Fellert has a long history of CISCA awards, as the Gold award for Blackhawk hotel , Davenport, IA last year. The Silver award for US Naval academy Annapolis, MD and Gold award for the Nelson Atkins Museum of art, Kansas City, MO the year before that.

At this year’s Convention Fellert won a CISCA Gold award for Acoustical Solutions – West for the Fellert installation done at St. Gabriel´s church in Poway, CA.

Fellert also won a CISCA SIlver award for Acoustical Solutions – Central for the Fellert Installation done at Hazeltine National Golf Course  in Chask, MN.

Here are some links to these earlier posts

 the Eggshell effect

Bullet proof vest technology

more on Bullet proof vest technology

Here are some frightening pictures from one actual project where we can see the downsides of the Eggshell effect very clearly.

This is a tinted black, glass marble coating on a soft mineral absorbent board, done by one of the companies promoting a hard shell, soft core product.

The pictures are taken just a few months after the installation was finished.

this damage could have been avoided, by choosing a soft shell, soft core product, like Fellert instead.

We chose to present Fellert by running case studies and videos on a large number of tv-screens to get attention from the people passing by.

It turned out to be a nice looking exhibition stand.

Blended by the Cocktail king of Estonia

This is a definite 9 baldheads out of 10.

Imagine that you can use a ceiling and wall material with top of the line performance when it comes to sound absorption at the same time as it can be formed to copy the original design.

You will meet up to todays requirements and no one would be able to tell how you did it.

The pictures below shows one example of a very delicate refurbishing of an old building.

Here’s another excellent example on how the “Bullet proof vest technology” actually works.

Picture this:

- Our representative in Denmark, Mute has as showroom in the centre of Copenhagen. In this showroom there are  two cloud installations made with Fellert acoustical ceilings. One with a Secern finish and one with a Sahara finish.

These clouds have been supplied with electrical winches, so they can be lowered down to give the viewer an opportunity to overview also the backside of the installation.

One morning when Marcus Kjellsson from Mute opened up his showroom he got quite a surprise. Both clouds had fallen down, as the suspensions had given up. The clouds had fallen down and half of it had landed on the table below and the other half was hanging loose from the edge of the table. The stucco was broken and the suspension grid, holding the cloud, was heavily deformed.

There was however something that wasn’t cracked or broken, despite the massive torsion caused by the deformed suspension grid and that was the Fellert Acoustical ceiling.

Marcus just stretched out the deformed suspension as straight as possible and hanged up the cloud in the ceiling a second time.

That is Bullet proof vest technology!

Do you want to know more about it. Read this old blog post on the subject

You can see the result below. Pretty cool, huh?

The system used is the Fellert Ultra.

We don’t mind that he used almost 4000 m2 of Fellert Ultra acoustical ceilings in his design.

Look at the gallery below to see some pictures of the wonderful Fellert Ultra ceiling with credit to David Riffel and follow this link to see the FLICKR gallery posted by the gallery themselves.

to the FLICKR gallery

The reason for this is quite logical. In order to be a sound absorbing surface it needs to be porous, where the sound energy will find the pores and while using them to penetrate the material its energy will be absorbed by the “walls” in each pore, like this:

In addition to this you will also have a “micro climate”  with air flowing through the absorbent board. This works as a chimney where there is a difference in temperature below and above the absorbent board. This thermic difference will start the air to flow from the warmer area towards the colder area. This airflow will bring with it, airborne particles such as dust, sooth etc. and these particles will attach to the surface and some of them will also penetrate the pores of the porous absorber.

If you are using a filler to fill up the joints of the absorbent boards, this filler will not have the same porosity as the rest of the absorbent. Most likely it is of higher density and less porous than the surrounding material. The air flowing through the absorbent will not be able to flow through the filler the same way as it will through the surrounding material. Less air will flow through the surface with a filler backing, which in turn means that less dust and sooth will get attached to the surface and penetrate the pores.

The result will be white grid marks and dots in your seamless acoustical ceiling.

This can easily be prevented by banning use of fillers and disc washers, which we did several years ago.

Take a look a the step by step installation guide to get more information on how to install Fellert. You’ll find it at http://www.fellert.com/facts-of-fellert/instructions/