The Northlander™ Skyview Low Profile Polycarbonate Roof

Polycarbonate Roof on Customer Provided Framework

Often we have found that customers come to us with glazing requirements, but they have an existing framework that doesn’t require the strength of our big Skyview structural beams. That’s why we offer Skyview Low Profile.

• Works with 16mm sheets.
• Very flexible, easy to install.
• Mounts on existing aluminum, steel, or wood framework.

With the Skyview Low Profile system, it doesn’t matter if your rafters are 16” or 24” apart. And it doesn’t matter if there are slight inconsistencies in rafter spacing, all you need to do is trim the sheets to suit your openings. Alternatively, you can run horizontal strapping (purlins) and space the Skyview Low Profile glazing bars equally.

Our extruded aluminum base and pressure cap with gaskets are your best choice for a long-lasting, waterproof roof system. Much more durable and leak-proof than systems that use polycarbonate joiners.

Thinking About a Glass Roof?

Our polycarbonate sheets are lightweight, provide good insulation values and are so much easier to install than glass. Solarium glass is very heavy, and if you are using laminated glass it can be prone to cracking during installation or from the subtle shifting of the foundation. Polycarbonate sheets are many times stronger than glass, acrylic or even modified acrylic.

Need To Repair a Glass Roof?

Don’t forget how hot it was with that glass roof! And maybe it was leaking at the purlins (the joints between the glass units). Re-glaze with polycarbonate, it’s cooler, and the sheets run the full length of the roof, without the leaky purlins of glass systems.

Polycarbonate Light Transmittance and Insulation Values

Product	Structure	Thickness	Light Transmittance	SHGC (Solar Heat Gain Coefficient)	U-Factor W/m2K
Clear	3 wall	16mm (⅝”)	49%	0.51	2.27
Bronze	3 wall	16mm (⅝”)	25%	0.40	2.27
Opal Ice	3 wall	16mm (⅝”)	26%	0.37	2.27

Solar heat gain coefficient (SHGC) is the ratio showing the amount of the sun’s heat that can pass through the glazing. The lower the number, the less heat build up you will have in your sunroom.

U-Factor (or U-Value) is the rate of heat transfer from warm to cold areas in watts per square metre Kelvin (W/m2K). Lower numbers mean better insulation. Typical values:

• single glazed glass, 5.91
• double glazed with 13mm air space, 2.73
• double glazed with 13mm air space & low e, 1.70
• double glazed with 13mm air space, low e & argon, 1.36

Low Profile Glazing System Specifications

• Hidden fasteners
• Extruded aluminum base rail
• Extruded aluminum pressure cap
• Extruded aluminum screw cap
• 5/8″ thick multiwall sheets
• Impact resistant, polycarbonate is 200 times stronger than glass, 30 times stronger than acrylic and 15 times stronger than modified acrylic
• Lightweight, easy to replace your cracked or leaking glass roof
• Blocks almost 100% of harmful UV.
• Horizontal burn rate of 1 inch (25 mm) or less, when tested in accordance with ASTM D 635.
• Self ignition temp. of 986 degrees F (530 degrees C), when tested in accordance with ASTM D 1929.
• Flame Spread of 85 when tested in accordance with ASTM E 84.
• Smoke Developed Index less than 450 when tested in accordance with ASTM E 84; less than 75 when tested in accordance with ASTM D 2843.

Impact Strength

ASTM D4812 Izod Impact unnotched, 23° C	326 cm-kgf/cm
ASTM D256 Izod Impact notched, 23° C	92 cm-kgf/cm
ASTM D1822 Tensile Impact Type S	557 cm-kgf/cm2
Falling Dart 23° C ASTM D3029	1728 cm-kgf

Skyview Low Profile Price List