Ready to hire?
Post your job in minutes, browse real reviews and choose who to speak to.Post a jobNeed some tips or advice?
Ask a questionGroundwork & Foundations
Garden room foundations over existing patio
Anonymous user 03/03/2024 - 3.29 PM
Hi I'm looking to build a small garden room and in order to save costs use exisiting the shed patio as foundations. The floor would be a treated timber frame with sips pannels above. To save costs, I'd like to sit this on existing patio paving (hopefully level). In doing this would i need to raise the wooden floor frame above the patio or would this be ok if I sat this directly on the patio but on a dp sheet?
Are you a tradesperson and able to answer this question?
4 Answers
ER &EP Building
Rating: 5 out of 5
You will have to lift it up so air can get under otherwise it will get damp
Answered14 May 2020
7
R P FORTEY Landscape and Groundwork
Rating: 5 out of 5
I wouldn't use existing patio for a foundation set in 100 *75 h channel and fix external frame timbers to 30mm off existing patio then build from that
Answered14 May 2020
2
Anonymous user
Like any wooden building it would normally have wooden bearers beneath the structural Floor this enables the floor to remain away from the damp concrete or what ever the sub structure is made of.
As long as the ground is stable the wooden building should sit on your existing patio just fine.
Answered17 May 2020
1
Red Rhino Plant Hire
No reviews yet
If only a timber frame sunroom not bricks and mortar then building on existing would be fine. Lift up and DPM
Answered24 May 2020
1