Thermal modification, mass loss and durability equations.
Net area = (Wall width x height) - OpeningsLinear m per m2 = 1000 / Effective cover width (mm)Total linear = Net area x Linear per m2 x (1 + waste%)Boards = ceil(Total linear / Board length)Courses = ceil(Wall height / Effective cover)Service life ~ base_life(class) x use_factor x climate_factorTreatment can upgrade effective class by 1-3 levelsMass loss % ~ f(temperature, duration, wood type)ML = base(T) x duration_factor x type_factorEMC reduction ~ proportional to mass loss (up to ~50% lower)Durability improves from class 4-5 toward class 1-2 (EN 350)Board rows = ceil((Deck width + Gap) / Coverage per unit)Boards per row = ceil(Deck length / Board length)Actual coverage = (Rows x Board width) + ((Rows-1) x Gap)