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7 replies
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7 replies
Move out the front door during additional insulation
1970s house with slab-on-grade foundation.
Currently insulating the entire exterior facade with 95mm insulation, and now it's time for the exterior/porch doors.
The idea is to move them outwards, but then they won't have any concrete to stand on. I'm thinking hard and have a couple of ideas.
Option 1
Lay sill insulation and insert some leca blocks. Block, place the door. Seal between the blocks with foam and fasten them with nail plugs or similar. Cast internally against the threshold.
Option 2
Wooden sill. Need to double to reach the level. Block, place the door. Cover with wind barrier/tape. Cover the sill internally with sill insulation, fill the "well" between the sill and existing slab with klinkerkulor and cast up to floor level. Oak threshold.
Option 3
Same as above but place insulation in the well and put an oak threshold on top.
Which would you choose? Or maybe something completely different? These are the options I can think of.
Currently insulating the entire exterior facade with 95mm insulation, and now it's time for the exterior/porch doors.
The idea is to move them outwards, but then they won't have any concrete to stand on. I'm thinking hard and have a couple of ideas.
Option 1
Lay sill insulation and insert some leca blocks. Block, place the door. Seal between the blocks with foam and fasten them with nail plugs or similar. Cast internally against the threshold.
Option 2
Wooden sill. Need to double to reach the level. Block, place the door. Cover with wind barrier/tape. Cover the sill internally with sill insulation, fill the "well" between the sill and existing slab with klinkerkulor and cast up to floor level. Oak threshold.
Option 3
Same as above but place insulation in the well and put an oak threshold on top.
Which would you choose? Or maybe something completely different? These are the options I can think of.
A 95mm reveal and leave the door where it is 😀C Xcqn said:70s house with slab foundation.
Currently adding extra insulation to the entire exterior facade, 95mm, and now it's time for the exterior doors/patio doors.
The idea is to move them out, but then they have no concrete to stand on. I'm thinking hard and have a couple of ideas.
Alternative 1
Lay sill insulation and insert some leca blocks. Wedges, place the door. Seal between the blocks with foam and secure them with nail plugs or similar. Cast internally against the threshold.
Alternative 2
Wooden sill. Need to lay double to reach the level. Wedges, place the door. Cover with windproof fabric/tape. Enclose sill internally with sill insulation, fill the "well" between the sill and existing slab with ceramic granules and cast up to floor level. Oak threshold.
Alternative 3
Same as above but place insulation in the well and put an oak threshold on top.
Which would you choose? Or maybe something completely different? These are the options I can come up with.
Didn't manage to take any before it got dark.T Tompafix said:
It's slab on grade.
The door is currently on the concrete slab with a sill and blocks. Because we have a so-called sandwich construction, the floor level is about 9-10cm higher than the slab. The floor is on a plastic/cell plastic insulated screed.
The house had brick before the additional insulation, and where the brick was on the outermost part of the slab is now the frame for the additional insulation. So the actual extension is on the slab.
Would need to place a beam or double studs to reach the floor level.
Hope this explains the matter.
Well, now it's clear.
The door stands on the additional insulation's sill. Then cast against the existing concrete. We'll see how it holds up when it gets cold.
Wood stud doesn't insulate very well, so the risk is that the ledge becomes cold.
Couldn't find a better solution to the problem.
The door stands on the additional insulation's sill. Then cast against the existing concrete. We'll see how it holds up when it gets cold.
Wood stud doesn't insulate very well, so the risk is that the ledge becomes cold.
Couldn't find a better solution to the problem.
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