- \n
- Including some air-tight detailing around the front door<\/li>\n<\/ul>\n<\/li>\n
- More plastering<\/li>\n<\/ul>\n
![\"Week](\"http:\/\/www.marshflattsfarm.org.uk\/wordpress\/wp-content\/uploads\/2016\/06\/20160624T1500Z.jpg\")
<\/a>Week 36, Day 5<\/p><\/div>\n
Today’s featured topic is the air-tight detailing around the front door, where several cables need to pass through to the outside. The build team have a standard approach to these:<\/p>\n
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- Using PRO CLIMA ORCON F<\/a> air-tight adhesive to seal the cable inside the hole\n
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- This stays permanently flexible and hence remains air-tight for decades<\/li>\n
- The “hole” is actually a 20mm UPVC conduit, to stop the PVC cable insulation coming into contact with the EcoBead Platinum cavity wall insulation (which is made of expanded polystyrene)<\/li>\n
- The problem with PVC and polystyrene is that the polystyrene tends to leach the plasticizer out of the PVC, making it brittle<\/li>\n
- The coating on the EcoBead Platinum should help to prevent a reaction but the installation notes specifically state:<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
In cavities where electric cables can come into contact with expanded polystyrene, in accordance with good construction practice all PVC sheathed electric cables should be run through ducting.<\/p><\/blockquote>\n
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- Using a PRO CLIMA KAFLEX<\/a> air-tight cable grommet on top\n
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- The rubber grommet stays tight around the cable, as a further air seal<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
![\"PRO](\"http:\/\/www.marshflattsfarm.org.uk\/wordpress\/wp-content\/uploads\/2016\/06\/IMG_2337.jpg\")
<\/a>PRO CLIMA ORCON F air-tight adhesive used to seal cable penetrations through wall above front door, with KAFLEX air-tight cable grommets as back-up<\/p><\/div>\n
![\"Conduit](\"http:\/\/www.marshflattsfarm.org.uk\/wordpress\/wp-content\/uploads\/2016\/06\/IMG_2335.jpg\")
<\/a>Conduit sealed into wall ready to take control cables for front door lock<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"
Week 36, Day 5: More electrical first-fix Including some air-tight detailing around the front door More plastering Today’s featured topic is the air-tight detailing around the front door, where several cables need to pass through to the outside. The build … Continue reading
- The rubber grommet stays tight around the cable, as a further air seal<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
- Using a PRO CLIMA KAFLEX<\/a> air-tight cable grommet on top\n
- Using PRO CLIMA ORCON F<\/a> air-tight adhesive to seal the cable inside the hole\n