The most common type of sheds that we insulate are farm or commercial shed with metal roofs and walls. To insulate a metal shed we use closed cell spray foam insulation that forms a dense rigid coating that prevents condensation build up, helps regulate the temperature for heating or cooling and often strengthens the structure as well.
1 The area that you require to be insulated, the economies of scale will apply here so the larget the area the lower the costs.
2 The depth of foam required will determine the price of insulating the shed. If you are changing the use of the shed from a storage space to a working space for example, a greater depth of foam may be required that if you just want just want to apply insulation which prevents condensation buildup.
3 Many shed roofs are difficult to reach so if you require scaffolding or a cherry picker to reach the ceiling that will affect the price a bit.
4 The amount of labour costs must be added to any calculation of the price to insulate your shed.
5 If you require insulation on a wooden garden for example, you will require open cell spray foam as water vapour will need to escape the shed and the foam will need to be ‘breathable’ See open cell spray foam insulation.
6 Asbestos shed roofs can be encapsulated with spray foam insulation to prevent harmful cancerous fibers for escaping See asbestos encapsulation.