Do I need to waterproof the entire height of my basement walls?

No.. No need to go above ground level. But I would go just a bit above ground level to be sure. In theory the out side should have been waterproofed when the house was built but your doing the right thing by taking the precaution of doing the inside too.

A vapor barrier should also be installed before inside walls are put up. GL

all your respondents have great innovations yet after 35 years interior the form business corporation i'm going to provide you the data! if actuality learn, water ought to be stopped on the exterior no longer the interior! think of of the "paint" as a "baggie" that as you nonetheless stick to greater water and rigidity it is going to finally erupt leaving you with a flood of water! the final thank you to circumvent water entering is to excavate the exterior perimeter to disclose the partitions and the footings. next you ought to positioned 4" perforated pipe in a mattress of crushed stone around the footings to permit for the water to run off and "day easy" someplace. (on the backyard, interior the woods, in a drainage ditch, etc) next you ought to "tar" the partitions and stick to polyethylene to the tar falling under the main suitable of footing so water would be drained in footing drains. Then yet another coat of tar over the polyethylene. lower back fill the initiating with "sparkling" fill with a view to no longer tear the polyethylene! then you definately would desire to paint the interior wall with a concrete sealer to maintain out any residual moisture! this would furnish you a superbly dry basement offering the footings, slab, and partitions have been wisely built!

When using Drylock you should apply it anywhere that the basement walls are exsposed. If the walls above are easily reached, use whatever excess Drylock to cover them. No need in saving it if you can use it