Our most popular sunroom. A classic. The one everyone tries to imitate. System 4 offers you complete freedom and flexibility in residential and commercial design applications. Our unique features, structural engineering, and selection of advanced glazing options make our System 4 a world class leader. A fully insulated, weathertight home addition.

The traditional straight eave design has the same slim profiles as the curved model, combiming strength and elegance without a heavy appearance. Versatility is enhanced by the ability to vary the roof slope, when desired, to match an existing roof slope or fulfill other design requirements. Hip corners may also be constructed.

SYSTEM 4 STRAIGHT EAVE MODULAR UNITS are also available. these units feature sliding windows all around, similar to the System 4 Conservatory, plus variable pitch roof sections with slopes from as low as 1/2" in 12" to 7"in 12".