| Author | Message | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 380 Registered: 10-2004 Posted From: 96.232.132.245  Rating: N/A |
Ok i have spent several sessions searching and reading the archives (lots of fun, no kidding)but really would like REAL input on the floor aft. We had a repower and dont have much more than the framework over the trans and rear diff. right now. I need to seal for water, heat and noise. Plus i have to keeep an inspection hatch. I want to insulate and i am probably gonna do some stringers with insulation inbetween. there are too many choices and i need to get busy here.should i put aluminum down first to reflect most of the heat then insulation between stringers then ply on top? Ply on bottom? close door to rear and just drive? MULTCN? indoor outdoor carpet? any help would be appreciated.Thanks. | ||
| Rob Norgren (Robsedona)
Registered Member Username: Robsedona Post Number: 169 Registered: 11-2007 Posted From: 75.211.196.24  Rating: N/A |
Mine has sheet medal then plywood then Insulation board and the last is indoor outdoor carpet seems to work good! this was done in the 80s I think their is a roll of insulation now that is better at sound and heat cold!Its like the board but more Rs and also more durable. | ||
| Jim Wallin (Powderseeker01)
Registered Member Username: Powderseeker01 Post Number: 44 Registered: 10-2008 Posted From: 208.68.48.77  Rating: N/A |
Aluminum is a thermal conductor. | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 382 Registered: 10-2004 Posted From: 96.232.132.245 Rating: N/A |
Ok home from work early and from all the posts here no one has a floor in their buses over the engine area! Just kidding. Jim so the aluim.wont reflect the heat it will hold the heat? I cant insulate from underneath it has to be on top of the floor. Ok back to work. | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 1739 Registered: 10-2003 Posted From: 71.58.71.157  Rating: |
I'd want aluminum for the firewall surface facing the engine. Make sure it isn't too thin, since it provides rigidity and moderate fire spread protection.The buses usually use plywood after that.Then, depending on how important noise is in the bedroom, you could add a thin layer of sheet lead or one of the reasonably equivalent materials for noise and vibration, then, if it was mine, I'd use something like AC duct board in one to two inch thickness. I'm leary about using urethane foam board or bead board over the engine. Your opinion of that application may vary. Here is a site that has sound deadening materials and their db or sound reduction ratings. http://www.mcmaster.com/#sound-control-insulation/=4e4l2o look around on the pages; they are a great company to deal with and shipping times here in central Pa. is incredible. | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 383 Registered: 10-2004 Posted From: 96.232.132.245 Rating: N/A |
Thanks John.There is Aluim in the engine bay nothing over the trans or diff. As for the rest of yall, Not one bite on the MULTCN? rats. | ||
| FAST FRED (Fast_fred)
Registered Member Username: Fast_fred Post Number: 993 Registered: 10-2006 Posted From: 69.19.14.16  Rating: N/A |
Take a look at Soundown. If you want QUIET! their 2lb lead with 2 inch insulation really works well. But its Yacht priced , even for dealers. FF | ||
| Debbie and Joe Cannarozzi (Joe_camper)
Registered Member Username: Joe_camper Post Number: 192 Registered: 10-2006 Posted From: 98.212.104.155 Rating: N/A |
I have used soundown for some projects. They have a large variety of quality products. Their cousomer service is second to none. They will overnight you a very large and comprehensive sample box of their products. Ya wont be disapointed. Our hatch is a frame of angle iron holding 3/4 in plywood that was first layered in a rubber mat sealed with thin clear plastic on the bottom side, Prevost did that. The converter added a thin lead sheet (thru the entire rear floor not just the hatch) and another rubber mat of their own on top of that. Then carpet pad, carpet and a full carpet cover. Soundown has all of it and more, headliner ect. It is pretty quiet back there. The carpet pad is hands down the most durable, dense, quality pad I have ever seen You can no way tear and it will hurt your hand cutting it. Soundown doesn't have that and I would love to learn of a supplier as I think this stuff goes a long way towards all the goals we shoot for in your floor project. It could be wool but that is a guess. We have a rear kitchen so when you are standing at the sink you are standing on that cover. I have a different plan for ours. It will be very unique. | ||
| David Evans (Dmd)
Registered Member Username: Dmd Post Number: 384 Registered: 10-2004 Posted From: 173.77.215.177 Rating: N/A |
Thanks Deb Joe and Fred. I think i have enough info to quit stalling. I am giving up on the MULT CN. |
