How Minera Roof Trusses
One of the easiest ways to ensure a high quality timber to give a desired service life of 60 years for both permeable species (redwood) and resistant species (whitewood) is to treat it with a preservative. At Minera Roof Trusses we utilise a Double Vacuum Treatment Process using the Protim preservation system for wood, treated for use in construction projects that require protection to Use Class 1. This provides protection against insect attack for timbers, with no risk of wetting, to be used internally above the damp proof course (dpc) level. Treatment with preservatives to European standards are applied in accordance with the guidance from BS8417:2011+A1:2014.