Good thermal insulation characteristics of Alutech doors have been confirmed by tests performed in laboratories:
Saint-Petersburg State University of Architecture and Civil Engineering (SPbGASU). The test program was developed in association with Federal State Unitary Enterprise D.I. Mendeleev All-Russian Research Institute of Metrology;
NISI Research Institute (Bulgaria);
Civil Engineering Research Institute of the Republic of Belarus (Minsk).
Good thermal insulation of Alutech doors are ensured by their construction:
Sandwich-panel is filled with foam polyurethane with very low thermal conductance.
The panel thickness influences to a great extent the reduced thermal transmission resistance. Alutech panel is 45 mm thick. This is 12.5% more than most of the panels offered in the market have. The reduced thermal transmission resistance of Aluteh panels is 1.65 m2°C/W.
Panels are fitted with polymer EPDM sealant that preserves high mechanical strength and elasticity at low temperatures. The sealant prevents the occurrence of gaps between panels ensuring high thermal and sound insulation of the doors.
Across the entire perimeter the doors are fitted with polymer rubber gaskets that overlap joints and together with track profiles ensure reliable sealing of the opening.
The R-value of Alutech garage doors (Standard series) equals to 1 m2°С/W. It surpasses the requirements of SNiP (Russian Federation), GOST 31174-2003 (Russian Federation), TKP 45-2.04-43-2006 (Belarus) and allows to install the doors in any region of Belarus, Ukraine and Russian Federation (even in the regions of Extreme North).