Making my 2x2m, flat shed's roof waterproof

Dear experts,

Lots of water enters into my shed. I think, I would need to cover it with something waterproof material but I need help what would be the easiest and quicker ways to cover it. Please advise me on this.

Many thanks!

Asked by Monika on 24th Nov 2025
Expert Trade Answers
"If it’s a wooden shed I’d recommend felt as this is best to prevent the water from entering also checking the boards to make sure the boards are stable"
Answered on 26th Nov 2025 - Member since Nov 2025 - report
"Some new she’s felt would be best to assure no more water damage happens hope this helps with your leaky shed"
Answered on 27th Nov 2025 - Member since Nov 2025 - report
"Hi there In this case I would use grp rubber or torch on felt that would get you 100% waterproof thanks again storm king roofing 👑"
Answered on 24th Nov 2025 - Member since Nov 2025 - report
"epdm would be best suited for this as it is relatively light weight and can be cut to size to cover most domestic flat roofs in one peice. a variety of trims are also available to finish off the perimeter neatly."
Answered on 30th Nov 2025 - Member since Oct 2025 - report
"Hiya, I would suggest some single ply pvc membrane...or some heat applied felt... or a liquid applied polymer based sealer such as Hpx or instaseal"
Answered on 24th Nov 2025 - Member since Nov 2022 - report
"Best way is to use is rubber makes it completely water tight"
Answered on 24th Nov 2025 - Member since Oct 2025 - report
"Yes your best and cheapest is bitumen roof felt but make sure the wood underneath is OK"
Answered on 26th Nov 2025 - Member since May 2023 - report
"First of all I’ll make sure the base is strong enough for you to be working on. Then I would strip the existing waterproof membrane not so waterproof now. I would use a perforated felt which is now down with 20 mil tax galvanised. I would then go to your local roofing yard And buy a four mil torch on felt with a green mineral cap sheet personally this is the best way to waterproof any any roof. I hope this information is useful to you regards Justin."
Answered on 7th Dec 2025 - Member since Nov 2025 - report
"There’s a lot you can do to a flat roof re-felt it, EPDM rubber it, liquid rubber it in a paint form. Fibre glass, metal sheets"
Answered on 18th Dec 2025 - Member since Sep 2025 - report
"If it's OSB boarded, your wanting a good quality breathable membrane, this to help air vent through the roof without moisture on the boards and making the roof last longer."
Answered on 21st Dec 2025 - Member since Dec 2025 - report
Find Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Ask a Trade

Are you looking for advice on a DIY project or have a question for our tradespeople?

We'll email your question to tradespeople who are skilled in your chosen category.

Your question will be made public - please do not include any personal details.

{{ first(ask.errors)[0] }}

By continuing you agree to the Community Guidelines.

Report Content

{{ first(reportForm.errors) }}

Thank you

Your report has been created and will be investigated shortly.

Ready to get a price for your home improvement project?
Get started

Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year