As part of my extreme bus makeover I am installing underlayment so I can install vinyl composition tiles.
Any suggestions on how to attach the underlayment? I used Liquid Nails adhesive in a can the last time, but that product appears to not be made anymore and nobody else makes anything like it that I can find at Home Depot or Menards. I'm not sure I want to use adhesive from a tube as I am afraid it might leave lumps.
What is the underlayment being attached to? a solid surface, or rails? What material for underlayment are you using?
The surface I am putting underlayment on is plywood.
The underlayment is 1/4" luan that is moisture resistant. I bought the underlayment from Home Depot. It is 4x8 instead of the odd sizes that underlayment sometimes is.
Maybe some others have some better ideas, but I would use either contact cement or just some floor mastic and use a trowel with fine teeth and spread it out thin. Weight down the underlayment so its even.
Coming from a pro, you don"t need the underlayment for vct IF your plywood is somewhat smooth. If you have cracks or gouges, simply use a crack filler mixed with a latex for hardness and flexibility. Take the luan back!
BS
Belfert, if you are going to use a underlayment I would look at something different I used the luan from HD and 2 years later I am having problems with mine may be the mastic I used but the stuff is lifting not where it meets the floor but the top
I'd go with whatever Ace (Blacksheep) recommends. He knows his stuff. Maybe send him a picture of it.
If another 1/4 inch won't matter I would go with 1/2 inch. You will get a better product that won't show every little bump. HD has a good adhesive that is very good. it's a polyurethyne made by dl. I used it to glue my fiberglass skin on the outside of the bus . works great. Marc