Hello,
I've got a uPVC conservatory attached to the rear of my house. It has a 3 course engineering brick base, upon which the uPVC conservatory sits.
I'm thinking of pulling the uPVC part down, and replacing it with a single skin brick summer room with windows (so there will be no cavity wall).
The roof will be Marley concrete tile to match the rest of the house.
My question is; are the existing footings deep enough (8 inches)?
I've lifted a paving slab, and dug to the bottom of the footings. The foundation has small stones in it, making the base concrete, but it doesn't extend out laterally beyond the brickwork - it only seems to be the same width as the brick.
The brickwork that will eventually sit on this will reach 4.6m high to the rear, and 2.4m at the front (for the sloping roof).
I have searched the forum for similar scenarios, but there are many ways to build a conservatory (uPVC / brick / cavity wall), and I'm sure this affects the foundation requirements.
I have approached some builders, but they want to rip everything up (including the foundations and tiled floor) which will increase the cost significantly. None of the builders that have estimated knew anything about the foundations either, as I've dug them up today to have a look. There's nothing wrong with the existing floor so I'd like to keep it if I can to reduce costs.
Thanks.
I've got a uPVC conservatory attached to the rear of my house. It has a 3 course engineering brick base, upon which the uPVC conservatory sits.
I'm thinking of pulling the uPVC part down, and replacing it with a single skin brick summer room with windows (so there will be no cavity wall).
The roof will be Marley concrete tile to match the rest of the house.
My question is; are the existing footings deep enough (8 inches)?
I've lifted a paving slab, and dug to the bottom of the footings. The foundation has small stones in it, making the base concrete, but it doesn't extend out laterally beyond the brickwork - it only seems to be the same width as the brick.
The brickwork that will eventually sit on this will reach 4.6m high to the rear, and 2.4m at the front (for the sloping roof).
I have searched the forum for similar scenarios, but there are many ways to build a conservatory (uPVC / brick / cavity wall), and I'm sure this affects the foundation requirements.
I have approached some builders, but they want to rip everything up (including the foundations and tiled floor) which will increase the cost significantly. None of the builders that have estimated knew anything about the foundations either, as I've dug them up today to have a look. There's nothing wrong with the existing floor so I'd like to keep it if I can to reduce costs.
Thanks.