AF-10-C04-CMF | Aura Fan Curb Mount Flange 10″ Diameter 4″ Collar
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- Shipping Policy
- Drawings & Specs
- Installation Guide
- Roof Curb Brochure
- Roof Curb Drawings
- Roof Curb Installation
Before 2015, Carriers used a simple formula to determine the cost of shipping based on the weight of the package and the distance the package traveled. The heavier the package and the further it was transported, the higher the cost.
However, trucks are limited by the volume of packages they can transport. Large packages that are light weight were more of a limiting factor than simply the weight of the package. Therefore they instituted a “Dimensional Weight” which is often used as the “Billable Weight” to calculate the cost of shipping. Our aluminum products are strong, durable, and naturally weather resistant. They are also lightweight relative to their shipping volume, so nearly all of our shipping costs must be calculated on the dimensional weight.
We are experienced in finding the most cost-effective shipping options available, but it takes our skilled and resourceful office staff time to find the most cost-effective transport solutions. We have boxes that can fit mutiple products, we utilize pallets when appropriate, and have several freight companies which we have built relationships with over the years. This is why we don’t commit you to a shipping charge when you select your vents, but rather take the time to find the best manual price that we can before we send you a follow-up email with the shipping quote added to the price of the vents. We appreciate your patience.
Basic dimensions of the Aura Fan and it’s identifying attributes. Primary identifying dimensions of vents and fans are the inside diameter of the Head, which equals the diameter of the hole being vented, and the height of the Collar which is the solid tube between the Head of the vent and the Flange which attaches to the roof.
Louvers are the vertical openings in the vent, which facilitates the flow of air, while keeping animals, insects, debris, and embers out. The combination of inner and outer Louvers on our patented “Aura” series of vents and fans are shaped to create a positive vacuum effect which draws air out of the vent, utilizing a physical principle known as the Venturi effect.
Expected snow and rain in your region and the pitch of the roof are the key consideration when choosing the height of the collar of your roof vents. Zones 1 and 2 are not expected to sustain significant snow packs, while zones 3-7 are likely to experience snow, possibly for weeks or months. Vent collars under 4 inches are inappropriate for flat (0/12 pitch) roofs because even heavy rain can splash water into a shorter vent.
Installation Guides Under Development. Coming Soon.
The Aura Fan EXHAUSTS CONTINUOUSLY whether the electric motor is ON or OFF. When the fan is off, outside air moving against the Aura Ventilator causes the Venturi effect, thereby creating an exhaust. The exhaust is created without the use of electricity or moving parts. On the days when the fan is not needed, the Aura Vent will still operate passively; this increases the life of the motor since it is not in constant use. The Aura Fan Ventilator reduces energy consumption.