EWI to Door Threshold [Version ID #225]
Detail summary
Detail for insulating below ground where an existing door, with a step, is to be retained. For use where floor void inaccessible by usual means and is not possible to lift whole floor.
Using a granular insulating infill below an existing concrete stone step increases the thermal efficiency of the building thermal envelope, and prevents cold bridging through the existing door threshold.
Technical description
Section detail. EWI below ground to retained existing door, new concrete flag step and door step support.
REFERENCE SPECIFICATION:
Please refer to Approved document M (access) for guidance on door thresholds and step heights from external ground level.
Perimeter insulation suitable for below ground use and drainage layer. To BS EN 13164
Blockwork: Aggregate concrete bricks and blocks: To BS EN 771-3. Autoclaved aerated concrete (AAC) blocks: To BS EN 771-4.
Granular insulation infill to minimum 300mm from level of internal floor finish to prevent thermal bridging.
Parts list
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Concrete Flag paving to form threshold step [FL03a]
Smooth finish. Size to suit step/threshold. Jointing as per detail. colour as existing (where present)
Contractors choice.
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Recycled plastic threshold support [FAB EW05b]
Recycled plastic lumber. \ Thickness as detail. Depth as detail. Width as door threshold
British Plastics. \ http://www.britishrecycledplastic.co.uk/our-products/recycled-plastic-lumber-2
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Lightweight Aggregate Insulation bounding layer [FL03a]
Lightweight recycled glass aggregate. Pour insulation in through the hatches and rake across the floor from above to achieve an even spread with minimum depth 200mm -taking care not to damage underfloor gas pipes and services. 50mm min. air gap to underside of joists. Ensure vents are not covered.
Misapor (technopor or glapor as alternatives) \ www.misapor.ch \ Reference: MISAPOR
Revisions
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Admin - 2015-04-29 08:51:11
Formatting amendments. DWG file uploaded.
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Admin - 2015-04-22 14:24:33
Pdf detail file updated to include parts list codes.
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Admin - 2015-03-23 10:20:09
Introduction revised to remove errors. Technical description updated with links to approved docs, parts list revised with links.
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Admin - 2015-03-13 17:52:00 [Displayed version]
Technical description updated. Parts list revised.
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Admin - 2015-03-11 17:35:20
Version 5. Parts listed updated with codes and additional parts information.
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Admin - 2015-03-11 16:54:18
Version 4. Title update. Technical description updated and intro revised with additional detail. Preview image and pdf updated with new line type colours and lineweights.
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Admin - 2015-03-03 13:38:35
Version 2. Parts list, title and description updated.
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Admin - 2015-02-27 12:12:05
Version 2- .dwg file updated
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Admin - 2015-02-26 13:35:08
First Version
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For those who have seen the Earth from space, and for the hundreds and perhaps thousands more who will, the experience most certainly changes your perspective. The things that we share in our world are far more valuable than those which divide us.
For those who have seen the Earth from space, and for the hundreds and perhaps thousands more who will, the experience most certainly changes your perspective. The things that we share in our world are far more valuable than those which divide us.
- Ease of understanding detail: Easy
- Ease of sourcing materials: Easy
- Ease of sourcing skills: Easy
- Ease of implementation: Easy
- Overall cost: Low cost
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User name
For those who have seen the Earth from space, and for the hundreds and perhaps thousands more who will, the experience most certainly changes your perspective. The things that we share in our world are far more valuable than those which divide us.
For those who have seen the Earth from space, and for the hundreds and perhaps thousands more who will, the experience most certainly changes your perspective. The things that we share in our world are far more valuable than those which divide us.
- Ease of understanding detail: Easy
- Ease of sourcing materials: Easy
- Ease of sourcing skills: Easy
- Ease of implementation: Easy
- Overall cost: Low cost
-
User name
For those who have seen the Earth from space, and for the hundreds and perhaps thousands more who will, the experience most certainly changes your perspective. The things that we share in our world are far more valuable than those which divide us.
For those who have seen the Earth from space, and for the hundreds and perhaps thousands more who will, the experience most certainly changes your perspective. The things that we share in our world are far more valuable than those which divide us.
- Ease of understanding detail: Easy
- Ease of sourcing materials: Easy
- Ease of sourcing skills: Easy
- Ease of implementation: Easy
- Overall cost: Low cost
Feedback summary
- 80% of users found this detail easy to implement.
- 50% of users found it easy to source skills for this detail.
- 60% of users found this detail hard to understand.
- 100% of users found the overall cost for this detail to be low.
- 90% of users found materials for this detail easy to source.
Discussion
For those who have seen the Earth from space, and for the hundreds and perhaps thousands more who will, the experience most certainly changes your perspective. The things that we share in our world are far more valuable than those which divide us.
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