Installation is a series of hooks and eyes on the cover and deck that secure the unit in place. The cover does not touch water, it lets rain through but not leaves and debris. It is designed for security. Water evaporation can take place through these cover. Spa Covers Spa covers are same material as pool covers, but due to small size of spas creative designs and materials are coming up as spa covers.
Spa covers retain water heat, keep out dirt, leaves and debris.
It ensures safety. Here are few materials used for spa covers. Wood A wooden cover for a spa that sits on the deck over the top of the spa. They are sturdy and mostly made in two sections for easier handling and storage. Redwood, cedar,or other hardwoods are used for a wood cover.