Flagstone Patio in Denver with Polymeric Sand
We live in central Denver and we are laying a 500 sq. ft. flagstone patio that abuts our house on top of a concrete pad. We have ordered your video to help us not make the mistakes the previous installers made but I have a question regarding joint filler. Everything I've read so far on your website about laying stone on concrete uses portland cement for mortar but I keep reading about polymeric sand in other places. Also, the patio guy who gave me a bid yesterday uses polymeric sand as well rather than portland cement. What are your thoughts/experience with this and what do you recommend, particularly for our freeze/thaw conditions? Also we will have a hot tub on top of part of the patio. Thank you so much for this website; it's going to save us $13,815 to be exact! I apologize if you address this question on the video as we haven't received it yet.