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cheers, I will have a full DPM just below the inner floor final screen, DPM's other places too, there's no clay present here just mud

Thanks But obviously a plastic seal underneath the slab ( between bottom of foundation slab & the earth) it may trap mosture in thereafter Some do this , some don’t & not quite sure why Never seems to be done for trench or strip style foundations from my research

For a steel reinforced raft foundation I’m wondering why some people also put a DPC under the foundation ( trenches lined with plastic sheet prior to concrete pour in) Some do , some don’t Does anyone know why? I’m planning to compact a layer of hardcore then pour straight onto that ( of...

Been out in the back garden more in the last month then I have in the 12 years I’ve owned the place for , enjoying it Getting all the soil out is bit tricky but with a few hours a day come Feb/March things will be really starting as hope to have foundations all dig out & prepped by then Anyone...

thanks for your feedback Fred , What is the crap part ? All criticism/advice appreciated Ps my final plan of construction I will be seeking some proffesional advice ( & no doubt pay for it ) prior to me starting to spend the cash out & getting to point of no return etc I’m enjoying the...

Big thankyou foot & good points There’s no conservatory or anything else in back garden & this new room ( outhouse ) will be 1.3 meters away from back of house , Neighbours -I get on well with landlord & his tenants , the wall between us is over 100 years old & kind of about to fall down so...

Cheers for good points I heard this about resale etc If this ever happens I’d be happy to dig down to show the foundation level + pics of build stages , although this is not to profit it’s for personal use The building will look good Reclaimed Victorian bricks (to match) & 4mtr bi-fold doors...

Gary yes your right -this is just under the 30^2 The small conservatory between will fall short by 1” so it will not connect except for an industrial compressed rubber strip that can be easily removed , it’s really a weather guard The doors will be secure/external from house into conservatory &...

This is going to be really great I rang the council & they tried to sell me this ( about £600 ) But I established it wasn’t legally required , especially for a building within permitted development rights I do want to do the very best & most through job though to avoid any probs in future...

No one drew the plans Doing this under permitted development , it’s one room 7 meters by 3 meters for projector/sound room Also there’s bi-fold doors down one side ( about 5 meters ) the building will be heavier on the other side ? Am I overthinking this ?

I’m with you now I think Run another DPC sheet down from Top pressing against Insulation (That’s atyached to inner block) Then tuck it under outer bricks at low level -but few bricks above actual ground level & obviously put those little plastic vents every couple of bricks to drain anything...

Hi Just looked these up Do I need these -I’ve not really seen these used anywhere If so is it around the whole of the outhouse/extension? & just above the ground level ( its tad different each of the 4 sides of the building) The inner block work will have insulation attached to it , these...

Woody big big thanks for replying Vertical & horizontal overlapping -have that in plan Going to lookup what this cavity tray thing is Your very helpful massive thankyou

hi all 1 main question -does this plan seem sound below : New project Single storey 7mtrs x 3mtrs *** inside floor level 300mm below outside ground level Started groundwork for extension -actually classed as outbuilding ( but will be connected with small conservatory ) Raft extension...