Hello. I am new to the forum, I found the forum while looking for help trying to decide how to proceed. End of April I had new floors installed. I bought very expensive ($10.09 sq ft) Anderson Conservatory Plank, 1/2" engineered 5" planks. It is 5 plys of oak, and top ply of Maple which is hand scraped. Although I am very handy, and I used to be a cabinetmaker, I decided to pay the professionals to install my new flooring thinking they could do a better job than me. I am afraid I was wring, and I was hoping to give you some information to get your opinions on it. My house was built in 2005, is a ranch and has a walk out unfinished basement. The flooring was installed on the main level on top of sub floor. The installers did not install any type of paper between the sub floor and the new engineered flooring. There are neighborhood of 15 spots where the head joints are within 2" - 5" of each other. When I read through the installation manual provided with the flooring it specifically states to install 15# Felt Paper for moisture barrier, and it says head joints should be no closer than 6" from each other. My question is, woudl you be concerned about the installation? I am concerned one because of the warranty of this floor since it was not installed per manufacture requirements. The rep from Anderson has assured me they will stand behind the warranty in my case, and he has offered to supply me with paperwork stating the same. My concern is if I have a claim later they still could decide the flooring was not installed correctly and deny my claim. Secondly, the head joints are some what of a structural issue as well as an appearance issue. I think the flooring just does not look right with those joints being close together, and there is one place where 4 planks in a row are within 2" - 4" of each other. Would you be concerned about these issues? Please address each separately. I appreciate your time and opinions.