The TGR 014 combines 99.9% reflective rigid tubing with a 30-foot maximum run capability, making it the go-to solution for long-distance natural lighting in Montana homes where traditional skylights won’t work. This isn’t about aesthetics or energy savings. It’s about getting usable daylight into windowless bathrooms, dark hallways, and interior rooms without tearing apart your roof structure.
Maximum Light Transmission Through Rigid Design
The 99.9% reflective silver-coated rigid tubing delivers measurably brighter light than flexible alternatives. Rigid tunnels provide significantly brighter light and can span longer distances (up to 30ft) compared to flexible tunnels. That reflectivity number isn’t marketing fluff — it’s the difference between a dim glow and actual working light in your laundry room.
| Specification | Value |
|---|---|
| Diameter | 14 inches |
| Maximum recommended length | 30 feet |
| Coverage area | 200 to 325 sq ft |
| Reflectivity | 99.9% |
| Roof pitch range | 14° to 60° |
| Included tunnel length | 48 inches (4 feet) |
The rigid construction maintains light intensity over distance. The tunnel connection system uses Flexi Loc for quick assembly. The adjustable 12-inch elbow rotates up to 45 degrees to navigate around attic obstructions. Extension tubes come in 24-inch sections when you need more reach.
Installation Flexibility for Real Jobsites
The Flexi-Loc™ quick-connect tube system actually works. No crimping, no tape, no callbacks for separated sections. Pivoting pitch adaptors handle Montana’s varied roof slopes without custom cutting angles.
What’s included: Flashing complete with dome, 4” pre-installed top collar, (2) 12” elbows, 24” extension, Ceiling diffuser assembly complete with frosted diffuser. That’s enough components to handle most attic configurations straight out of the box.
Installation difficulty rates as easy to moderate, taking 2 to 4 hours. Required tools: Power drill, Screwdriver, Measuring tape, Keyhole or reciprocating saw, Ladder, Caulk gun, Hammer. Nothing specialized. Any competent contractor has these on the truck.
The rough opening measures 14 1/2 x 18 inches at the roof and 15 1/4 inches at the ceiling. Weight comes in at approximately 29.3 lbs — manageable for one person in the attic.
Cold Climate Performance Details
The energy-efficient frosted dual diffuser spreads light evenly while reducing heat loss. Choose between clear UV-resistant acrylic or impact-resistant polycarbonate (Model TGR 014 1000) domes depending on local conditions.
The low-profile dome and flashing sit parallel to the roofline. Less surface area exposed to Montana’s temperature swings means less expansion and contraction stress on seals. The integrated low-profile metal flashing handles the freeze-thaw cycles better than plastic alternatives.
Compatible roofing materials include asphalt shingles, wood shakes, slate, and low-profile metal roofing. The system works across Montana’s typical roofing choices.
Warranty coverage breaks down as follows: 20-year limited warranty on reflective material, 10-year limited warranty on Sun Tunnel components, 10-year ‘No Leak’ installation warranty when installed with VELUX flashing by a certified professional, 10-year warranty against dome yellowing. The rigid silver tunnel carries a 20 year warranty.
Common Questions
What rooms work best for the TGR 014? Interior rooms without direct window access: bathrooms, hallways, closets, laundry rooms, and pantries. The 14-inch model covers 200 to 325 sq ft — perfect for typical Montana bathrooms and utility rooms.
How does rigid compare to flexible sun tunnels? Flexible tunnels are easier to install around obstacles but lose light intensity over length. Rigid delivers more light but requires planning the path. For runs over 10 feet, rigid wins every time.
What’s the difference between low profile and pitched flashing? The TGR (Low Profile) is designed for shingle roofs and sits flatter to the roofline. The TMR (Pitched) features a raised flashing designed to capture more light from various angles, particularly on steeper or tile roofs. Low profile works best for south, west and east facing roofs.
Do these meet energy codes? Note: Does not typically meet ENERGY STAR 7.0 requirements (Model 014 0000/1000). The light benefits outweigh the minimal heat loss for most applications.
What do contractors think? Professional contractors generally view the VELUX 14″ Rigid Sun Tunnel Low Profile positively, especially for its durability and ease of installation. The low-profile metal flashing design is highlighted for its sleek appearance and compatibility with various roofing materials. Average rating sits at 4.2 across 103 reviews.
Frequently Asked Questions
Q: How far can I run a VELUX TGR 014 rigid sun tunnel through my attic?
The VELUX TGR 014 has a maximum recommended tunnel length of 30 feet, which handles most residential attic runs. The kit includes 48 inches of rigid tubing plus two adjustable elbows and extension options in 24-inch sections to reach your ceiling location.
Q: What’s the actual light coverage area for the 14-inch VELUX sun tunnel?
The VELUX TGR 014 covers 200 to 325 square feet with natural daylight, making it suitable for typical bathrooms, hallways, and laundry rooms. The 99.9% reflective silver-coated rigid tubing maintains brightness even at maximum distances.
Q: Can I install a VELUX TGR 014 on any roof pitch?
The VELUX TGR 014 works on roof pitches from 14° to 60° (approximately 3:12 to 20:12), covering most residential roof angles. The pivoting pitch adaptors included in the kit adjust to match your specific roof slope during installation.
Q: What’s included with the VELUX TGR 014 sun tunnel kit?
The VELUX TGR 014 comes with flashing complete with dome, 4” pre-installed top collar, two 12” adjustable elbows, 24” extension, and ceiling diffuser assembly with frosted diffuser. You’ll need basic tools like a drill, saw, and caulk gun, but all the specialized tunnel components come in the box.
Q: How long does VELUX warranty their rigid sun tunnels?
VELUX provides a 20-year limited warranty on the reflective material in the TGR 014, 10-year warranty on sun tunnel components, and 10-year ‘No Leak’ installation warranty when installed with VELUX flashing by a certified professional. The dome carries a 10-year warranty against yellowing.
Q: What’s better for long attic runs — VELUX rigid or flexible sun tunnels?
VELUX rigid tunnels like the TGR 014 deliver significantly brighter light than flexible versions and maintain that brightness over distances up to 30 feet. Flexible tunnels bend easier around obstacles but lose substantial light intensity over long runs, making rigid the clear choice for distances over 10 feet.
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