![]() Seal edges with foil tape or acoustic caulk to make the seams airtight. The only gaps should be for wires, ventilation, or exhaust (a baffle covering these gaps will help with soundproofing). ![]() Soundproof blankets are also incredibly effective and durable products that can be used to block airborne generator noise. For larger generator enclosures, you can line the interior as long as you leave plenty air space or potentially add heat protection for the vinyl. For small generator boxes, you MUST do the exterior wall. For MLV to be effective, cover 100% of either the either interior or exterior wall of your generator box. The MLV will help to actually block the airborne sound waves, greatly reducing how loud your generator sounds. The MLV comes in two densities: 1 lb per square foot and 2 lb per square foot depending on how beefy you want your barrier to be. Our Luxury Liner MLV is an excellent noise barrier and improved the noise blocking ability of many generator boxes. To add density to your box, apply mass loaded vinyl or another barrier material like BlocknZorbe. We don't call it our "utility player" panel for nothing! This same process works for soundproofing a furnace closet with machinery inside.īlocking Sound From Escaping the Generator Enclosure For outdoor applications, BlocknZorbe will again be your best friend. Covering a wall with a "checkerboard pattern" will actually add almost as much sound absorption with 50% coverage as covering 100% of the wall. ![]() Always install sound absorption on at least 2 adjacent surfaces (if you can do more, great). Sound absorption will reduce those reverberations and cut noise 5-7 decibels. Almost every enclosure is all hard, sound-reflecting surfaces. The easiest/quickest improvement for most generator boxes is a little sound absorption. ![]() Always test the operating temperature inside the box to ensure you're at safe levels.ģ) Is there sound absorption inside the box? If you've never built a baffle before, contact us for questions on how to build a baffle with BlocknZorbe and 1/2" plywood. Building an external baffle (outside any vents) will act as a secondary noise barrier while allowing airflow. A cheap box fan inside your box will move a lot of air and help keep the space cool. Vents should face away from living spaces. We can solve for both if we plan ahead, and the smaller your enclosure - the more planning needed. Lack of airflow is the mortal enemy of generators. We've seen soundproofing materials reduce the decibel level of a generator by over 20 decibels!Ģ) Do you have big air gaps where the sound can escape?Īir gaps are the mortal enemy of soundproofing.
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