I live in Virginia and my house is a slab. My house is very dry in the winter so I had a humidifier installed on my furnace but I still have static electricity. In the summer even running my airconditioner my doors swell and some of them will not close. So I am wondering if this could effect the time that I have my engineered floor installed. I am leaning towards the UA Floors engineered floor (Brazilian Cherry) because the finish is so nice and smooth.

You should not have that static problem if the humidifier is working right. Is it possible your HVAC may be undersized for your house, because the AC is apparently not getting the job done either.

Lowe's and Walmart sell digital hygrometers for around 20 bucks. Your humidity level should not fall under around 40%. I think 35% is the absolute minimum. A range of 40% to 55% is what I shoot for year round.

Using an engineered product is good choice. but having the slab tested for moisture is a must.

Time of year does not really matter if the wood is brought in an acclimated and moisture testing is performed.

As long as the interior of the home is between 40 & 65% humidity, engineered will perform well for you.

It really shouldn't matter what time of year, as humidity levels inside the home, should stay pretty consistent.

Get the hygrometer Jerry suggests.

We live in a very humid area (gulf coast) and heat with wood. Even though we keep windows cracked and run a humidifier, it's difficult to keep RH above 30% when we use heat.

Don