Insulation and floor covering suggestions

by Caroline


I'm an artist and I, or rather my husband is transforming a 10 x 20 shed into a studio. The studio will be insulated using either Kingspan or Celotex. Can you advise on insulating the floor and what would be the best floor covering? I am a textile, mixed media artist so no paint splash etc on floor.

Many thanks for your help.


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Ordering of floor layers
by: Anonymous

Hi, I've finalised most of the details of a shed I'm planning to build but am still struggling to finalise the foundation/floor structure.
I'm thinking that I will use pier foundations with 2x4 joists, celotex insulation and osb boards on top.
I'm not sure how I will keep the celotex from dropping out (battens, chicken wire, membrane, another layer of osb?), and I'm not sure where a damp proof membrane should be layered (above/below joists, osb, celotex).
Any advice appreciated.

Shed floor insulation and coverings
by: John

Hi Caroline,
Floor insulation can go below or above the shed floor as supplied. It will be easiest to have the floor insulation fitted below the floor as the shed is being built. Getting to it afterwards is tricky.

Installing the floor insulation above the existing floor is also possible but this will reduce the head height inside the shed. So it depends how tall you are and the height of the shed. When installing insulation above the existing floor you would probably install timber battens of the same depth as the insulation to support the new plywoo/boards that are fitted over the insulation. It may also pay to have a breathable membrane installed beneath the insulation to stop draughts and moisture.

With regards to the flooring much of it depends on your taste and how you see the shed floor wearing. Painted/varnished floor boards may be OK for you. Some cheap vinyl flooring may give more of a finished look with a wide variety of colours and styles available and be easier to keep clean.

Often vinyl flooring offcuts that are too small for a house room but perfectly adequate for a structure the size of a shed are available quite cheaply from flooring suppliers.

I hope that the above is of some help. Let me know how you get on.

All the best


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