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Hello
I am having difficulty getting the correct answer. I've had 2 different builders telling me completely different answers.
I am looking a build a conservatory/ garden room joined to the back of my house. There is already a 3m longe by 2m wide concrete slab. This is approximately 300mm deep. I want to build 3mx3m. So my question is
Can I use the concrete base and build a trench out 1m to get the desired size or do I need to remove the base and dig in a new trench entirely?
I plan to use breeze blocks to create a double skinned dwarf wall.
Additionally, do I need a damp course on the original base or wil the blocks do this ?
Thanks Neil
I am having difficulty getting the correct answer. I've had 2 different builders telling me completely different answers.
I am looking a build a conservatory/ garden room joined to the back of my house. There is already a 3m longe by 2m wide concrete slab. This is approximately 300mm deep. I want to build 3mx3m. So my question is
Can I use the concrete base and build a trench out 1m to get the desired size or do I need to remove the base and dig in a new trench entirely?
I plan to use breeze blocks to create a double skinned dwarf wall.
Additionally, do I need a damp course on the original base or wil the blocks do this ?
Thanks Neil
