Underlayment materials such as foam insulating panels or mats made from entangled nylon filaments installed between the roof sheathing and the metal roofing reduce noise transmission.
How to soundproof a metal roof on a shed.
Another soundproofing trick is to use as few screws as possible.
This is a step that is generally taken retroactively as it is not necessary when a roof is installed with the proper type of roof underlayment.
This is how you can properly reduce the noise coming in and out of your garden shed.
When purchased take your insulation and tack it to the walls inside your shed.
You should also install a resilient channel onto an existing finished ceiling.
The only method that works is covering the shed with materials that can block airborne and impact noise.
The most effective method of all is spray foam insulation.
1 seal up all gaps.
Steps to take to make your shed soundproof.
This should be the first step and often the last step as well.
The simplest way to stop sound both entering and leaving a given space is to add mass to the walls and ceiling.
For effective soundproofing you want the area to be as airtight as possible.
My best advice on that front are mass loaded vinyl and fiberglass panels.
Sheds in particular are likely to have a lot of gaps cracks or holes.
The plasterboard will add yet another layer of soundproofing protection.
Soundproof the garden shed walls.
The thicker the walls of a structure are the quieter sounds from within will be.
Both of these methods will add a physical barrier between the noisy roof and the interior of your home.
Just make sure you are careful while doing this to avoid the mess foam gap filler can create.
Foam gap filler is a good alternative if you want to be thorough.
Installing quietrock noise reduction insulation or spray foam is a great place to begin.
As i said use either fiberglass panels or mlv.
One way to cut down on the noise is to install insulation.
The idea behind using sound damping insulation is to cover as much surface area as possible.