In general, in an aspect, a barrier includes a water impenetrable membrane having two sides. On one side of the membrane, a continuous strip of adhesive surrounds an adhesive-free central area. The entire extent of the continuous strip of adhesive bears one or more release strips. The membrane is resilient, flexible, and stretchable with an elongation at break in the range of 150% to 1000% (using test ASTM D412).
