Vinyl Flooring (Cottage)

I will be putting down Vinyl Flooring in the kitchen of my cottage. It will be placed over a plywood floor. The cottage is not heated in the winter months. What would be your recommendation on this application. I was told to put the floor down but do not use an adhesive to fasten it to the floor. Just use the trim to hold the flooring in place. Would this be correct?
Thanks

 

Your new vinyl floor will be installed over either a concrete or wood floor. Either of these installations requires a climate controlled work area. We recommend that the work area be maintained at a minimum temperature of 65 degrees F. and a maximum of 100 degrees F. for 48 hours before, during and after installation. This requirement can seldom be fulfilled with a temporary space heater. A permanent heat source must be operational before proceeding with the installation. For the entire life of the floor, the temperature should never fall below 55 degrees F. If this minimum temperature cannot be maintained the performance of the flooring product and adhesives can be adversely affected. Carpet Corner. Vinyl. Retrieved 21 September 2002. http://www.carpetcorneronline.com/vinyl.htm

I have glue down vinyl in my mountain cabin where the temperature gets below 55 in the winter. It has been down 5 years with no problems. It is a single sheet without seams.