Powerlon BM 105 is a high performance, microperforated, roofing membrane.

Manufactured by cast extrusion coating a LDPE onto woven monofilament yarns, this process fuses the materials together and thus eliminates the risk of delamination. Powerlons are tough, tear resistant and durable underlays with superior performance characteristics to traditional felts. Powerlon BM is a micro-perforated breathable membrane version.