Public Works Department Tender

Absorptive Wall Treatment: Supply and installation of Fabric Tracks Stretch wall fabric system by using FR Grade acoustic fabric of size 1700mm width, shall be stretched by using wooden base 12.5 mm thick, rigid vinyl Stretch Tracks half wrap/full wrap 12.5mm and Midseam 12.5mm, Strand wood wool board, Infills polyester fibre infill with requisite accessories & tools. Wooden base 12mm is first installed on the wood fibre along the marking lines with metal fasteners inserted at 300mm centres. 12.5 mm tracks to be installed on wooden base, after applying Stick adhesive on both surfaces for a true and continuous secure grip, and heavy-duty fasteners at 150mm centers on one/both sides of Stretch Tracks. The GI strut system includes GI Cross channel having thickness 0.45mm, length 3600mm, knur led web 40mm, depth 25mm and equal flanges 15mm is fastened vertically/horizontally at every 600mm centres. Strand Wood Wool Board is square edge magnesite bonded pinewood fibre panels of size 600x1200x15mm having density 400kg/m3, weight 4kg which is fixed to Cross Channel 25mm. Long edge of panels should be perpendicular to length of Cross Channel.Infills polyester fibre infill 1000gsm 25mm thick adhered on Strand Wood Wool Board panel by using adhesive. Fabric of width 1700mm is then aligned to the Stretch tracks by following the fabric thread line or pattern. The fabric is stretched and tucked into the Stretch tracks and secure into the locking jaws so that it will be smooth, free of wrinkles with the tucking tools. Note -minimum 50mm additional fabric is required for tucking hence maximum module wall fabric width would be 1600mm.