Re: Wood shrinkage after installing AC/Heat
Once of the benifits of an A/C unit is that it does provide dehumidfication.
If this home has never had A/C installed there might be some affect of the dehmification removing some of the moisture in the structure.
However ... unless there had been major changes to air sealing and insulation to the home it would seem things would eventually stabilize.
This is sight unseen ..... so there may be also some structure settle or movement .... hard to say.
"" an ounce of perception -- a pound of obscure "