How to insulate a garden shed

Whether you plan on turning your garden shed into a home office, gym, art studio, or playroom, insulating it is an essential part of creating a comfortable, warm and habitable environment.

Converting a garden shed into a useful and comfortable room can add valuable extra living space to your home and help to improve your family’s quality of life.

To ensure that your new space gets plenty of use, it’s important to insulate it well, to make sure that it is warm and cosy all year round.

Repair and seal

Before installing insulation in your shed, inspect your shed thoroughly for any holes or gaps that may be letting a draught in. Use sealant to seal up small gaps and holes and expandable foam for larger ones.

Any broken or damaged windows or doors should also be replaced.

Choose insulation material

There are plenty of different insulation materials available to choose from. The type that is most suitable will depend on the size of the shed, the size and depth of the gaps between your shed’s structural frame, your budget and requirements.

Some different options include:

  • Fibreglass wool.
  • Natural insulation (like sheep’s wool or woodfibre).
  • Foil backed compressed insulation.
  • Insulation board.
  • Spray insulation.
  • Loose fill insulation.
  • Foam boards.

Install wall and roof insulation

Once you have chosen a suitable insulation material, install it according to the manufacturer’s instructions in the gaps in the shed’s structural frame. Once the insulation is in place, you will need to board over it.

When installing the insulation in your roof, be careful to leave a gap to prevent moisture collecting and the shed becoming damp.

If the shed’s interior has already been finished with boards, then you may wish to choose a spray or loose fill insulation which can be blown into the gap by cutting a small hole to minimise disruption.

Install floor insulation

Installing the same insulation that you’ve used for your shed’s walls and roof into its floor can be complicated and disruptive if your shed has already been built. Often it is simpler to use a thick, high quality underlay under the carpet or laminate that you lay in the shed instead.

If you require a new shed for your project, browse our reclaimed sheds and summerhouses here at Beeston Reclamation.