I live in Southeast Wisconsin. My home has an attached garage with a second story "bonus room" that opens into our second floor bedroom closet. We would like to expand the bedroom closet into the bonus room for added storage and hanging space. The floor of the bonus room (also the ceiling for the garage) is not insulated and temperatures are extreme in both winter and summer. The floor of the bonus room is a very thick composite material (1.5 to 2.0 inches) that has been screwed down and apparently glued. Any guidance on what kind of insulation and how to insulate the floor of the bonus room so I can start construction of the expanded closet?

About a month ago I had an internal french drain / sump pump system installed along the back wall of the house. It has been raining here for 24 straight hours and the new system is working well. Problem is that I did not have them extend the system along the side wall of the garage, which is now leaking quite a bit of water into the garage. Company's best offer is $500 to extend the drain for this 17 feet or so, and run it into the pump. I am seriously considering doing this work myself (I realize it is backbreaking work, but $500 is $500). I would like to try and match up with their system though - and they installed an "egg crate" type piece of plastic that sticks up maybe 3 or 4 inches from the floor along the base of the wall (with some holes of course drilled in the blocks behind the plastic - then water then goes down into the drain). Supply places that I call say this is "drainboard" and only comes in 4 foot by 150 foot rolls for $150. All I need is a piece 17 feet long by 12 or 18 inches. Does anyone know where I can get a smaller quantity of this stuff?