To really improve the working conditions inside the shed foil backed insulation board or lining the shed and filling the void with a good thickness of insulation fibre wool or glass would be a better answer.
Shed roof batt insulation backed.
Realistically this leaves you with one good option.
The minimum rating of r38 in a roof requires some creative planning in the roof design of a new shed with 2 x6 minimum roof construction.
Bradford polyair insulation was tested to australian standards for water barrier and passed with a high mark.
But any roof can be the victim of strong wind driven rain through an overlooked hole and it only takes a tiny hole for your shed to be flooded in a bad storm.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Insulation options for a metal shed.
Sheds that are not insulated can reach extremely hot temperatures of up to 60 o c by insulating your shed roof you can greatly decrease the impact that external temperatures have on internal shed temperatures.
Whether you use fiberglass batts rigid foam or spray foam you can bank on your insulation dampening sounds coming from inside your metal shed.
An alternative route would be to abandon the insulation idea and line the shed with a breathable roofing membrane.
Therefore insulation is a simple soundproofing solution.
Improving the comfort within your shed or warehouse will increase its flexibility and allow it to be used as a hobby room workshop man cave or games room.
It features long strands of fiberglass with an attached vinyl or similar material as a built in vapor barrier.
It does not matter if your shed roof is old or new there are several insulation techniques you can use.
Installing shed roof insulation can protect your valuables from the effects of extreme heats and create a comfortable space to use.
Such roofs lack maintenance as well.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
Even more thinking is needed for a retrofit shed with 2 x4 truss or rafter construction.
Fiberglass with r3 8 per inch would need 10 inches to achieve the minimum requirement.
Ecotherm foil backed compressed insulation has the best u value for efficiency and is completely safe with electrics.
Better yet is a fiberglass insulation designed for metal roofs.
Insulating a metal shed is not much different than insulating any other type of shed.
Place the plywood onto the roof of your shed in such a way that it acts as sheathing for the roof s structure.
Foil backed compressed insulation is the best and easiest to work with and we highly recommend this option for your shed.