The 200X Series is ideally suited for the protection of existing stained glass windows. It can be fabricated into an unlimited number of designs and shapes to keep the architectural integrity of the existing church window. If the protection window is used to protect a double hung window a project-out ventilator is used. The double hung stained glass window is lifted up and then the project-out ventilator is pushed out to allow ventilation. Venting is also available to help eliminate condensation between the stained glass and the protection window. Vent holes are screened and hooded to prevent insect, dust and water infiltration. Stained glass window coverings can also have insulated glass. For larger windows the 2400 Series can also be used.