many sites recommend root rubbing to tighten roots. but roots do not need extra help. dreads form towards the roots, but a little undreaded hair at the roots is totally normal, even necessary.
root maintenance facts
loose roots-roots should have between 1 inch (typical) up to 3 inches (rare) of undreaded hair at the roots, this gives movement room. movement is needed to dread. this is normal, and without that space it would be ver4y hard to clean the scalp, and knots forced right up against the scalp will cause uneven pulling, pain, and possibly cause dreads to stick up.
loose hair around scalp-again, this is normal and healthy. the loose hair provides sun screen to prevent sun burn, as it grows it will do one of 2 things. either it will join a dread, or become a new dread. you cannot get rid of it without harm. better to just accept it. new fuzz is always being creatted by seperating dreads.
roots dread on without help- any rubbing of dreads or roots cause friction, friction causes damage, damage can never be repaired, the more you do, the worse it gets and can lead to weakening of the roots, even breakage.
so you still want to rub your roots? heres how