How does EverQuiet act as a sound barrier?
EverQuiet is a flat surface that reduces sound transmission and reflects sound back to the source. The EverQuiet Wall is about 4.2 pounds a square foot. To be effective as a sound barrier, it needs to be 4 pounds a square foot. At four pounds, the ambient noise level will drop by 5 to 15 decibels by inserting the wall in front of the source. There is a laboratory rating system that is often used that establishes a Sound Transmission Class (STC) which in the case of EverQuiet is an STC of 27. [TOP]

Why are the boards hollow?
EverQuiet boards are hollow to reduce weight and noise transmission. The weight necessary to reduce sound is optimal at 4 pounds a square foot. Being heavier does not significantly improve sound deadening. In fact, having an air space between the front and back of the board helps to reduce the transmission of sound waves through the board. [TOP]

Does EverQuiet expand and contract with heat and cold?
Yes, there is expansion and contraction that occurs. With a hundred degree change in temperature, a 12 foot board will change length by .83 inches. This is why the boards are not screwed in or bolted. The boards float within the two H beam pockets. [TOP]

Will this wall system stand up to wind?
The EverQuiet Wall system has been designed to withstand 100 degree temperature ranges and winds of more than 150 mph. The boards are not the weakest element of the system. The designs are all based on the strength of the H beams to make sure that they do not bend over or break. [TOP]

Does EverQuiet have to be on a concrete foundation?
No, the boards can be laid directly on the ground or even below the ground. Ground water will not affect them nor will they affect the ground water. Some highway installations will be set on concrete base walls that will serve as crash walls, but this approach is optional. [TOP]

Why won't the sun affect the plastic and make it brittle?
A commercial additive is added to the colored surface of the boards that protects the plastic from the harmful ultraviolet rays of the sun. It assures the UV will not break down the bonds of the plastic that is under the color layer. [TOP]

How do I install the wall on a property line that has varied slopes?
The wall can be stepped by making the H beams closer together and by stepping the boards up the hill side through cutting the lengths to match the hill side. [TOP]

Why do you use a tongue and groove design?
The tongue and groove assures that no sound passes between the boards when they are stacked up. The second reason is to strengthen the wall by joining all the individual boards into one cohesive panel. [TOP]