E_MH_Mounting_instructions_Skylux_Climalux
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Load graphs
General considerations
The following pages contain the load graphs for the Climalux profile system. You can use these to determine the
free span of the gutter profiles and the supports in relation to the prescribed load.
A distinction is made between Climalux roofs with plastic sheets (pages 78 & 79) and Climalux roofs with single
and double glazing (pages 80 & 81).
The maximum allowable bending is 1/200 (= 1 cm per 200 cm free span) with plastic sheets.
This includes the weight of the structure and the plastic sheets. Select the graph in relation to
the prescribed snow
and wind load. This depends on the region and the orientation.
The maximum allowable bending is 1/300 (= 1 cm per 300 cm free span) with single glazing.
This is including the weight of the structure. In order to determine the total load, add
the weight of the glazing to
the prescribed snow and wind load. To determine the weight of the glazing, calculate 2.5 kg per m² and per mm
thickness. Example: single glazing with a thickness of 8 mm weighs 8 x 2.5 = 20 kg/m². After converting into N/
m² x factor 9.81, this results in 20 x 9.81 = 196.20 N/m². Suppose the prescribed snow and wind load is 500N/m²
and the glazing is 200 N/m², the total load would be approximately 700 N/m². In order to limit the weight of the
glazing, the axis distance between the support profiles (AX) is limited to a maximum of 750 mm. The total width of
the roof is divided into equal parts.
The bending of 1/200 of 1/300 is achieved with a maximum load. For example, a gutter support of 5000 mm with
a maximum bending of 1/300 will bend 16.6 mm when loaded. Less if unloaded
These graphs do not apply with regard to a continuous support or a structure under the gutter profiles installed by
the customer.
The gutter profiles may put pressure on supporting window profiles when installed on top of each other.
A possible bending of the gutter profile above the sliding doors should, therefore, be taken into account.
When the selected gutter (support) cannot be installed where a certain span or load is concerned, select a gutter
support that can handle a larger span. You could also install an extra post to decrease the free span.
“Span” refers to the distance between the posts. The total width of the roof = the free span + the width of the
posts.
The roof’s supporting posts should always be located at the corners of the roof. We do not recommend moving
the post supports inwards.
Any sun blind installed on the profiles are at your own risk and should be included in the calculation as an additional
load.
In case of large spans or loads, the use of reinforcement profiles is recommended. These are slid into the
aluminium profiles. The reinforced profiles V822 and V14105 are not supplied. These can be bought at any local
hardware store. We recommend treating the reinforcement profiles with an anti-corrosion product.
The selection of required fixing material is dependent on the foundation or the walls. Check whether the
foundation and the walls on which the structure is to be anchored have a sufficient load-bearing capacity. The
installer is responsible for the assessment of the appropriate fixing materials for the load and basis on which the
structure is to be fixed. Please contact your fixing material supplier or specialised engineering consultants in case
of doubts. Skylux cannot be held liable for the installation or the fixing material used.
We recommend removing any snow from the roof to prevent accumulation against the wall by the wind. When
snow on a higher roof can slide on to the Climalux roof, measures must be taken to prevent this, for example, by
using snow hooks and snow beams.
You can use the Climafast calculation application to select the correct profiles and support in relation to the
dimensions of the Climalux roof, the prescribed load and the glazing.
The latest version of this calculation application can always be downloaded from www.skylux.be.
