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Just did a survey and customer intents to re-tile roof but wants to put 3-4" of rigid insulation between the rafters and battens. How do you mount your brackets on to this?
Discuss Mounting on top of insulation in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
No. When he said it I thought it strange! Will have to confirm and if I interpreted correctly will have to tell him to re-think!Are you sure he isn't intending to insulate between the rafters themselves, not between the rafters and battens?
Need to ensure you've got square cuts on the conduit! I guess need at least 150mm long screws, longer if insulation greater than 75mm!I have seen it done like this on several jobs (insulation on top of rafters), mainly barn conversions and the like. It isn' a particularly good idea IMHO but thats by the by, we used to drill a 20mm hole through the insulation to the rafter, and drop in a peice of 20mm conduit cut to the thickness of the insulation, then screw the brackets through the conduit and into the joists with sheradised screws.
Reply to Mounting on top of insulation in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
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