No. We use an aluminum spacer behind the wall mount brackets that prevents the siding from being pushed in, dented or damaged in any way. This same method of installation is used for many different types of siding including aluminum, vinyl, interlocking vinyl tiles, wooden shakes etc... Our installers are experts in retractable awning installation and we promise to leave a clean finish on every installation. Our goal is to make the awning look like it has always been there and is part of the original home design. All brackets are sealed with silicone, not caulk and are guaranteed not to leak for the life of the product.