Glasswool duct board is a rigid board of insulation material manufactured from resin bonded inorganic glass fibers. The exterior surface of the board is a factory-applied reinforced aluminium foil, air barrier and water vapour retarder. The edges of the board are formed by machine to create a ship lapped edge or grooves. It allows the grooves to be joined for building straight ducts of any size or length. Duct system components such as tees, offsets, elbows, and transitions may be fabricated from flat duct board. Duct boards are fabricated into ducts to make HVAC duct system.
The thermal conductivity of duct board shall not be exceeding 0.033 W/m K at 25° C means temperature and thermal resistance should be more than 0.6 m2.K/W.
Glasswool duct panels shall be tested as per EN 13403 Vapour permeance of duct panels should be approximate value: 0.013 g/m2. day mm Hg (outer-facing).
Mechanical stiffness: R5 rigidity, according to EN 13403 (European Standard for non-metallic ducts) this rigidity is the maximum level of the ones established by this standard.
Duct board should withstand pressure under 800 Pa with no evidence of fissures or swelling (test according to EN 13403.)
Fire test: Panels shall be tested as Euroclass: Euro class B-s1, d0.
Joint system: Duct boards should have an exclusive design with male / female edges, in order to provide greater strength for joints, easy installation and shall reduce the number of cutting operation and exceptional inside finish.
Tools and accessories for Installation of Duct Boards shall be followed as per the recommendation of the manufacturer’s manual.
Duct support: Duct board shall be installed, using support as described in the installation manual of manufacturers. The maximum distance between hangers/support shall not exceed for horizontal ducts as