> Ask a Question > Fix It Forum > Insulation/Air-sealing
Login | Register


Posted by JT on February 6th, 1998 02:28 PM
In reply to Insulation of walls in a condo by Leon R. on February 6th, 1998 07:41 AM [Go to top of thread]

Leon, I'm not clear on your statement about why
blown-in insulation may not be possible.

Instead of attacking the points where you feel
air infiltrating (as most people do), you need to
stop if from exfiltrating i.e. you will
have to treat your ceiling as if it were the roof
and air-seal that boundry. When this is done, the
infiltration will stop. The main problem here is
not having access to the whole structure (i.e.
the upstairs unit). Dense packing the walls and
ceiling with cellulose may be the only practical
way. This done, you will probably need to add some
ventilation, and if your basement is damp, it
must be dried out or you will have humidity

Please give this carefull consideration if you have
any combustion appliances. If you were to
succeed in sealing every infiltration point, unlikly
as that may be, your part of the building would become
depressurized (due to the continued exfiltration to
the unit above) which could cause backdrafting or
spillage of combustion products (eg. CO) in to your
unit. You might want to contact a weatherization
contractor (not an insulation contractor).

Was this post helpful? Yes: or No:

Topic History:

About  | FAQ  | Contact  | Sitemap  | Privacy Policy  | Terms of Use  | Help

© 2017 Renovate Your World LLC