Bituminous and rubber type membranes are waterproof membranes designed for flat, pitched
and curved roofs. These can be glued and/or torched on to a surface as a single or multi
layer system. Some membranes come with different surface finishes which vary but can be a
mineral chip or sand grit finish on the top layer of the surface for aesthetic purposes
and UV protection.
Southern Insulation began work in this field when looking for an alternative cladding
system for an insulated roof several years ago. We had a client who had a flat concrete
roof that was leaking and needed insulation fitted for heat loss. This was a multi-storey
building that operated 24/7 and worked 365 days a year. Due to the working environment,
insulating the inside of the building was not an option. The way around this was to fit
ridged cut shaped insulation material to the top side of the concrete roof to give the
roof fall for water runoff, we then applied a water proof membrane over the insulation
for weather protection. These all came with a 25 year warranty.
Southern Insulation have also applied membranes as the top cladding or weather
protection on several insulated tanks throughout New Zealand. We have our own in house,
supplier trained applicators for these membranes and have applied membranes in a number
of applications including tank roofs and commercial building roofs in both the North and
South Island of New Zealand.
Bitumin tank in Tauranga, which we insulated and clad. Note the torch on membrane roof system.