Absorba tiles are easy to cut to any size or shape to accommodate light fittings and other services using a sharp utility knife, making it easier on site. Any cut edges which are visually exposed can be touched up with matching white emulsion paint.
Ensure the panels are cut to the front of the panel by using a long sharp blade to avoid visible damage on the face of the panel. Care should be taken when cutting the edges of the panels as they are reinforced. The cut edge can be lightly sanded and after sanding ensure the area is free from dust before painting. The core of the panel is very porous to paint and therefore may require more than one coat; however painting may not be necessary in areas where the cut edges are not exposed.
When fixing tiles with a 100mm air gap between tiles and ceiling/wall this fixing method results in very high sound absorption especially at low frequencies.
The air gap can be created by using 100mm thick timber battens (or similar) fixed to the ceiling structure. The Absorba ceiling tiles are then glued to the pre-sealed (PVA) battens.
When direct fixing, check the ceiling structure for condensation or cold bridging, as this condition should be avoided when the acoustic panels are fixed, for example, it may occur when there is no heated upper floor above the ceiling. The ceiling must also be clean, flat, dry, solid and free from dust, grease and other similar contaminants before applying the adhesive. Absorba tiles are fixed using an Isocheck Contact spray adhesive applied to both the tile and the ceiling surface.
Apply the adhesive at room temperature of approximately 20°C and in well ventilated conditions. Hold the spray adhesive 150mm to 300mm away from the surface and at a constant 90˚ angle and spray in a web pattern. To avoid overspray onto the edges of the tiles or other surfaces, it may be necessary to mask any vulnerable areas. To avoid soiling the panels, we would advise the use of white cotton gloves.
The tiles can be either butted together or left with up to a 3mm gap. The tiles and ceiling surface should be fully coated and then allowed to dry for 3 – 5 minutes before bonding. The tiles should be placed accurately into position as the adhesive creates an immediate bond upon contact. Once the panel is in place it should be pressed firmly to ensure overall contact.