Recent Review: Over the years I had heard a wide range of advice about crawl space insulation in Maryland. So I hired a specialist to make sure the job would be done right. I expected Dry-Tek to be somewhat expensive because they are a specialist. Compared to what I was hoping to spend, they were expensive. HOWEVER, and this is a big deal, they did a GREAT JOB. They did an extremely professional job from start to finish. They answered all questions, repeatedly, until I was comfortable with the insulation technology. They followed their own step-by-step protocol, and the result was a crawlspace you could have a picnic on. I've never seen anything so clean under a house. I am very glad that I spent the extra money for a specialist, and got a technology which is more appropriate to the wet, humid climate of Maryland's Eastern Shore. BTW, the styrofoam will never have to be replaced, so over the years, I will get my investment back in savings on batt insulation replacement/labor that will not have to be done.