Superseal manufactures windows that meet or exceed Design Pressure (DP) Codes, Sound Transmittance Codes (STC), and Energy Star® Requirements.

To ensure that the Superseal product line-up meets all of these requirements, its windows and doors are brought to an independent testing facility that certifies and rates the products by running them through a series of precision tests using state of the art technology. An engineering staff trained in thermal performance computer modeling determines proof of structural integrity, thermal performance and sound transmittance. All of the most recent reports are available for download on this page.