The invention relates to a roof tile (1, 2) for covering a surface in an overlapping manner, having a first support face (5) and a second support face (7), the first support face (5) being arranged on an upper side (6) of the roof tile (1, 2) in a region of a head-side end (3), and the second support face (7) being arranged on an underside (8) of the roof tile in a region of a foot-side end (4). At least the underside (8) of the roof tile (1, 2) has a hydrophobic impregnation (14) in the region of the second support surface (7). The invention further relates to a method for producing a roof tile (1, 2) of this kind.
E04D 1/16 - Roofing elements shaped as plain tiles or shingles, i.e. with flat outer surface of ceramics, glass or concrete, with or without reinforcement
E04D 13/00 - Special arrangements or devices in connection with roof coveringsRoof drainage
A press die for producing a clay roof tile, including a first die half and a second die half, which can move between a pressing position, in which they define a receiving space that represents the form of the finished roof tile, and a filling position, in which they are mutually spaced and the receiving space can be filled with a plastically deformable clay material. At least one of the first and the second die half has at least one depression which represents a projecting part of the finished roof tile; a first compression element is provided at the depression, and movable between an initial position, in which it is retracted in relation to the form of the finished roof tile, and a compacting position, in which some sections of the first compression element represent the surface of the finished roof tile.
B28B 3/00 - Producing shaped articles from the material by using pressesPresses specially adapted therefor
B30B 15/02 - DiesInserts therefor or mountings thereofMoulds
B28B 3/02 - Producing shaped articles from the material by using pressesPresses specially adapted therefor wherein a ram exerts pressure on the material in a moulding spaceRam heads of special form
The invention relates to a press die (20) for producing a roof tile (10) consisting of clay, comprising a first die half (22) and a second die-half (24), wherein the die halves (22, 24) can be moved relative to each other between a pressing position, in which the die halves (22, 24) substantially delimit a receiving space (30) that represents the form of the finished roof tile (10), the surface (34) of the first die half (22) and the surface (38) of the second die half (24) representing respective surfaces (12, 14) of the roof tile (10), and a filling position, in which the die halves (22, 24) are mutually spaced and the first and/or the second die half (22, 24) can be filled with a plastically deformable clay material (78). The first die half (22) and/or the second die half (24) has/have at least one depression (40) which represents a projecting part (18) of the finished roof tile (10), wherein a first compression element (52) is provided in and/or on the depression (40), said compression element being movable between an initial position, in which the first compression element (52) is retracted in relation to the form of the finished roof tile (10) and a compaction position, in which some sections of the first compression element (52) represent the surface (12, 14) of the roof tile (10).
B28B 3/00 - Producing shaped articles from the material by using pressesPresses specially adapted therefor
B28B 3/02 - Producing shaped articles from the material by using pressesPresses specially adapted therefor wherein a ram exerts pressure on the material in a moulding spaceRam heads of special form
4.
METHOD AND SYSTEM FOR PRODUCING A ROOF TILE, AND ROOF TILE
The invention relates to a method for producing a roof tile (100) from clay (32) comprising the following steps: providing the moist, unprocessed clay (32), drying the clay (32) down to a defined moisture content, grinding the dried clay (32) to form a clay material (168) of broken grains in a mill (20), removing an undersize, the grain size of which lies below a defined grain size band, and removing an oversize, the grain size of which lies above a defined grain size band, introducing the clay material (168) into a pressing mold (110), which represents the shape of the roof tile (100), and pressing the clay material (168) in the pressing mold (110), wherein the clay material (168) is compressed.
B28C 1/18 - Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom for comminuting
C04B 33/20 - Preparing or treating the raw materials individually or as batches for dry-pressing
B28B 17/02 - Conditioning the material prior to shaping
B28B 3/02 - Producing shaped articles from the material by using pressesPresses specially adapted therefor wherein a ram exerts pressure on the material in a moulding spaceRam heads of special form
42 - Scientific, technological and industrial services, research and design
Goods & Services
Mediation and conclusion of commercial transactions for
others; procurement of contracts [for others]; arranging of
contracts for the purchase and sale of goods and services,
for others; arranging of business introductions; commercial
intermediation services; arranging and placing of
advertisements; arranging of contracts, for others, for the
providing of services; data compilation for others; data
management services; computerised data verification;
collection of data; provision of an on-line marketplace for
buyers and sellers of goods and services; appointment
planning; confirming scheduled appointments for others. Providing access to web portals; providing access to
internet portals for third parties; telephone services;
hotline telephone services; data transmission and data
broadcasting; electronic data interchange services. Architectural consultancy in connection with building
materials; conducting technical project studies; preparation
of engineering reports; technical inspection and testing of
buildings and building materials; hosting of internet
portals.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Mediation and conclusion of commercial transactions for
others; Procurement of contracts [for others]; Procurement
of contracts for the purchase and sale of goods and
services, for others; Arranging of business introductions;
Commercial intermediation services; Arranging and placing of
advertisements; Arranging of contracts, for others, for the
providing of services; Data compilation for others; Data
management services; Computerised data verification;
Collection of data; Provision of an on-line marketplace for
buyers and sellers of goods and services; Appointment
scheduling services; Confirming scheduled appointments for
others. Provision of access to an internet portal; Providing access
to Internet portals for third parties; Telephone services;
Telephone communication services provided for hotlines and
call centers; Data transmission and data broadcasting;
Electronic data interchange services. Technical consultancy services regarding building materials;
Conducting technical project studies; Producing technical
engineering reports; Technical supervision and inspection in
the field of construction projects; Operation of Internet
portals (Hosting).
7.
METHOD FOR PRODUCING A ROOF TILE HAVING A WATER BARRIER AND ROOF TILE HAVING A WATER BARRIER SHAPED THEREON
The invention relates to a method for producing a roof tile having a water barrier, wherein the water barrier is shaped onto a roof tile blank, which is supplied onto a lower mould, of a shaping unit, with a shaped piece and a shaping stamp that can move in relation to same. The shaped piece is placed on an upper side of a top end of the roof tile blank, and the shaping stamp is pressed against the top end of the roof tile blank, such that material of the roof tile blank is pressed into a shaping mould of the shaped piece. The roof tile blank is also arranged below the shaping unit and the shaping unit is vertically lowered onto the roof tile blank. The invention also relates to a roof tile produced according to this method having a water barrier shaped thereon.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Mediation and conclusion of commercial transactions for others; Procurement of contracts [for others]; Arranging of contracts for the purchase and sale of goods and services, for others; Arranging of business introductions; Commercial intermediation services; Arranging and placing of advertisements; Arranging of contracts, for others, for the providing of services; Data compilation for others; Data management services; Computerised data verification; Collection of data; Provision of an on-line marketplace for buyers and sellers of goods and services; Appointment planning; Confirming scheduled appointments for others. Providing access to web portals; Providing access to Internet portals for third parties; Telephone services; Hotline telephone services; Data transmission and data broadcasting; Electronic data interchange services. Technical consultancy in connection with building materials; Conducting technical project studies; Preparation of engineering reports; Technical supervision and inspection; Operation of internet portals (hosting).
9.
ROOFING TILE AND METHOD FOR PRODUCING SUCH A ROOFING TILE
The invention relates to a roofing tile composed of concrete material and to a method for producing such a roofing tile, wherein the concrete material comprises a binder, a gravel, a light-weight aggregate, and added water and the roofing tile has at least one watercourse and a lateral interlocking joint consisting of a covering fold and a water fold, wherein, according to the invention, the ratio of water to binder is less than 0.3, the light-weight aggregate is composed of a material that is hydrophobic and/or not hygroscopic, the roofing tile has a density in the range of 1.6 g/cm3 to 1.9 g/cm3 after the hardening, wherein the roofing tile has a thickness of 5 mm to 9 mm, preferably 7 mm to 8 mm, in the highly loaded regions, preferably in the region of the watercourse. The roofing tile according to the invention can be economically produced in the extrusion method with low material costs, has a signficantly reduced weight, and has strength comparable to conventional roofing tiles over the long term. The roofing tile can be combined both with further roofing tiles according to the invention and with conventional roofing tiles in order to form a roof-covering assembly.
The present invention comprises essentially space-apart U-shaped rafters (10) appropriately attached to a truss framework (14), underlays (20) disposed on top extended sections (12) of the rafters (10), and cross battens (40) extending transversely relative to the rafters (10) and serving the purpose of supporting roof tiles (80). Counter battens (30) are employed to press down the underlays (20) to form valleys (21), each being a stretched rigid surface. The roof structure is adapted to be attached at the eave or the verge with fascia boards (60) or wall abutment (70), so that stray rainwater from heavy storms is prevented to enter the roof structure, thus rendering the roof structure watertight.
A plant and method for the manufacture of cementitious products, viz. cast concrete roof tiles (T), the plant comprising a mixing station (2) where the constituents of a cementitious composition, less an air entraining agent, are admixed under atmospheric pressure and further mixed under a partial vacuum of 200 to 340 mBar after the addition of an air entraining agent, the plant also comprising a molding station (4) where the tiles (T) are cast in a gang-mold (6) before being cured in a conventional autoclave for up to 10 hours at 45 degrees C. The cured concrete roof tiles (T) are de-molded after curing and conveyed to a surface preparation zone (12) where a primer coat of a water based epoxy and a surface coating of a water based emulsion paint are applied to at least an upper surface in use of the cast concrete roof tiles (T). The admixed cementitious composition has a Ford Cup flow of between 40 and 60 seconds and a slump test of between 180 and 220 mm. In an alternative method, instead of applying a primer coat, the upper surfaces, in use, of the roof tiles T are subjected to abrasion by grit-blasting to remove a thin layer from the upper surfaces thereby facilitating the subsequent application thereto of a surface coating.
