ive posted about my moisture problems before. everything from humid basement to frost in attic. I have sealed the attic well and it seems to have helped.
but now to deal w the overall humidity. the house is a 1960 ranch w an unfinished basement/garage in NY. the RH in the house was 60%+. I have installed a bathroom fan. I have an older kitchen fan. Im not sure if it works great but we dont cook so much that I think this is the primary cause. I have tried the test where plastic taped to the basement floor/walls w no +. However even though the the floor is painted I do see areas of effloresence(sp?) - does that mean I have moisture coming through the floor? If so how to stop. Ive read on lowes.com to use water based poly.
any ideas or other things to look at
no signs of attic leaks
heat is oil/ baseboard