Laying Peco code 55 track using caulk: problems

[Sumpter250]

Homasote is great stuff and I used it and spiked the track ( takes spikes really well ) on my last layout ......BUT , the price up here is outta sight ....about $40/sheet 10 years ago and hard to find . I just can't afford that price these days ( probably higher now ) and I couldn't salvage the old material to reuse . Cork , in rolls , is pretty cheap ....I'll cut it and glue down the track . It'll have to do since it's all I can afford . Probably will generate more noise this time around , too , but ear plugs are cheap ! T

A. I get Homasote in 2' X 4' sheets at Menards, and cut the roadbed strips from the sheet.
B. I'm not building a large layout ( although the old modules occupy 12' X 4'-8 1/2" of floor space, and the new modules
12' X 3' - 4" )
C. And ----- I haven't purchased any recently -----
D. :o but I will have to when I start the On30 modules