C-Thru’s glass roof system was designed over 25 years ago. Since then it has been continually refined. Over the years we have implemented the latest in glass technology making our sunroom glass roofs excellent when insulating against solar heat. This allows our sunrooms to be more comfortable any time of the year or day. It is considered to be the best roof system of its kind by our competitors. Of course the beauty of the C-Thru glass sunrooms are unmatched, but what you don’t see is our intricate design details. For example, the internal weep system keeps any unwanted water from leaking into your sunroom. We even offer optional internal stiffeners that allows you to have a large room without the need of beams and posts inside your living area. Our glass roof is available in the Classic curved eave or the traditional straight eave style..