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I can do that on the new wall but not against the existing wall. So is it OK to run the dpm up past the on dpc on the existing wall?

I'm adding a porch onto my house it's 2.2 X 1.5. I've built up to dpc and now looking at pouring the floor. Can any one tell me if I have to tie the dpm into the dpc or can I just let the dpm run up past the dpc. I ask this because half of it is the existing house and half is the new porch and...

Hi Im adding a small porch on the back of my house which is just basically an L shape to create it. I'm going to do a concetre floor but not sure how to join the dpm to the old and new dpc. I can mortar it in the new dpc easy enough but not the old dpc (1940's). Is it ok to just let...

Thanks for the help people. Has anyone got any idea what the concrete pad at the back of the trench could be. My guess is its something to do with the drain?

The pipe is half out the ground now. So I'll just dig another 2inch down to be safe. Thanks

should I dig any deeper either side of the pipe to expose it?

Have just dug down to the depth required for my footing for my new porch (2.2m x 1.4) and have found that they is a drain pipe running half and half at the bottom of where my concrete is to be layed. Whats the best way to bridge over this? Also they is a pad of concrete about 4inch thick at one...

Hi, I'm building a porch on the back of my house and have made a start on foundations. The wall will be L shaped and about 1m high from FFL. Now the floor base at the moment is the path has you can see in the picture. My question is can the path be left has it is and be used has the hardcore...

Thanks for the info feel more convenient about the job now. Im a joiner by trade trying out brick work so once the walls are done its plain sailing from they :D

So if I use 50mm insulation slab I must make sure that the gap between the block work is 50mm, no air gap? And if condensation is a problem ill fit some trickle vents.

Im just concerned about getting damp in there over winter and thought this may help. Ive done plenty of reading up on wall construction but couldn't find much on the 75mm rockwool detail. Is it has simple has block - 75mm rockwool - block with no air gap. Also is 50mm rockwool ok to use in the...

Im building a small porch on the rear of my house (2.5×1.5m ish). They will be an L Shaped wall 1m high and 1.5 x 0.9m and the rest pvc. Im looking at doing a cavity wall for this so I see it has, breeze block below ground, brick 4 courses up (for looks) then breeze block up to below window then...

I thought of doing thicker insulation but didn't realise you could go or even get insulation that thick. Thanks for the replys!

Yeah I will be digging for footings. Was going to angle grind two slots and take out the middle so should be neat and tidy and not disturb the concrete thats they now. Also if I put a bed of sand down, insulation then screen. what thickness would you recommend has I need to raise it from the...

Hi, Im planning on adding a porch on my back door around 2.5m x 1.5m. Now at the minute the floor area is a concrete base. After drawing out a section of the new floor the current concrete base is the same level has where the sub base would be. So could I just leave it has it is and just put my...