Suitable for any building that requires natural light, the Topgal range can be used everywhere—from sports stadiums and commercial buildings to domestic structures, such as pool enclosures.
Produced in five different colors—bronze, blue, clear, ice and polyshade silver—delivering different levels of light transmission, the Topgal sheets come in a variety of sizes and thicknesses to meet the most demanding needs. Although the Topgal system is translucent, all damaging UV rays are filtered out while heat transference is limited.
Durable and weather-resistant, the system, which consists of the panels and a number of connectors, edge protectors and fasteners, can be installed with a screwdriver.
Topgal panels are linked together with easy-to-fit connectors that create a mechanical lock between the sheets, ensuring strength and water resistance. Fixture points are hidden and the sheets can be flexed to suit any type of structure. Because the panels are modular, units can be added as needed. The Topgal standing-seam panels and components integrate the unique properties of multi wall structure to deliver strength, rigidity and thermal insulation Topgal sheets are manufactured in 600- and 1,000-millimeter widths (center to center) and in thicknesses from 8 to 20 millimeters. In addition to the standard colors, Plazit Polygal can tailor special colors and solar-radiation levels.
The start of a new school year is always an exciting time. As I see my friends post photos on Facebook of their kids’ first days of school, I am reminded of the excitement I felt way back when. I loved wearing a new outfit, seeing friends I hadn’t seen in awhile and anticipating all the fun—and learning—in the year ahead. In a way, I get to recreate those feelings each time I put together a new issue of Roofing. I’m continually learning about the industry and this issue is no different.
For example, in “From the Hutchinson Files”, Thomas W. Hutchinson, AIA, FRCI, RRC, CSI, RRP, principal of Hutchinson Design Group, Barrington, Ill., and a Roofing editorial advisor, explains the virtues of cover boards. As he points out in his article, the use of cover boards can now be considered a good roofing practice.
Meanwhile, Jared O. Blum, president of the Polyisocyanurate Insulation Manufacturers Association, Bethesda, Md., explains a new white paper about polyisocyanurate insulation R-values in “Cool Roofing”. He states the R-value of polyiso roof insulation is reduced at some point at lower temperatures, but within any reasonable temperature range associated with typical building operating conditions in almost any climate in North America the difference appears to be very small.
In addition, we here at Roofing like to learn and try new things. As a result, this issue is interactive! Please download the free Layar Augmented Reality app, which was designed to bring print to life. Then hover over page 45 in the print edition with your smartphone or tablet to view a video about Virginia Polytechnic Institute and State University’s Indoor Practice Facility in Blacksburg, Va., which features almost 1,000 squares of 238-foot-long, curved, standing-seam metal panels. We’re really excited about this new capability and would love to know what you think.
- No special width membrane needed.
- No membrane to install between purlins.
- No penetrations of the new membrane.
- No excess membrane buried in the laps.
- No membrane orientation issues.
- No fastener jacking.