ceiling insulation


  #1  
Old 01-18-16, 04:12 PM
R
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ceiling insulation

I have 2- 8 ft baseboard heaters(240 volt) in a room that is 19x36.(single thermostat in center of room)

with an outside temp of 28 F they both run 13 minutes and are off for 8 minutes to maintain an indoor temp of 63 F, would increasing the ceiling insulation to R60 be any help? it has R 11 in the ceiling now.

should i install a vapor barrier first? I have a metal roof.
 
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Old 01-19-16, 03:52 AM
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R-11 is woefully inadequate for a ceiling I'd suggest removing it so you can air seal the ceiling and then adding insulation. I know some climates benefit from a vapor barrier but others don't BUT those that know more than me should be along later
 
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Old 01-19-16, 04:44 AM
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Old 01-19-16, 06:01 AM
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With only R-11 in the attic, odds are the room wasn't sealed properly. You could remove the insulation, seal the attic floor, and re-insulate. If the original insulation is in good shape and has a vapor barrier, it could be reused. Either way, adding insulation based on the energystar.gov chart will help.
 
 

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