Insulation to suspended timber floor, thin joists [Version ID #92]
Detail summary
Detail of woodfibre insulation laid between existing suspended ground floor joists where existing joists are too thin to allow min. 200mm depth for woodfibre installation.
Technical description
Section detail. Floor insulation between joists with breather membrane below. Accessible from below. To achieve target U-value of 0.2W/m2k.
Preparation: Inspect sub-floor and timbers for signs of damp and rot. Before starting work carry out a survey of any structual timbers, particularly those which enter external walls (e.g. floor joists). Record current condition of timbers and moisture content for future reference.
Remove any organic matter from sub-floor and floor void. Ensure all existing air-bricks are unobstructed with clear ventilation path
Parts list
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Woodfibre Insulation Supported Between Suspended Ground Floor Jo
Flexible woodfibre insulation. \ Depth TBC on site based on depth of existing joist. \ Friction fit between joists to ensure air-tightness (batts cut approx 20mm wider than opening between joists.) \ Thermal conductivity: .004W/m2K. GWP 0.
Unger \ www.unger-diffutherm.de \ UdiFLEX
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Rigid woodfibre insulation fixed across joist.
Woodfibre insulation. Thickness: to create total 200mm insulation thickness (including woodfibre between joists). Thermal conductivity: .004W/m2K. GWP 0.
Unger \ www.unger-diffutherm.de \ UdiDiffutherm
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Seal between floorboards- existing ground floor.
Draught-proof and seal all timber floors to ensure no air-leaks
Draughtex. \ www.draughtex.co.uk \ Reference: Draughtex Neoprene Strips
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Single-sided air seal tape
Tape for junctions critical to air-tightness. 60mm (typical). \ Accesssories: ORCON F sealant and TESCON PRIMER RP (for use on rough/old surfaces to assist adhesion)
Pro Clima \ http://www.greenbuildingstore.co.uk/page--pro-clima-airtightness-tapes-options.html \ TESCON VANA/ TESCON PROFIL (2 release tapes)
Revisions
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Admin - 2015-04-30 13:23:14
Intro/summary updated.
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Admin - 2015-04-30 11:10:49
General reformatting. DWG file uploaded.
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Admin - 2015-03-30 11:11:39
Preview image and pdf detail file updated.
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Admin - 2015-03-26 13:26:47
General re-formatting. Introduction revised. Technical description updated with approved docs and additional notes.Parts list updated with supplier links.
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Admin - 2015-03-17 10:27:08
Detail updated. errors removed.
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Admin - 2015-03-17 10:23:23
Version 2. Introduction expanded. Technical description updated and expanded with BS codes and approved docs. Parts list update with codes.
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Admin - 2015-03-04 15:47:03
Version 2- Parts list updated
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Admin - 2015-03-04 15:45:55 [Displayed version]
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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