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onepercangel 11-19-2008 11:51 PM

instaleing a new cieling
we have 10ft ceiling in the kitchen and living room and we are lowering them too 8ft and we are just woundering if we have too in insulat the lowed ceiling when the excieing ceiling is fully insulaed already

TazinCR 11-20-2008 02:00 AM

With todays heating prices I would insulate all I can.

Marvin Gardens 11-20-2008 08:43 AM

The rule of thumb is if you want heat or cold to stay where it is then insulate.

AtlanticWBConst. 11-20-2008 10:09 AM

The key is going to be what your interpretation of "fully insulate" means.

Check to see what the requirements are for your region, then check what is in place.

If the ceiling areas are insulated to the requirements for your region, then adding additional insulation, is just going to be overkill, and a waste of time and money.

Maintenance 6 11-20-2008 11:41 AM

Having two insulation systems interrupted by a large air void could be setting yourself up for moisture condensation issues. You would be creating an unvented plenum. If the air temperature in that space ever drops below dew point, get ready for a host of problems. You'd be better to lower the insulation system down to ceiling level and vent above it.

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