THERMOSYSTEM FIBERGLASS MESH White mesh 145 g/m² Mesh: 5.0 x 5.0 mm. Technical leaflet THERMOSYSTEM FIBERGLASS MESH High-quality white mesh 149 g/m² Mesh: 3.5 x 4.5 mm. THERMOSYSTEM FIBERGLASS MESH White mesh 160 g/m² Mesh: 4.0 x 5.0 mm. Technical leaflet THERMOSYSTEM FIBERGLASS MESH High-quality white mesh 161 g/m² Mesh: 3.5 x 4.0 mm.