marriedshades
Member
still in the planning phase on my layout but the cronstrution method has been decideded for the most part. The layout will be 1/8 underlayment foam and cork for the track right aways.
Found this link this morning, Properties & History of Fiberboard,.....lots of links as wellI probably should have gone to look that up , but thanks for doing it for me.
It looks like they make no claims for its 'insulation' capabilities, so likely I would not chose this for my shed siding application.
http://www.homasote.com/faq.aspx
But back to the roadbed application, the claim would be that I might attach the track to this material and experience much less problems with expansion and contraction in a non-climate controlled train room such as an outdoor shed or garage room in Florida,...is that correct?
Here are a couple of illustrations regarding the use of cork roadbed.
As it comes from the manufacturer, the cork is partially split down the middle on an angle (Step 1). You can finish cutting it apart until you end up with two halves as shown in Step 2. You then re-orient the cork as shown in Step 3 before gluing down first one half and then the other half. The final configuration is shown in Step 4, where the profile of the cork creates a sloping edge on either side of the track, which helps to form the proper profile for the ballast you will add later.
In the photo below, you can see how half of the cork roadbed is glued down and the glue allowed to cure before the second half is glued down. By gluing down only half of the cork at a time, it is easy to follow the curves of your track plan by positioning the flat edge of the cork against the center line of the track, as Iron Horseman describes above.
I use inexpensive latex caulk both for gluing cork to foam and for gluing track to cork.
- Jeff
Do you mean a big sheet of foam over the whole thing or do you mean foam roadbed like Woodland Scenics? http://www.amazon.com/Woodland-Scen...s=woodland+scenics+roadbed&pebp=1419047103089
If you mean the large sheets of foam, I use it often. But always with roadbed.
That is a wonderful idea.
Just for clarification here, you are talking about using the 'plain insulating sheathing' (foam sheeting) as you would homasote,....in both a sheet form as in a flat area rail yard, etc, and in a strip form as roadbed in other isolated wandering mainlines ?
And since you would NOT be utilizing this foam board as the primary subroadbed, I would assume it would not be necessary to use the larger thicknesses?
Sorry that I missed this question when you first asked. I use the cork roadbed from Midwest Products. It really appears to be a mix of cork and ground rubber, but it works nonetheless.Is there a specific type of cork you have utilized, or have you had some experiences with several different types??
Brian