Gold Coast Skylights is always ready to roll on the challenge of a unique and unusual skylight project in Orange, Riverside and San Diego Counties.
Introduction of aluminum extrusions and durable elastomeric rubbers boosted the sloped glazing with mass‐production capabilities for typical applications. Both the glass attachment and weather seal became easier to produce and offered better performance. Introduction of laminated and organic glass liberated sloped glazing from wires and nets. These applications are still fairly common today. A good example is the set of pyramid skylights built in different decades of the second half of the 20th century, examined in Louisiana in 2007 (Figure 6). They have been investigated and found to have been remedially sealed several times during their life; however we found them still leaking profusely, mainly due to their inadequate engineering. Applications from this era were also sometimes characterized by lack or incomplete thermal solutions, resulting in miscellaneous failures, ranging from dripping condensation to a serious structural collapse caused by installation of insulated glass on a framing system not adapted to transfer the additional dead load. The spectrally selective glass have been gradually developed, with the tinted glass and external pyrolytic coatings as early attempt examples.
Modern sloped glazing benefited from the accelerated development of glazing materials experience in the latest decades. Large size, laminated glass and insulated glass with protected, sputtered low‐E coatings became the standard, sometimes supported on laminated glass beams and tensegrity structures for increased transparency. Double curvatures and structural shells were designed (Figure 8). Operable fields have been developed to be more reliable, and the retractable sloped glazing came mainstream, allowing for efficient ventilation. More durable and reliable weather sealants have been developed. However, the average user still complains about the dripping water, the most widespread failure of these assemblies.
The architectural Deconstructivism merged curtain walls with sloped glazing and substituted roofs with sloped glazing, as illustrated by numerous recent buildings. Large skylight‐roof area ratios drain energy for air conditioning, and subject conversely larger spaces to the above‐mentioned elevated functional failures' risk.