Savitar

After spending much time, effort and money on building their planes, I'm sure most builders would like to keep the plane in a hanger. Unfortunatelly, there is a big cost difference in tie-down vs. hanger space. If you have to tie down outside, would it help, hurt or make no difference to cover and tie down the whole craft with tarps of a suitable material? I know there was an individual (Shirley Dickey?) who made custom tarps for the Cozy. However, these "bonnets" only protected the canopy area and the top of the fuselage.