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Developed by and exclusive to Seven Oaks Modular, this is a fully insulated, environmentally friendly traditional timber-frame wall panel. Triso-warm is extremely thermally efficient therefore negates the need for conventional central heating. Used as the loadbearing inner leaf of an external wall, above the damp proof course in dwellings up to 18m. Completely factory manufactured, this BBA(19/5680) approved product comprises of specifically engineered timber frame panels injected with PUR highly insulated foam. This foam expands and adheres to the inside of the panel creating an airtight seal achieving U-values as low as 0.14 W/m2k, Y-values as low as 0.04 W/m2k and air tightness levels as low as 1m33/2mh @50pa.