Last March 28, Trade Secretary Ramon Lopez signed DAO 19-05 prescribing technical regulations concerning the mandatory product certification of flat glass, tempered glass, laminated glass and heat-strengthened glass
Several experts in the field discussed the benefits of heat-strengthened glass
in glass-based construction; reasons that affect glass facades, which lead to breakage and depreciation of modern glass buildings; the importance of utilizing glazing sealants that have corresponding compatible gaskets, tapes, spacers and blocks to ensure resilience of the structure; high strength structural sealants that offer new freedom in design; and insights on 'Curved Glass Processing'.
The manufacturer claims that the product is ideally suited for use with annealed and heat-strengthened glass
Upon annealing, heat-strengthened glass
and some windshield glass have a magnitude of the change of the refractive index intermediate between that of annealed and tempered glass.
Like conventional hurricane-resistant glass, the new window has a sandwich construction, in which two layers of heat-strengthened glass
are bonded to either side of a reinforcement layer.
The research team led by Robert Oswald and Frank Liu from the National Renewable Energy Laboratory, Golden, Colo., and BP Solar, Toano, Va., designed a PowerView module as two pieces of heat-strengthened glass
with thin film deposited on the front piece and then laminated to a second piece.
All told, the test program called for more than 50 ballistic and main-force tests on dozens of configurations of laminated, tempered, and heat-strengthened glass