It’s not available in the south east, south west, parts or maybe all of California.
In previous threads, one would have to special order, more than you can possibly use. Local insulation firms may have it, but want a huge mark up, compared to what it is sold for in the North.
Sorry but your on your own asto where to find the foam. I use mostly scrapes, I find for free. I can tell you , you don’t need 2in, its better but 1or even 3/4 works also. I resided the house 2 yrs ago, used 3/4 pink as added insulation,under the siding, I have enough odds and ends to last me till after the funeral.
The yellow glue as said to be water proof,other then that its the same as white. I didn’t use any glue on the bench work,and have no issue. I think any wood glue would work.
AS for road bed and track. Any ole cheap laytex caulk. Just a thin smear is enuff. And its removeble if needed.
HD and Lowes in my area all have extruded foam. But no 4x8 sheets, it’s all 2x8. Just use 2 of them for a 4x8 layout, or consider alternative shapes that give you more layout area in the same foootprint.
–Randy
Yep 2’ x 8’ are easier to find even up here in the Great White North.
Just a side note, this was the first layout I built using foam and spline. I considered it an experiment and my findings were, I would use foam and spline again except I would not put mainline track on foam as it became a little rock and rolly over time. I would run spline for all or most of the mainline and I like it way better than cookie cutter and it is really cheap. For sidings and yards I really like using the foam as it is so easy to contour with ditches, holes, dirt roads going up and down…
This bench is 6’ x 18’ and you can see the 2’ x 8’ sheets. They are placed on open grid, the only place there is plywood is on this end to give the curved end some support. All 200lbs of me has climb up onto the foam to work on the layout, I kneel on a 1/4" sheet of plywood that is 20" x 30" and when I get off there is no evidence I was ever there.[C):-)]
