Hi, I am going to install some of the vinyl allure planks in a bathroom.I already removed the moulding from the walls and will install new to hide the 1/8" gap,but what about along the bathtub? Can I caulk that area? Thanks!

NO vinyl flooring is suitable for exterior use. The UV will destroy it in a short period of time. Traditional tongue and groove porch decking would be the flooring of choice for your application.

No I do not have a moisture barrier in our crawl space. The issue is that the manufacturer installation instruction says the subfloor must be a least 18inch from the ground. Ours subfloor is 34inch from the ground. Our neighbor also installed the same flooring in 2008 on concrete over 2500 sq. ft. of trafficmaster allure flooring in there home. They decided this yr to remove the trafficmaster and install ceramic tile. When removing the allure flooring there was mold and moisture collecting under there flooring also. They promote that TrafficMaster can be installed over any type of floors with little or no prep work. They only exclude carpet and outdoor installation. Our home was built in 1957 with tongue and groove floors. Over the years it has been covered with carpet/vinyl/click-lock laminate floors/peel and stick. We inherited the home in 2007 and completely renovated from leveling/insulation/sheetrock and all new wiring it like starting over again. We have been told that the tongue flooring must be removed to the subfloors. TrafficMaster can not be installed over tongue groove. But Home Depot will tell you It Can! and will sale it to you all day long! and to bad if it destroys your subfloors or collects moisture and grows mold.

Melanie, I knew you could do it! Glenn