The construction of roof is produced from glue-lam or solid wood rafters. Cross-sectional dimensions of these rafters depend on roof loads and thermal insulation thickness. Usually the dimensions are 50/60 x 200÷300 mm. Roof panels are transported to the building site with thermal and steam insulation, painted and fixed eaves as well as rafters. On customer's request, the panels and roof beams may be brought to the building site already prepared for covering and internal finishing. Structural elements of the roof may also be provided separately.