We definitely agree with controlling the roach problem. Maybe taking away their food source may help, it did for us.
We also have put out an Ultra-Voilet Bug Zapper and spread DE in problem areas.
We've also pulled out any kind of items that were up against the house that could have caused...
We have gone to using metal trash cans with lids (the size depends on the amount of food you put in). Also, we have put the "trash cans" in our house or enclosed garage and we have no problems with any bugs, rats or heat-humidity problems
Electrolytes , Frozen containers of water, Fans along with good dusting areas, Thick slices of Watermelons, grapes, frozen blueberries and Lots of water have really helped my girls with our HOT Florida weather.