An inside method is Waterproofing? Sorry! It`s...water "diverting"!! I hear from the companies(and homeowners who had it done) who prefer to install the inside method say"there is no water on the floor"..or"my basement doesn`t leak anymore!"....Oh Yes it Does! Water is still coming into and through the wall...they just diverted the water under the floor once it comes through.You have to go outside to"stop" water from entering(unless the house was built in very high water table area then they prolly need a sump pump(s)).So in my brain that is called"diverting" water...wouldn`t ya say? If you don`t stop water from entering through the wall your not preventing the probability of mold and/or efflorescence growing inside the wall or on the inner face of a wall.There goes your liveable basement space because who wants to breathe mold into their lungs all day? And the inside method cannot take hydrostatic pressure off the outside of the wall which can cause further movement,bowing,cracks...Do the inside companies warn you of these possibilities? Does Haege talk about these things..No! But do what you want..your house.I can install an inside method as easy as anyone too...and it`s cheaper for me and less labor-intensive! But what is best for the wall? What is best for preventing mold? What is best for air quality in basement? What is best for the homeowner and future homeowner? Answer is.......Outside!