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To get accessibility to lighting, sprinkler, ventilation installations etc. in a fixed ceiling you’d need some kind of access panel. The installation details below explains how to do this in two different ways. First detail shows how to install a traditional hatch in line with the ceiling.                 […]

WRR UK is currently installing Fellert at the Liverpool central library, being one of the first Even Better Silk installations in the UK. The large dome in the centre of the building is left untreated, creating a massive sound projection towards the centre of the room, while the ceilings in the outer perimeter are covered […]

Fellert’s way of using unfaced absorbent boards which can be installed directly to a suspension grid or glued to various backings such as GWB, concrete etc. makes it especially suitable for curved surfaces. Most ceilings needs some sort of special arrangements in order be suitable for curved ceilings. Making a special arrangement basically means that […]

At Fellert we took a decision several years ago to ban all use of fillers when installing our system. At about the same time we invented a special clip for mechanical fastening of our absorbent boards to suspension grids and thereby also banned the use of washers (discs). The reason for this is quite logical. […]

95% of all ceilings installed around the world are not seamless acoustical. Most of them are painted drywall or gypsum plastered or when sound absorption is the priority, absorbing tiles. Regardless of how hard Ecophon and Armstrong tries, absorbing tiles are not beautiful. They are not something you hang up for the beautiful design. They […]

As well as ASTM has its terminology on how to express the absorption of materials and how to define this, the International standardization organization ISO got one as well. When ASTM talks about NRC to express the sound absorption of a material, ISO talks about Sound class and weighted alpha. NRC is explained in a […]

Have you heard that there are aircrafts that have microphones installed in the cabin recording the cabin noise and speakers playing this noise back in the cabin and that all this is done to reduce the noise in the cabin. This technique is also used in more trivial things like earphones. I know that Sennheiser’s […]

The construction of Northern Europe’s biggest shopping mall and leisure destination is now complete. The building’s architectonic design was inspired by nature, the nearby Stockholm archipelago, and the four elements. Mall of Scandinavia is certified in accordance with the environmental and sustainability standard, BREEAM, and achieved an Excellent rating for its design phase, one of the […]

This is an interesting project although very small. It is just a single wall. Curved i might say, but still just a small wall in an office somewhere in Oslo. What makes this so interesting you might ask. Simply because this office has been in operation for quite some time and when build the choice […]