wood masts are different a s you do not want them air tight-- need airflow to prevent rot
the rubberized sunbrella is awesome and i have no leaks
either mast anymore --even in tropical storm situations...hooyaaahhh.....silicone between the material and wood mast, hose clamp to make it remain sealed--is all good.
masts are diffeent-- is possible to seal well without worry abou t wood rot
due to airtight situation-- you just have to worry about corrosion
of the mast under the barrier.