Easily weatherproof your space by closing the louvered roof in changing weather. Rainwater on the louvres flows into guttering channels, draining through the legs to the ground. The pergola comes equipped with pre-drilled bases and expansion anchor bolts, ensuring a straightforward installation on any flat, solid surface. Wind Resistance: 60-90 MPH. 【FUNCTIONALITY MEETS OUTDOOR HARMONY】: HOMREST's aluminum louvered pergolas are crafted for both residential and commercial use. Any questions? Get in touch with us, we will be happy to help.