I have a good size Fastrack layout. I used 3/4" pink foam on top of 5/8" plywood. The 3/4" pink foam works great because many of the accessories have 3/4" bases and can be made so they are level with the top of the foam when it is carved out. Regarding the securing, I used latex caulk. First, I put sill seal foam under the Fastrack and then caulked the Fastrack roadbed to the Pink foam. You can easily scenic around the caulk/foam, etc. Is actually fairly quiet.
Dennis
TCA#09-63805
One thing that I discovered is that rubber ballast from Scenic Express for some reason knocks down track noise.
Celebrating 18 years on the CTT Forum.
Buckeye Riveter......... OTTS Charter Member, a Roseyville Raider and a member of the CTT Forum since 2004..
Jelloway Creek, OH - ELV 1,100 - Home of the Baltimore, Ohio & Wabash RR
TCA 09-64284
I have a 5 1/2' x 10' Fastrack layout. I used plywood and topped it with 1" blue foam. I believe it works pretty well; however, I don't mind a little toy train noise. Lionroar88 is correct about not having your screws go through the foam and into the plywood; that will transfer the noise and mitigate the foam. The best reason for me to use the foam is for sculpting scenery. I hope this helps.
Joe
I have many issues of Model Railroader and The Model Builder from the 30's and 40's and they were addressing track noise back then too. One article went into various methods for quieting track and they parallel many of the attempts today. One of the most important things found back then was securing the track to the base with rubber cement. I'm sure caulk may have the same effect but the key was to isolate the track vibrations from the surface it sat on. They took it one step further back then and used ground up rubber for ballast too which is a bit extreme but we are talking about 75 years ago.
it doesn't matter how you attach the ceiling tiles or homasote to the plywood, you simply have to make sure the screws attaching the FasTrack to the ceiling tiles or homasote do not penetrate and attach to the plywood.homasote and ceiling tiles are both 1/2 inch thick. don't think I have ever seen them thinner or thicker.
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