To a degree, metal stud frames and battens will impact the signal strength of Mercator Ikuü (but not completely). Walls and ceilings spaces permanently covered by foil insulation or silver foil sarking will show the greatest detriment of signal. Double brick, Colorbond steel cladding and similar will also affect the signal strength. In these situations, you will need to have a carefully planned design of the Wi-Fi network. Alternatively, Mercator Ikuü Zigbee products use mesh technology, which can provide greater coverage and signal strength.