VELUX America Produces Three Skylight Videos for Roofing Professionals

VELUX America has produced three informational and instructional videos, none longer than three minutes, for roofing industry professionals. Topics include skylight replacement profit potential and customer benefits, skylight selection and skylight installation. The videos feature ENERGY STAR-certified VELUX Solar Powered Fresh Air Skylights and explain the advantages of skylight replacement or new installations during scheduled roofing work from the roofer and customer perspectives. The videos also explain the 30 percent federal tax-credit eligibility for the homeowner on product and installation costs, as well as solar-powered blinds.

Touchscreen Operates Electric- and Solar-powered Skylights and Blinds

VELUX America's KLR 200 Intelligent Touch remote control

VELUX America’s KLR 200 Intelligent Touch remote control

VELUX America has introduced the KLR 200 Intelligent Touch remote control for its ENERGY STAR-certified electric- and solar-powered skylight lines to the roofing industry.

This completely redesigned touchscreen unit is powered by VELUX INTEGRA to operate VELUX electric and Solar Power Fresh Air Skylights and blinds. It is easier to program and use and comes with pre-set programs that automate commonly used functions of the skylights. The touch-sensitive screen utilizes easily understood icons and is extremely user friendly.

VELUX Solar Powered Fresh Air skylights, along with solar-powered blinds operated by the new remote, plus installation costs, are eligible for a 30 percent federal tax credit. VELUX is an ENERGY STAR partner and has been recognized as a Partner of the Year.

Clean, Quiet and Safe Glass

VELUX America has introduced “Clean, Quiet & Safe Glass” for its skylights.

VELUX America has introduced “Clean, Quiet & Safe Glass” for its skylights.

VELUX America has introduced “Clean, Quiet & Safe Glass” to the roofing industry. This laminated glass will keep ENERGY STAR-certified VELUX Solar Powered Fresh Air skylights cleaner, reduce outside noise, and take the guesswork out of interpreting local building codes for the type of glass required for out-of-reach applications.

Clean: A thin coating of titanium dioxide and silicone dioxide on the exterior surface of the laminated glass will smooth the glass and, with the help of the sun, destroy organic matter deposited on skylights over time. Then, the next time it rains, this organic matter is washed away keeping the skylight glass cleaner longer.

Quiet: Laminated glass reduces outside noise by up to 25 percent when compared to a standard double pane glass and up to 50 percent more when compared to a plastic skylight.

Safe: U.S. building codes require laminated glass be used in out-of-reach applications where any point of the glass is 12 feet above the floor of the room. VELUX Clean, Quiet & Safe glass meets or exceeds this important building code requirement nationwide and also carries a 10-year warranty against hail damage on the glass itself.

In addition to its water-shedding properties, the new glass option carries a 10-year hail warranty and is superior to regular tempered glass in U-Value, UV protection and fade protection. Beginning in 2014, it will be available on most VELUX skylights and will be the standard glass option for the VELUX Solar Powered Fresh Air skylights. The new glass option is also available in Impact, Miami-Dade, White laminated and Snowload models.

The Solar Powered Fresh Air Skylight, now standard with Clean, Quiet & Safe glass, is also a No Leak Skylight and carries the VELUX 10-year installation warranty plus 20-years on glass, 10-years on product, and 5-years on blinds and controls. The units use standard VELUX engineered flashing and energy efficient LoE3 glass. VELUX solar powered skylights, along with solar powered blinds, as well as the installation costs, are eligible for a 30 percent federal tax credit.

Roof Windows Are Operated By Hand

VELUX's GDL CABRIO roof window

VELUX’s GDL CABRIO roof window

Roof windows and skylights share common elements, including glass, wood frames, sashes and aluminum. But skylights are designed for out-of-reach applications and can be automated while roof windows are within reach and are operated by hand.

Roof windows utilize a ventilation flap that allows fresh air circulation even while the unit is closed. Roof window sashes also rotate inward for easy cleaning from the inside.

VELUX produces two types of roof windows: the deck mount GPL Top hinged model which opens to a 45-degree angle to satisfy current requirements for emergency escape and rescue, while admitting natural light and passive ventilation, and the deck mount GDL CABRIO roof window which utilizes a dual-sash operation that allows the top to open upward to 45 degrees for ventilation and the bottom to open outward to create a roof balcony. The design makes the CABRIO a “fresh air” alternative to a dormer and it can also provide emergency escape and rescue capabilities.

Both models can be fitted with blinds and screens and provide decorative flair in addition to their functional features.

Control Heat and Glare through Polycarbonate, Acrylic and Plastic Skylights

Liquisol Solar Control Paint

Liquisol Solar Control Paint

Liquisol Solar Control Paint is designed specifically for polycarbonate, acrylic and plastic skylight applications. It provides long-lasting solar control to materials and surfaces where window film cannot be used.

Liquisol’s paint line includes 4Ever, 4EverBlue, 4EverDark and 3Seasons. Each can be applied to glass, acrylic or plexiglass conservatories, skylights and sky domes to reduce heat and glare. Liquisol paints let in sunlight but reflect infrared heat while blocking more than 98 percent of harmful UV rays. This makes the indoor environment more comfortable, while lowering cooling costs and extending the life of furniture, fabrics and artwork by resisting discoloration.

Liquisol’s 3Seasons was designed for hot summer, extremely cold winter climates. This temporary paint can be easily removed and reapplied when needed, allowing excessive solar heat to be blocked most of the year while taking advantage of solar gain during winter.

Liquisol’s 4Ever, 4EverBlue and 4EverDark are permanent solar reflective paints. Each was designed to provide a choice of visible light transmissions and heat rejection. The newest of these, 4EverDark, provides extreme heat and glare protection while 4Ever lets in the most light and is optimal for applications where customers want heat and glare control combined with a maximum amount of light.

4EverBlue puts off a blue hue designed to mimic the sky, giving occupants the feeling of beautiful weather outdoors while providing an efficient solar control solution. 4EverBlue has a 57 percent Total Solar Energy Rejection.

Rooftop Alterations, Like Skylights and Roof Monitors, Can Drive Building Value and Performance

Rooftops are an immensely underutilized resource for optimizing building performance. Rooftop strategies can include painting the roof white or installing a solar reflective “cool roof” to reduce summer cooling loads; covering the roof with vegetation to improve insulation, reduce storm-water runoff and provide community spaces; and mounting solar photovoltaic or solar hot-water panels to reduce utility bills.

The multiple functions of rooftop monitors. RENDERING: FCGA Architects

The multiple functions of rooftop monitors. RENDERING: FCGA Architects

Adding daylighting and ventilation through skylights and roof monitors is a strategy with growing popularity and potential. Common sense might lead us to believe that penetrating the roof with skylights and monitors could compromise a building’s insulation and thermal performance. However, with the availability of advanced products, such as glazing, suspended film and high-performance sealants, well-designed and constructed rooftop penetrations can successfully lower energy costs and improve occupant comfort and health.

Rooftop prescriptions vary for every individual project, and a variety of factors must be considered before proceeding with construction. For example, rooftop penetrations will primarily only affect the floor directly beneath the rooftop, so single-story buildings or multistory buildings with a central atrium are ideal. When further determining which types of projects would benefit from roof penetrations, the design team must perform thorough climatic analysis, examine the existing infrastructure and occupancy conditions, and weigh all variables through cost balancing. Before diving deep into analysis, it’s important to understand different types of rooftop penetrations in this capacity and how their design and operational synergies can enhance the value and performance of a building.

Design Synergies

Traditional skylights, tubular skylights and roof monitors are the main types of rooftop daylighting/ventilation penetrations and should be considered individually because of their varying benefits. Traditional skylights offer natural daylight, which can improve the health and productivity of building occupants. Tubular skylights capture sunlight from a small, clear dome on the roof; pass the light through a highly reflective tube; and diffuse the light through a lens into the building. Because of their high efficacy and smaller penetration area, tubular skylights have better thermal performance and are more suitable for harsher climates than traditional skylights.

Roof monitors are vertical fenestrations built into raised structures atop the roof. If the monitors are operational, they contribute exponential building-performance enhancements beyond the other penetration types, including stack-effect ventilation. The figure above depicts the many functions of roof monitors: natural daylighting, ventilation, passive heating and cooling, glare reduction and structural support for rooftop solar-power systems.

As with skylights, roof monitors help disperse natural daylight more evenly and completely throughout a room than windows on the side of a building. When paired with thermal mass, such as concrete or water, vertical glazing on the roof helps capture heat from the sun to offset the building’s heating load.

Glare presents a big problem for worker productivity in buildings; careful design of roof monitors and ceiling systems can help distribute the light and reduce contrast glare. Finally, monitors can be topped with angled roofing that matches the optimal sun exposure angle for solar panels mounted atop.

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