No, this barrier goes behind drywall.
Yes, you can use this acoustical barrier outside, but you may have to shelter the actual product from the weather as much as possible so it doesn't get wet.
No,t his item is too heavy to place overhead.
Hi matamac. According to the website specs, the depth/thickness of this product is 1/10th of an inch. https://www.homedepot.com/p/4-ft-x-8-ft-Acoustical-Barrier-DB348X96BX/100663624 Please let us know if we can be of further assistance. Rick_HD_OC
It will but be careful to follow the directions.
There are two ways to reduce or eliminate sound transmission. Sound blocking and sound absorption. Sound blocking is obtained by adding mass. Sound absorption is done by use of materials that basically turn the sound energy to heat energy. The most common sound absorbing material used in buildings is mass loaded vinyl. This product is a low grade mass loaded vinyl. In my experience, this product has about the same noise reduction value as 5/8 inch gypsum wallboard. Putting this product on the existing wall and covering it with a layer of 5/8 inch gypsum wallboard will reduce the noise but not eliminate it. There is a product caledl quiet rock which is two layers of high density gypsum with a high grade of mass loaded vinyl sandwiched between then. Aside from a de-coupled wall, (which is required by building code for new apartment construction) the quiet rock will produce more significant sound reduction.