Condensation in Wood Grain Steel Shed
I purchased the wood grain metal shed and it was delivered and installed in October 2025. When purchasing the shed we were advised to put down a damp proof sheet for the base. For context, the shed was installed on paving slabs. However, the installers said this was not necessary and would likely cause more damage than good as the air would not circulate properly between the ground and the shed floor. The shed was installed and required a few things to be fixed and which were carried out promptly the following day. One thing I would reconsider when purchasing this type of shed again- having had the shed for a couple of months - the condensation / moisture is quite bad on the inside of the roof to a point that mold is growing on some due to dampness in the shed. On enquiring about this issue we were recommended to insulate the roof by sheds direct.
Reply from Sheds Direct Ireland
Hi DL,
I can't seem to find you on our system with the information provided. The invoice number is one digit short and the name, email and phone number are not on our system. That's not to say that you didn't purchase from us, but I can't find you with what you've provided - might it be under a different name?
Now, as for the damp proof membrane, this should be placed under the base at the time of building your base, not under the shed. If you were using an already existing base, there is no benefit in placing it under the shed; in fact it may cause more issues.
DPMs placed under the shed can trap rainwater and the only place for it to evaporate, is through the shed. In instances like this, this would cause more issues than if you had no membrane. So we only recommend that you place it under your solid, level base.
Insulating the inside of the shed is a good idea if the condensation is particularly bad. If it's only slight, a moisture-catcher may be an easier solution. If there is a condensation issue, you may need to address the root-cause. If you have white goods (dryer, washing machine, etc.) these would be particularly problematic and we don’t recommend that sheds, particularly steel sheds are used to house these.
If you have any other questions or queries, get back in touch with us. You can edit the review with more queries if needed, or email, phone or message us on whatsapp. However, without knowing who I’m talking to or knowing what is causing this large amount of condensation, I can’t give any more details or advice as-is.