09:39AM | 03/06/03
Member Since: 03/05/03
1 lifetime posts
My house is 40 years old. I had moisture problems in the basement, after gutting it I found out the problem was from condensation on the cement that is above ground level.
What is the proper way to finish the basement to prevent this from happening again. I have about 4ft. of cement above ground level. Would insulating the outside of the basement be the answer. Currently there is cement and stucco on the outside walls. What about styrofoam insulation on the inside.


Jay J

04:00PM | 03/06/03
Member Since: 10/26/00
782 lifetime posts
Hi kotylakj,

I'm not clear on your problem. If the moisture is coming from the floor, then let it breathe. I mean, if it's moisture, let it breathe. If it's "water", you don't want to pass GO! If you seal the floor or start gluing tiles to it, the moisture will eventually ruin the finished job. Consider a floor that requires Sleepers. It will raise your floor so consider the headroom. Plan B might be to use an indoor-outdoor carpet. Again, don't glue it to the floor or seal the floor. Sometimes, that's the best you can do.

If the moisture is coming through the outside walls, you have a couple of options. 1) Mitigate the source from OUTSIDE the basement, 2) as stated above, as long as the moisture is moisture (not water) that's coming through, you can let it come in. Use a Pressure Treated wood in EITHER scenario! It won't rot.

THEN, the last thing you do is build in a dehumidifier. You see, it's OK to let moisture in as long as you get rid of it. Be sure to THINK AHEAD as to where you're going to run your tubing for the dehumidifier. My Municipality prevents me from 'dumping' the water into the Sewer System. Also, if you route it outside, it needs to 'run' somewhere. Also, if you experience Winter, you need to prepare for that too.

My best to ya and hope this helps.

Jay J -Moderator

PS: There are plenty of DIY books that go through the steps of finishing a Basement. Since you're doing the work yourself, spend some of that saved $$$ on a GOOD book!

PPS: God Bless America!

[This message has been edited by Jay J (edited March 06, 2003).]


05:22PM | 03/09/03
Member Since: 01/28/03
694 lifetime posts
The reason you are getting condensation on the inside of the black above grade is that the block is getting colder than the dew point of the interior air.

Block below grade rarely gets to that point.

The BEST solution is to add foam insulation on the OUTSIDE of the foundation, then stucco on top of that.

Short of that you can add the ridig foam insulation on the inside but still risk having any penetrating moisture enter the space between the concrete and foam and condense.

Respectfully disagreeing with the moderator, under NO CIRCUMSTANCE should water vapor be allowed to enter a basement from outside.

It is this type of water infiltration that creates most basement damp problems.

Basements walls and slabs should ideally be treated on the out and underside respecfully to prevent any and all vapor penetration.

Short of that, the walls and slabs should be treated with a vapor barrier coating (typically in the form of an epoxy based coating) to prevent vapor penetration.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

A simple banquette piled with pillows and lit from above with a wall sconce is a tempting spot to curl up with a favorite ... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... For windows, doors, and mirrors that could use a little definition, the Naples Etched Glass Border adds a decorative flora... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon