GLUED PROFILED TIMBER PRODUCTION
In the manufacturing area we maintain a constant air temperature of not less than 20С and relative humidity of 40-70%. The moisture content of glued timber structures is determined by their service conditions: 8-12% for class II glued timber structures (load-bearing structures of buildings of any span) and 9-15% for class III (wall beams, building envelope framings, window beams). Every board coming into production undergoes moisture content testing and in case of any deviation from the set-up parameters it is rejected.
Surface roughness excess leads to unevenness of the glue layer depth and, therefore, to a rise in shrink stress loosening the glued joint. That is the reason why the lamellae are planed to smoothness class I. Under TAMAK’s technical conditions the actual glued joint depth is 0, 05-0, 10mm. The glued materials correspond to the climate conditions under which the products are going to be used. Durability and quality of the finger joints of TAMAK’s glued timber complies with the requirements of DIN 68140-1 and GOST 19414-90 for load-bearing glued structures. Durability of the glued joints is in compliance with technical conditions 5366-030-50068227-2007.
Production of house structures does not only require accurate processing but also preservation of proportions and geometric dimensions all the length of the glued timber. Since the automatic lines cut out complex joints with absolute precision, the processed material, that is the glued timber, must have ideal parameters. Otherwise, different mismatches in the joints may occur. According to the in-house technical conditions, deviation in length for the glued timber TAMAK 12 m long must not be more than ± 3 mm (± 0,025%), while deviation in thickness does not exceed ± 1 мм (± 0,49%).Production of house members out of glued timber is carried out with the multi-purpose automatic wood processing centres Hundegger K2 (Germany). These automatic lines of the world-known company give the possibility of quick and accurate production of joints of roof timbers and wall elements of glulam houses ranging in complexity.
Working with brand-new equipment requires that the staff should be highly qualified. Specialists of the company TAMAK have advanced knowledge and skills in wood processing, design and planning objects made of glued laminated timber. Our production engineers work hard trying to develop glued timber production and regularly conduct tests in the laboratories.
After the house members have been manufactured they are put onto the pans and are packed with the special white and black film which has the following advantages:
- it gives the possibility of keeping without storehouses up to 12 months;
- it prevents the hothouse effect;
- the timber does not split;
- the risk of fungi is reduced;
- the humidity level is preserved;
- the wood does not darken and rot.