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Ask a questionGroundwork & Foundations
Conservatory base
Anonymous user 23/02/2024 - 3.32 PM
I have a 9m x 3m solid slab base (not a trench foundation), which has had an old Crittall conservatory removed, and I will be putting a new full height upvc one on the same footprint. It has about 150mm of compacted granite chips, and a concrete slab on top of that about 100mm above ground level. No cracks at all in it. As I'm not having a dwarf wall, if I build one course high of engineering bricks on top of this, will it be strong enough, or do I need to underpin it? Many thanks for any advice.
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3 Answers
NJ builders
No reviews yet
the base will be strong enough, although with only one course of brick you might get damp problems.
Answered30 June 2020
4
Sureset Drives and Patios
Rating: 5 out of 5
the base will be strong enough, although with only one course of brick you might get damp problems.
Answered30 June 2020
0
Anonymous user
You'll need a minimum of 150mm in brickwork from ground level to prevent damp ingress
Answered27 July 2020
0