1 Breakages are less as the boards are much tougher and have fibers reinforcing in them. 2  they damage less easy from general wear and tear in everyday use in a home or office. 3  It offers slightly better acoustics than standard board.  It is a superior product in case of fire.
It is normal for the solenoid to make noise, it clicks when the valve is turned on or off. It also is normal for a very soft buzzing sound to be heard when the valve is activated, but you should not be able to hear it unless you put your ear near it. If you can easily hear it buzzing, that is not normal.
Was does lolbvs mean in fb When theres alot of bass or the dre beats are loud in a song, the bass sounds like a loud clapping type of noise or kind of staic? Loud screeching noise when i make a call for the recipient unless i have it on loud speaker on iphone 4?