If treating the tri-corner is so effective, why is it rarely done?
The challenge in treating the tri-corner really comes down to finding a way to do it that looks good. No one wants to build a wood frame or have steel plates showing after the installation. The Cumulus concept took 2 minutes to figure out. Coming up with an elegant solution took several years of trial and error.

Why does Primacoustic only offer three colors?
There are several reasons for this. First of all, when you have 20 different products in stock, each time you add a color, you add 20 more SKUs (Stock Keeping Units). By reducing inventory we can lower the cost. We chose the three most popular colors that make up 80% of the acoustic panel purchases. This makes colors easy to select, particularly when committees are involved.

Can I change the color of the panel to suit my room?
Yes. All you do is lay out the fabric you want to use, cut it to shape, get some 3M spray adhesive and wrap the Cumulus. Any breathable fabric will work just fine without affecting the acoustical performance.

Should I concern myself with the fiberglass causing itch or irritation?
Unlike almost all other fiberglass panels, that are merely cut and then wrapped in fabric, Primacoustic fabric-wrapped panels are fully encapsulated with micromesh on both front and back surfaces, and then the panels are resin hardened around the edges after they are cut to size in the factory. The panels are only wrapped after they have been completely sealed. This retains the minute fibers from leaching, a problem that can occur when handling raw fiberglass.

Are Cumulus panels safe to be used in commercial spaces?
Yes. All Primacoustic acoustic panels are tested following the ASTM-E84 and Can-UL-S102 protocol to meet Class-A fire and smoke designation. This allows Broadway panels such as the Cumulus to be used anywhere.

How do you clean the Cumulus?
For regular cleaning, we recommend a light vacuum. If the panel has been soiled, then very light detergent and a damp warm water cloth.

Do I need to put Cumulus panels in all four corners?
The more panels you put up, the more sound you will absorb. So if you find that after you have mounted two panels, you want more control, simply add two more.

Is it it easy to remove the Cumulus traps and relocate? I’m living in an apartment and will likely move in the next 1-2 year(s), and if I buy room treatment I’d like to take it with me.
Yes, the Cumulus is very easy to remove. Simply pull the trap away slightly out from the corner, reach behind and cut the cable tie. When you reinstall, you will just need to mount a new eye hook in the ceiling and replace the cable tie.

How well does the Cumulus corner trap absorb mid and high frequencies compared to a standard 2’x2’x2″ Broadway panel?
The Cumulus is constructed from the same material as a Broadway panel, so it is capable of absorbing the exact same frequencies per square foot. The problem is that mid and high frequencies are very directional, so the Cumulus will not be in the path of this sound. Broadway panels are typically mounted lower on the wall surface, absorbing sound energy at its first reflection point, before it has a chance to bounce back into the room.

What is the price of this item? I’ve been looking all over your website for prices but I can’t find any.
Please let us know where you are located. We sell our products through dealers and distributors worldwide, so pricing will vary slightly by region.

Can I install Cumulus traps in the lower corners of my room, or are they only suitable for the upper corners.
You can absolutely use Cumulus traps in the lower corners of your room. Bass usually collects in room corners, so placing the traps there will be just as beneficial as they would be at the ceiling. You will want to ensure the that the location is out of harms way as the panel is fragile, and will need to adjust the mounting hardware slightly to ensure a snug fit.