The dynamical scaling properties of selfavoiding polymerized membranes
with internal dimension D are studied using model A dynamics. It is s
hown that the theory is renormalizable to all orders in perturbation t
heory and that the dynamical scaling exponent z is given by z = 2 + D/
v. This result applies especially to membranes (D = 2) but also to po
lymers (D = 1).