Should i seal basement walls?
I have a new home just built, basement 3800ft with 10ft ceilings and a walk out, i put tar mixed with rubber that was sprayed on my outside foundation, did a french drain too. However my area has clay and holds water. I run a dehumidifier and keep it at 50%. My basement is insulated on ceiling. I have a musty smell down there, should i seal the walls with a dry lock product, does anyone recommend anything else product wise? I also want to install an HVAC with it unfinished so kids can play and breath and cool in summer and heat in winter, i am in long island NY.