Fastening system for flat collectors on a roof with a slope of min. 30°, covered with sheet metal or bituminous tiles etc. The double-threaded screw allows attachment to a rafter or other roof structure.
- For roof slopes >30°
- With two-threaded screw
- Made of aluminium and stainless steel
Fastening system for flat collectors on a roof with a slope of min. 30°, covered with clay tile etc. The 430 mm long hooks allow attachment to the roof battens.
- For roof slopes >30°
- With fastening hooks
- Made of aluminium and stainless steel
The system for fixing flat collectors on a roof with a slope of 15 to 30°, covered with metal sheet or bituminous tile etc. Increases the inclination of the collector by 15°. The double-threaded screw allows attachment to a rafter or other roof structure.
- For a roof slope of 15-30°
- With two-threaded screw
- Made of aluminium and stainless steel
System for fixing flat collectors on a roof with a slope of 15 to 30°, covered with ceramic tiles, etc. Increases the inclination of the collector by 15°. The 430 mm long hooks allow attachment to the roof battens.
- For a roof slope of 15-30°
- With fastening hooks
- Made of aluminium and stainless steel
The system for fixing flat collectors on a flat roof (inclination of up to 15°). The system is a frame on which the collectors can be tilted at an angle of 25 to 45° to the ground.
- For flat roofs
- Tilt adjustment 30-45°
- Made of aluminium and stainless steel
System for fixing flat-plate collectors to the façade of a building. The system is a frame on which the collectors can be inclined at an angle of 45° to the horizontal.
- For the façade of the building
- 45° inclination
- Made of aluminium and stainless steel
How to position a solar thermal collector correctly?
For optimum year-round operation, solar thermal collectors require the correct inclination to the horizontal plane and specific orientation. South-facing with a possible deviation of up to 45° (SE-SW directions) can be considered such conditions. In turn, the inclination of the solar thermal collector to the horizontal plane should be between 30 and 45°.
In most cases, solar thermal collectors are installed on the roofs of buildings. If it is a typical roof with a slope of 30° or more, this creates the natural conditions for simple yet correct installation of the solar thermal collectors. Standard solar thermal collector mounting brackets are then used. If the roof slope is too low, the manufacturer, Hewalex, offers so-called correction brackets. They increase the inclination of the collectors to the required minimum of 30°.
Solar thermal collector fixing brackets – selection depending on the roof covering
The selection of brackets for sloped roofs also includes the selection of the correct fixing components. Hewalex offers both hooks and double-threaded screws. Hooks are chosen when solar thermal collector fixing brackets are to be fixed to roof battens. This is particularly the case with roofs covered with corrugated clay tiles, cement tiles, etc.
If the roof is tiled, bituminous tile or roofing felt, double-threaded screws are usually chosen. The fixing brackets are then attached to the rafters or other structural elements of the roof. If the slope is less than 15°, the roof can be treated as flat (horizontal). This does not prevent the use of solar panels. A manufacturer such as Hewalex offers stand-alone structures for the flat roof.
How do I choose a fixing system?
The solar thermal collector fixing system consists of individual fixings selected according to the needs of fixing a specific number of collectors, depending on whether or not they are hydraulically connected to each other in a single battery. The symbol of the holder also includes the size of the collector for which it is intended (KS2100, KS2600), the angle of inclination (15°, 45°), as well as the type of attachment to the roof structure (H430, S200). A basic breakdown of the types of brackets:
2B – base bracket for mounting 2 collectors on one battery,
1B – base bracket for mounting 1 stand-alone collector (in a vertical position),
1R – extension bracket for mounting each additional collector on the battery,
1H – horizontal bracket, for mounting 1 stand-alone collector (in a horizontal position).