Roof insulation at rafters [Version ID #86]
Detail summary
Detail for the installation of insulation to rafters as part of loft insulation works. Insulation in plane of rafters where existing roof membrane is non-breathable. Need to ensure adequate ventilation behind insulation
Technical description
Section detail. Roof insulation. Insulation to existing room in roof with impermeable sarking.
Removal of existing ceiling and finishes (set aside for re-use), remove existing light fittings and set aside for re-use. Remove any existing timber mouldings. Check roofing membrane before installation of insulation.
Parts list
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Insulation Boards Or Batts Fitted Between Rafters
Formaldehyde Free Glass mineral wool semi rigid batts friction fitted between rafters. \ Thickness: 35mm less than rafter depth. Width to suit rafter spacing. \ U-value: 0.032 W/m2k. GWP 0.
Knauf \ www.knaufinsulation.co.uk \ Reference: DriTherm Cavity Slabs.
Revisions
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Admin - 2015-04-30 10:51:46
DWG uploaded. General re-formatting.
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Admin - 2015-03-30 11:19:06
Preview image and pdf detail file updated.
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Admin - 2015-03-18 10:29:04
Version 3- Parts list html. text updated to remove errors.
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Admin - 2015-03-18 10:04:15
Version 2- Introduction expanded with U-value targets. Technical description expanded with BS and approved doc links. Suggested sequence and reference spec. expanded. Parts list updated with codes and links.
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Admin - 2015-03-04 13:49:00 [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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