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The effect of a roof rack on gas economy is negligible -- until you place a luggage carrier on the rack. The increased profile of the carrier increases the car's air resistance, which becomes significant at highway speeds.
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∙ 15y ago
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What does roof load rating mean?
The roof load is a rating that determines how many pounds per square foot the roof will withstand. Most roofs are rated above 300 pounds per square foot or more.
Is light colored roof or a dark colored roof more energy efficient?
Most believe that the only function of a roof covering is to provide a material to shed water, but of equal importance is its ability to provide thermal protection. In a house with a cathedral ceiling, the roof forms the ceilings of the rooms below. A dark colored shingle will affect the interior environment by absorbing solar heat from the sun during the day. This same roof, on a clear, cool night will transmit more heat from the house than would a light colored roof. A white or nearly white roof will reflect solar radiation during the day and will not radiate much heat at night. Unfortunately the roof has to stay relatively clean if it is to function properly.
Why does an iron roof feel much hotter than a light-colored tile roof on a hot day?
Iron is a better heat conductor (regardless of color), allowing it to transport more of the heat it has to your body faster.
When two cars sit in the sun all day the one with the black roof gets hotter than the on with the white shinny roof why?
Because black is a dark color and if a car is dark colored the more hotter it gets. It all has to do with the pigmintation. Its the same thing with clothes.
What is Internal Floating roof tank?
Floating roof tanks are broadly divided into external floating roof tanks (usually called as floating roof tanks:FR Tanks) and internal floating roof types(IFR Tanks). IFR tanks are used for liquids with low flash-points(e.g. ATF, MS. gasolene, ethanol). These tanks are nothing but cone roof tanks with a floating roof inside which travels up and down along with the liquid level. This floating roof traps the vapor from low flash-point fuels. Floating roofs are supported with legs on which they rest. FR tanks do not have a fixed roof (it is open in the top) and has a floating roof only. Medium flash point liquids such as naphtha, kerosene, diesel, crude oil etc. are stored in these tanks. sealions
Why do A car uses more petrol when it is fitted with a roof rack?
Wind resistance.
Which is more fuel efficient in general automobile roof rack or hitch rack for bicycles?
hitch rack
Which three are most likely to waste fuel B Reducing speed B unnecessary weight C Using wrong grade of fuel D Under-inflated tires E Using different brands of fuel F A fitted empty roof rack?
- Carrying unnecessary weight - Under-inflated tyres - A fitted empty roof-rack
How do you fit a Roof rack?
You can fit a roof rack in many different ways for different vehicles. Vehicles will either use fixpoint locations pre-drilled into the roof, use the securing points underneath the rubber door surrounds or secure on a vehicles pre-fitted roof rails. These pre-fitted roof rails normally run from front to the rear of a vehicle, allowing easy fitment anywhere along the rail. For a comprehensive guide of fitment, type Carracks.co.uk in to Google, you can see how it works and also where to buy the parts that you need for a roof rack.
Can a gutter fitted 110 roof rack fit a gutterd discovery?
Yes, ish! I fitted a gutter mounted 90 rack to a 200tdi discovery. I had to bend the legs out a little to get it on but it did go on. If its a full length 110 rack though it will be too long, in which case you can sell it to me because I need one! :D
Where can i buy a roof rack tent?
You can purchase a roof rack tent at your local sears store.
Do you need a roof rack to have cargo on your roof in California?
no
What is that thing that goes on top of a vehicle that you can pack stuff into it?
roof rack. roof top cargo rack. either or
How do you remove a Chevy Trailblazer roof rack?
The entire rack is screwed into the roof of the SUV, up from the SUV roof into the rack. However, if you want to remove the 2 cross-bars, pop off the black plastic "half-cones" at the front of rack, and then the bars can be removed.
Where can I find a roof rack for a cheap price?
A roof rack for a cheap price can be found online at the Thule website. Be sure to get the locks so that your rack cannot be stolen from the top of your car.
Where can one purchase a roof rack for a van?
There are many places one can purchase a roof rack for a van. In addition to purchasing from a local dealership, one might also be able to purchase a rack from Amazon.
Upgrade your Bike Rack?
form_title=Upgrade your Bike Rack form_header=Did you add more people to your family? Or start hanging out with more bike-loving enthusiasts? Then it's time to upgrade! Where is the bike rack located?= () Roof () Back What types of bikes do your transport?=_ How often do you use the bike rack?=_
