Consider glass strength and the locking mechanism. Most of The Window Design Group windows meet forced entry test requirements. Other technologies such as Low-E glass use thicker double strength glass, which is twice as resistant to breakage compared to single strength glass. Our vinyl windows with our Positive Action locking mechanism with a tamper-resistant design that is easy to operate with one hand, locks automatically when shut, and can’t be seen from the outside, which offers additional protection. The Window Design Group offers high line laminated glass protection, made for extreme weather conditions, also provides added security.