Conduit compression resistance decreases proportionally with increasing temperature. For installations in hot places and/or climates, it is fundamental to choose conduits with adequate mechanical and thermal features (ICTAAM 34323 – ICHW 33432 – ICTHX 43432). Polypropylene conduits are strictly recommended for their high mechanical and thermal resistance. In contrast, PVC conduits are not advised for their low thermal resistance, since they collapse over 60°C.