Home>Discussions>INSULATION & HVAC>How to properly insulate ceiling joists near soffit vent
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NH homeonwer
How to properly insulate ceiling joists near soffit vent
NH homeonwer

Hi we recently added soffit venting to our home as it had none. Now that the cold weather is here we noticed that we had condensation forming on the ceiling along a joist (above the ceiling) that runs from the soffit area over the shower...the shower is about five feet from the exterior wall. We have added caulking to stop air leaks and lots of fiberglass attic insulation but still have the problem. What can we do to fix this? I will be upgrading our bathroom fan as it appears to be under sized but being that this is caused by cold spots I'm not sure that will help.

Daren
Re: How to properly insulate ceiling joists near soffit vent
Daren

I too have a very similar problem! Any answers would be extremely helpful! Home built in 1983, living room faces northwest, room isn't used very often so heating it turned off except for the holidays. The trusses seem to be wet/moldy.  Roofing contractor said no to leaks. Painted the ceiling with mold resistant paint and 6 to 8 months later, lines appear again. Venting problem or insulation problem?

FRANCO
Re: How to properly insulate ceiling joists near soffit vent
FRANCO

The best advice is hire a professional to fix the problem.

John
Re: How to properly insulate ceiling joists near soffit vent
John
FRANCO wrote:

The best advice is hire a professional to fix the problem.

That's not helpful answer.  Clearly people are on these forums because they either want to be informed when looking for a professional, or learn how to do it themselves. 

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