheek (105), an upper section (133) and a lower section (131), in a pitched roof, the pitched roof comprising an underroof (203), rafters (215) and/or battens (213), wherein the upper section (133) and the lower section (131) are adapted to adjoin the dormer cheek (105) and the pitched roof, the method comprises the steps of:- mounting a base frame (205), comprising a bottom member (255), a first and a second side member (251a, 251b) and a top member (253), onto the rafters (215) and/or battens (213),- cutting a hole in the underroof (203), thereby creating flaps (231a, 231b, 233, 235) in the underroof (203) extending along the bottom (255), top (253) and side members (251a, 251b) of the base frame (205),- characterized in that the method further comprises the step of attaching the flaps (231a, 231b, 233, 235) of the underroof (203) to the base frame members by folding the flaps (231a, 231b, 233, 235) such that they extend upwards substantially perpendicularly to the pitched roof along an inner side (256) of the base frame members, said inner side facing the opening surrounded by the base frame.
- Method according to claim 1, further comprising placing insulation material having a lambda value below 0.1 w/mk, preferably below 0.04 w/mk, below the side members (251a, 251b) and between the battens (213) for supporting the base frame (205).
- Method according to any one of the preceding claims, wherein the dormer cheek (105) comprises a triangular frame structure (241) covered with an exterior facing panel element (244), the method comprising providing the exterior facing panel element (244) with an exterior underroof membrane (537).
- Method according to any one of the preceding claims, wherein the lower section (131) and/or upper section (133) comprise(s) more than one window, the method further comprising placing insulation material having a lambda value below 0.1 w/mk, preferably below 0.04 w/mk, between each of the windows.
- Method according to any one of the preceding claims, comprising providing the dormer cheek (105) with a weatherproof cover, wherein the weatherproof cover is divided into two or more cover elements (751, 752, 753, 754) having at least four sides, wherein one or two sides of two opposing sides of each of the cover elements are provided with at least one of a tongue (755) and/or a groove (756) and are adapted to extend perpendicularly to pitched roof, wherein the cover elements (751, 752, 753, 754) are positioned in its mounted position by pushing the cover elements (751, 752, 753, 754) downwards in a direction perpendicularly to the roof such that a tongue (755) on one cover element is adapted to slide in a groove (756) of an adjacent cover element.
- Pitched roof comprising a dormer assembly (101) comprising a dormer cheek (105), an upper section (133) and a lower section (131), wherein the upper section (133) and the lower section (131) are adapted to adjoin the dormer cheek (105) and the pitched roof, and the pitched roof comprises an underroof (203), rafters (215) and/or battens (213) and the dormer assembly (101) comprising a top member (253), a bottom member (255), a first and a second side member (251a, 251b) constituting a base frame (205), characterized in that the underroof (203) comprises flaps (231a, 231b, 233, 235) attached to the base frame members such that they extend upwards substantially perpendicularly to the pitched roof along the inner side (256) of the base frame members, said inner side facing the opening surrounded by the base frame.
- Pitched roof according to claim 6, further comprising insulation material having a lambda value below 0.1 w/mk, preferably below 0.04 w/mk, below the side members (251a, 251b) and between the battens (213) for supporting the base frame (205).
- Pitched roof according to any one of claims 6 or 7, wherein the dormer cheek (105) comprises a triangular frame structure (241) covered with an exterior facing panel element (244), wherein an underroof membrane (537) is provided on the exterior facing panel element (244).
- Pitched roof according to any one of claims 6-8, wherein the lower section (131) and/or upper section (133) comprise(s) more than one window, wherein insulation material having a lambda value below 0.1 w/mk, preferably below 0.04 w/mk, is positioned between each of the windows.
- Pitched roof according to any one of claims 6-9, wherein the dormer cheek (105) further comprises a weatherproof cover wherein the weatherproof cover is divided into two or more cover elements (751, 752, 753, 754) having at least four sides, wherein one or two sides of two opposing sides of each of the cover elements (751, 752, 753, 754) are provided with at least one of a tongue (755) and/or a groove (756) and the two opposing sides are adapted to extend perpendicularly to pitched roof, wherein a tongue (755) on one cover element is adapted to engage with a groove (756) of an adjacent cover element.
Priority Applications (1)
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PL18171456T PL3406818T3 (en) | 2017-05-24 | 2018-05-09 | Dormer assembly |
Applications Claiming Priority (1)
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DKPA201770374 | 2017-05-24 |
Publications (2)
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EP3406818A1 EP3406818A1 (en) | 2018-11-28 |
EP3406818B1 true EP3406818B1 (en) | 2019-06-12 |
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Family Applications (1)
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EP18171456.9A Active EP3406818B1 (en) | 2017-05-24 | 2018-05-09 | Dormer assembly |
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EP (1) | EP3406818B1 (en) |
DE (1) | DE202018100517U1 (en) |
PL (1) | PL3406818T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3828359A1 (en) | 2019-11-29 | 2021-06-02 | VKR Holding A/S | A roof window arrangement comprising a plurality of sash structures and a common frame, and including a covering assembly, and method of manufacturing such a roof window arrangement |
DE102020005431A1 (en) | 2020-09-05 | 2022-03-10 | Torsten Gross | skylight assembly |
EP4257772A1 (en) | 2022-03-31 | 2023-10-11 | VKR Holding A/S | A roof window arrangement comprising a plurality of window units and a common frame, and method of installing such a roof window arrangement |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110728023B (en) * | 2019-09-06 | 2023-11-21 | 久瓴(江苏)数字智能科技有限公司 | Tiger window component node generation method, device, computer equipment and storage medium |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE8905436U1 (en) * | 1989-04-29 | 1990-06-21 | Dickgreber, Hans, Dipl.-Ing., 4780 Lippstadt | Dormer window |
GB2256224A (en) * | 1991-05-31 | 1992-12-02 | Robert William Stringer | Dormer and method of installing a dormer roof |
CN1146228A (en) * | 1994-04-15 | 1997-03-26 | 波力希特股份有限公司 | Building element and method of mounting building element |
-
2018
- 2018-01-30 DE DE202018100517.0U patent/DE202018100517U1/en active Active
- 2018-05-09 PL PL18171456T patent/PL3406818T3/en unknown
- 2018-05-09 EP EP18171456.9A patent/EP3406818B1/en active Active
Non-Patent Citations (1)
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None * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3828359A1 (en) | 2019-11-29 | 2021-06-02 | VKR Holding A/S | A roof window arrangement comprising a plurality of sash structures and a common frame, and including a covering assembly, and method of manufacturing such a roof window arrangement |
DE102020005431A1 (en) | 2020-09-05 | 2022-03-10 | Torsten Gross | skylight assembly |
EP4257772A1 (en) | 2022-03-31 | 2023-10-11 | VKR Holding A/S | A roof window arrangement comprising a plurality of window units and a common frame, and method of installing such a roof window arrangement |
Also Published As
Publication number | Publication date |
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EP3406818A1 (en) | 2018-11-28 |
PL3406818T3 (en) | 2019-12-31 |
DE202018100517U1 (en) | 2018-07-12 |
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