A living material
HI-MACS® has natural contraction and expansion properties related to temperature changes. When HI-MACS® is applied outdoors, thermal expansion is 30 x10-6 m/°C. A suitable fixing system must therefore be selected.
To build the HI-MACS® façades, LG Hausys suggests using a structure made from aluminium sheeting and a ventilated façade system using BWM fixings.
What about seals?
HI-MACS® does not recommend using glue on the outer facade because of expansion. We suggest leaving gaps of 8 to 10 mm between each panel.
HI-MACS® offers a 10 years warranty on colours' UV resistance and loss of gloss over 40%, 10 years on colour leaching and 20 years on colour peeling, swelling or delaminating. The warranty is applicable after the first installation and is only valid for the sheet material; adhesives are excluded. The conditions for this warranty are based on pratical experience and on-going tests.