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In modern day construction, roof covering systems typically include an underlying, supporting deck or like support structure. This underlying support structure is covered by a water proof or leak resistant material that may take various forms. In addition, roofing tiles, shingles and like roof coverings are frequently arranged and secured in overlapping relation to one another so as to collectively overlie the roof deck or like underlying roof support structure. Further, the water resistant covering applied to the outer surface of the roof deck serves to secure the plurality of exterior roof tiles directly to the underlying support. Alternatively, other materials such as cement, polyurethane, “poly-foam”, etc. may be utilized to secure or fix an underlying layer of roof tiles, shingles, etc. directly to the outer water resistant layer. As such, a roofing system, as generally described above, facilitates a water resistant roofing assembly as well as an outer or exterior, aesthetically pleasing roof covering.

However, one constant and continuous area of concern is the structure and procedure utilized in the installation of a roofing system specifically including the roofing tiles or like roof covering materials. In typical fashion, roof tiles may include an underlying tile disposed in laterally adjacent relation to one another and arranged in longitudinally adjacent rows or columns, especially when the roofing system is applied to a slanted or sloped roof. Moreover, an outer array of roof tiles are disposed in overlapping, at least partially supported relation on the underlying tiles. As such, the underlying tiles and outer roof tiles make up the exposed covering of the roof deck or like underlying roofing support structure.

In known or conventional roofing systems of the type generally described above, it is recognized in the roofing industry that both time and labor associated with installation, as well as the material cost of both underlying tiles and outer, exposed roof tiles are significant and sometimes prohibitive. These costs are especially high when both the underlying tiles and roof tiles are formed of a highly desirable but relatively expensive ceramic material, which are typically hand made or otherwise manufactured to meet customized specifications.

Accordingly, there is a long recognized need in the roofing industry for a roofing system incorporating roofing materials which reduce the cost and time of installation, as well as reduce the cost of materials a frequently large number of roofing tiles. Such a proposed roofing system should incorporate a pan tile which is dimensioned, configured and structured so as to adequately and effectively cover the underlying roofing support structure while at the same time effectively support the exterior, overlying roof tiles. Moreover, a preferred pan tile could be machine made either from a ceramic or other appropriate material and dimensioned and configured to provide adequate support to the overlying roof tiles. At the same time such a newly proposed pan tile would require a significantly lesser number of both the pan tiles and the conventional roof tiles overlying the improved pan tiles.

Further, the versatility of the proposed pan tile could be such as to serve as an underlying support for a variety of different outer roof tiles specifically including, but not limited to, barrel tiles of the type which are commonly used on domestic dwellings, condominiums and industrial buildings of various styles and designs. Moreover, a roofing system incorporating the preferred and proposed pan tiles of the type described above, should be capable of being secured in overlying relation to the underlying support structure of the roof using any conventional manner including the use of roof installation connectors such as nails, screws, etc or even the more complex connecting wires, clips, or like connectors which facilitate adherence of roofing tiles during extremely high wind conditions. However, when a securing material such as cement, poly-foam, etc. is utilized with a roofing system incorporating a proposed and improved pan tile a significantly lesser amount of such material should be required thereby further increasing the savings in material costs.

PV- modules are either added to existing buildings, integrated into new buildings or installed as free-standing structures in a field. Where they are free-standing, they can also be fitted on moving platforms tracking the angle of the sun.

Building applied modules

In many cases, pv-system can be retro-fitted to buildings ,either on the tilted or flat roofs

Tilted Roofs

A number of solar mounting systems have been developed specifically for PV- modules on tilted roofs such that no major building work has to be undertaken. The modules tend to be made from aluminium and can grip onto the roof tiles. The crucial characteristics of these systems are:


Snow Load: Weight that the structure is able to carry.


Wind Speed: Wind between the roof and the panels can create a significant force. Some mounting systems may therefore be limited to low-wind zones



Roof Slope: Most mounting systems will not allow roof tilt angles higher than 60°.


Lightning Protection: It is essential that the mounting system comes with lightning protection.

Naturally, orientation of the roof is important. Ideally, facing due south at an angle of latitude - 10% - 25%.

The present invention is directed to a roofing system and more specifically to the structure of a pan tile, wherein a plurality of such pan tiles are dimensioned, configured and structured to be incorporated in a preferred roofing system. In use, a collection of pan tiles cover and confront a roof deck or underlying support structure of a roof and provide efficient support for exterior roof tiles. Moreover, each of the plurality of pan tiles may be produced by a machine and formed from ceramic or in certain preferred embodiments of the present invention, from a fiber glass or other type of appropriate material. The forming of the pan tiles from a fiber glass or other appropriate material has the benefit of a significant reduction in weight while not sacrificing strength or other desirable physical characteristics. The reduction in weight when using a fiber glass pan tile also results in less cost of installation at least to the extent of those costs associated with the transporting of the assemblage of roof tiles to the work site as well as the physically lifting of tiles onto the roof area. While the formation of the pan tiles from fiber glass based material may comprise one preferred embodiment, additional preferred embodiments comprise the inclusion of various types of organic material into the composition of the tile. Moreover, such organic material may be used in combination with appropriate resins such that an organic/resin combination material from which the pan tile is formed facilitates molding of the tile into the desired dimension and configuration.


23rd, Floors, Science and Technology Finance Buildling. No.5, Meiyuan Road, Xiqing District, Tianjin,China.


Sino Green New Energy Tech Co Ltd