SIW impact-resistant products are now officially Marvin Signature Coastline windows and doors, following Marvin’s 2018 acquisition of the company. The reinforced impact glass and solid extruded aluminum frames withstand flying debris and do not require any additional protective measures, according to the company. The Coastline portfolio includes awning windows, casement windows, picture windows, bi-fold doors and multi-slide doors, among others. Coastline windows and doors feature a broad range of product types, sizes and configurations.