Suntouch Electric Radiant Heat wires are woven 2.75 inches apart so that people will not feel any cold area between the blue wires at that spacing. However, if your tile extends three inches past the wire, you will probably feel a temperature drop. Your radiant heated floor temperature can also be affected by the presence of ductwork below, insulation variations, solar gain, and heat loss outside. All of these are good reasons to plan your layout so you can install the heated floor mats where they will do the most good.
Suntouch mats and other radiant heat products can be found at www.supplyhouse.com
