Bracket fasteners are used to anchor the Profile Fastener (6) to load-bearing base materials. The fasteners must comply with national and / or European regulations or approval requirements and must also meet the manufacturer‘s installation specifications. The applicable approval must cover the application for which these items are used, i.e. suitability for the demands of rain screen / ventilated facade installation. Where applicable, corrosion protection measures must also be implemented and the compatibility of materials taken into account.

The load-bearing capacity of the bracket fastener can also be verified by carrying out on-the-spot pull-out tests in accordance with, e.g. ETAG 020 Annex B, ETAG 029 Annex B or an equivalent test method.

Based on base material type mentioned above suitable mechanical anchor can be used accordingly.

A layer of thermal insulation between the supporting surface and the ventilation cavity. Depending on the type of insulating material used, it may also fulfil fire protection and soundproofing requirements. Thermal insulation for rain screen / ventilated facades must consist of an insulating material of a type suitable for the intended purpose (exterior wall insulation behind cladding). The insulation must meet the following requirements:

• Able to retain its shape
• Able to retain its dimensions
• Completely hydrophobized and non-vapour retardant (as necessary)
• Non-flammable (as necessary)
• The following types of facade insulation can be used, for example:
  • Mineral wool
  • Foam glass
  • Rigid foam sheet
  • Wood fiber board

Insulation sheets must be tightly butted together. This is particularly important at the corners of the building. The thermal insulation must be snugly fitted around the points where the substructure penetrates the insulating material. Where water spray is to be expected, moisture-resistant insulating material must be used.

As a basic rule, national regulations and installation instructions issued by the manufacturer must be observed.

The insulation sheets must be fitted without gaps and reliably, permanently secured (depending on the type of substructure, anchors, adhesive, clamps, screws or mechanical pressure may be used). The wind loads to be expected, also during construction, must be taken into account. Excessive compression of the insulating material at the fastening points should be avoided

The substructure is the static connecting link between the load-bearing outer wall and the facade cladding. It consists of wall brackets with sliding and fixed points and load-bearing metal profiles made from aluminum alloys as per EN 573, EN 755 and EN 485 (6063 T5).

The fixed point takes the weight of the cladding material and substructure and the proportional wind & other load. The flexible points allow temperature expansion of the profiles and bear the proportional wind loads

Substructure components are as follows:

 

Aluminum Specs used

Profile fasteners are the components that connect the various parts of the substructure together mechanically.

The fasteners are ISO standard parts that comply with International approvals as well as the manufacturer‘s specifications. The fasteners are protected from environmental and contact corrosion effects through their material properties as previously declared.

For metal substructures:

• SS304 Hex Head Self-Drilling Screws size 4.8×16 to connect Wall holders to T-Profiles.
• SS304 Pan Head Self-Drilling screws size 3.9×16 to connect panel clips to the T-Profile