Yes, as long as they are installed properly. The cover must be sealed tightly around the base and at any spot where it has been altered for permanent openings. It is also important that the cover be free of rips and tears, which can result from improper handling.
DomeGuys International LLC 4621 Grumman Drive Suite C//Medford, Oregon 97504 USA Mailing Address: PO Box 40//Medford, Oregon 97504 USA Local Phone//541.482.2961 Toll Free//877.421.5020 Fax//541.816.4023 Emailemail@example.com
Copyright 2017 DomeGuys International LLC, All Rights Reserved