Start with the problem the opening must solve. Hurricane protection, daily ventilation, energy performance, sound control, security, appearance, maintenance, and budget can point to different products. A window, shutter, panel, or film should only be credited with performance supported by documentation for the exact system.
Put every option against the same opening schedule. Include product, glass, finish, hardware, freight, unloading, removal, substrate repair, waterproofing, installation, permits, inspections, trim, painting, maintenance, storage, and disposal. A lower product price can produce a higher project price when the scopes are not equivalent.
For impact windows and doors, verify operation, dimensions, design pressures, impact classification, accepted approvals, substrate, anchoring, mullions, egress, safety glazing, energy requirements, and installation details before placing a production deposit. Use the comparison guides below to narrow the choice, then shop only configurations that fit the actual opening.
