- Joined
- 24 Oct 2017
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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
Cavity , block inner, brick outer
The actual finished internal floor level will be approx 300mm below the outer ground level & im a tad worried about damp etc
I’m hoping this will do the trick:
Damp proof courses as normal
-below inner floor screen/floor insulation, tucking in under both courses of bricks all around
Also plan :
Black engineer bricks coming up to & few above outer ground level
+ vertical damp proof course tucking under 1st bricks (within cavity ) going up to few above outer ground level
Will also fit x2 airbricks to outer brick ( insulation in cavity attached to inner block )
Will also put DPC plastic sheet against outside of building up to level of outer ground (again the inner floor is 300mm below this )
So I’m my mind it’s all protected + be ted
Is there anything I’m missing ?
Sone seem to put plastic sheet DPC under whole foundation I do not intend to do this ( as above mine will be just below the floor screen/floor insulation, vertical sheet also as explained above )
Any confirmation for those with more experience appreciated
Regards
Ady
Ps restricted to 2.5mtrs high & I want high ceiling inside
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
Cavity , block inner, brick outer
The actual finished internal floor level will be approx 300mm below the outer ground level & im a tad worried about damp etc
I’m hoping this will do the trick:
Damp proof courses as normal
-below inner floor screen/floor insulation, tucking in under both courses of bricks all around
Also plan :
Black engineer bricks coming up to & few above outer ground level
+ vertical damp proof course tucking under 1st bricks (within cavity ) going up to few above outer ground level
Will also fit x2 airbricks to outer brick ( insulation in cavity attached to inner block )
Will also put DPC plastic sheet against outside of building up to level of outer ground (again the inner floor is 300mm below this )
So I’m my mind it’s all protected + be ted
Is there anything I’m missing ?
Sone seem to put plastic sheet DPC under whole foundation I do not intend to do this ( as above mine will be just below the floor screen/floor insulation, vertical sheet also as explained above )
Any confirmation for those with more experience appreciated
Regards
Ady
Ps restricted to 2.5mtrs high & I want high ceiling inside