
Tim Graboski Roofing- “See how a solar roofing system works…”
Posted by admin in Solar roofing materials on 04 9th, 2010
www.GraboskiRoofing.com
Produced by: Luxeve Media, LLC
Duration : 0:3:47
read comments (0)Solar Pop Can/ Corrogated roofing Hybrid Heater
Posted by admin in Solar roofing materials on 03 26th, 2010
This solar heater is a hybrid heater made from corrogated roofing material and pop cans. the box is made from 2×6 metal studs and backed with a piece of 1/4 inch plywood. It is insulated with fiberglass ceiling tiles and aluminum bubble paper. Output temps are around the 190 dg mark at high sun times…At 430 m output was 145 dg outside temp 55 . no electric required . Difficulty – bird house building skills. cost 50 bucks.
here is another great design by lloydmer!
http://www.youtube.com/watch?v=3X4xiYwKCYc&feature=player_profilepage#
Duration : 0:3:13
Please Help. I am stuck. I have tried to give you all my thoughts but you still never helped. So Please help?
Posted by admin in Solar roofing materials on 03 25th, 20101. ASHI standards require a home inspector to identify and
describe the type of structure and materials of construction
before
A. testing systems scientifically.
B. evaluating each system.
C. establishing value.
D. reporting remaining usefulness.
2. A good place to begin an interior structure inspection is the
A. garage. C. basement.
B. attic. D. plumbing system.
3. Surface molds and sapstain fungi discolor wood paneling
A. and are the most common cause of wood decay.
B. but don’t cause structural damage.
C. but exist only in very dry conditions.
D. and cause a burned or charred appearance on wood surfaces.
4. To be properly vented, the foundation should have one vent for every _______ square feet
of floor space.
A. 50 C. 500
B. 150 D. 1500
5. The primary horizontal load-bearing component in a floor frame is the
A. jack stud. C. beam or girder.
B. brick pier. D. sill plate.
6. The slope of a roof is
A. the length of a rafter from the top plate to the ridge.
B. generally expressed as a percent.
C. the ratio between the units of run and units of rise of a roof.
D. determined by measuring the total height of the building.
7. One improper construction method that can result in structural weakness is
A. the use of kiln-dried lumber in structural components.
B. grading soil to direct runoff away from the structure.
C. retention of topsoil and trees on the home site.
D. construction of artificial terraces using debris and backfill.
8. Stairs are considered hazardous when
A. the height of the risers varies by more than 3/8 inch.
B. the width of the treads does not strictly comply with codes.
C. risers are less than 73/4 inches high.
D. they’re covered with carpeting.
9. Two common cosmetic flaws in gypsum wallboard include popping nails and
A. header cracks. C. sagging ceilings.
B. termite cavities. D. brown water stains.
10. Which of the following statements about dehumidifiers is true?
A. Dehumidifiers automatically dispose of water produced by their operation.
B. Dehumidifiers should have automatic shutoff devices to prevent overflow.
C. Dehumidifiers are usually found in the attic.
D. Dehumidifiers are the best method for fail-safe moisture control in basements.
11. Structural failure in a roof may be due to
A. the presence of a vapor barrier between the attic floor and the ceiling below.
B. too little span between supporting members.
C. cuts made in rafters or trusses for addition of components such as stairways and fans.
D. use of dried wood for structural members.
12. A horizontal supporting member placed between two opposite rafters is called a
A. collar tie. C. chord.
B. ridge. D. jack rafter.
13. The term live load refers to the
A. weight of the structural components only.
B. weight of the occupants and furnishings.
C. weight of the foundation walls.
D. total weight of the entire structure.
14. A load-bearing horizontal component over a wall opening is called a
A. header. C. sill plate.
B. stud. D. wall joist.
15. Sagging in floor joists is typically caused by
A. oversized joists.
B. undersized joists.
C. improper nailing of sub-flooring.
D. improper moisture content of the wood.
16. Brick ties in brick veneer walls allow for
A. water drainage. C. expansion.
B. air circulation. D. inspection.
17. While inspecting a masonry foundation, you find evidence of “efflorescence.” This is
probably due to
A. leftover residue from construction.
B. too much lime in the concrete.
C. fungus.
D. water seepage.
18. Your inspection report does not need to include information on
A. steepness of roof pitch.
B. adequacy and condition of flashing.
C. condition of solar heating system equipment.
D. type and condition of gutters and downspouts.
19. Bulging of exterior walls usually results in
A. sagging of windows.
B. a rise in the main floor beam.
C. settling of corner posts.
D. sagging of the ridge board.
20. The structural technique that includes long vertical studs running from the sill plate to the
second floor roof frame is called _______ framing.
A. platform C. balloon
B. vertical D. post
You could re-post in Y!A Home & Garden, to improve your chances of getting answers.
I need some help with these electric vehicles. Please read?
Posted by admin in Solar roofing materials on 03 18th, 2010Ok, so I am a thirteen year old environmentalist and i have my goal set in life. To create a vehicle for everyone that runs on electricity. I love electric cars and i have drove one before. There quiet and slick. I have plans for one already and I am an eighth grader whiz. I am very interested in this field but i need some information. I would like to start actually building a car either in the summer, or a year or two from now. But before i get into that i am going to ask about school.
School:
should i take Earth Science or Biology? What subject would prepare me better for all of this.
i am in algebra one and take geometry next year
i have wood chop next marking period and we build an air car (tiny compressed air though)
Should i go to a new jersey vocational school in the future?
what should i Base my classes and electives around?
any good colleges after high school (thinking ahead)
I also would like some incite on your experiences with electric cars, any thing is good.
The actual cars now.
first, am i to young to start this journey?
is this a good thing to do and am i going to enjoy it?
now about this car again…
material: titanium body and plastic roof
titanium is stronger than steal but lighter than aluminum
plastic roof will be explained faster
(is titanium too expensive? an alternatives?)
Speed: 40mph
(just for now but eventually i would progress)
windows
lexiglas
(light and durable, super strong kind)
range: 20-30miles
(more is great but its a start)
mirrors, windshield wipers, up and down windows, fits at least two people, doors, small front that doesn’t extend out like i.c.e. cars, just simple for now but it will progress as i get older and more intelligent. and we need a radio
parts being used:
building a motor and system is a lot of work, time, and money. So i figured that i could buy a commercial one.
wheels, not too heavy but not too ugly
solar cells on top of the car that feed electricity to the batteries, evergreen
batteries? any idea what is readily available and cheap?
budget? what should my budget be?
motor and axel? and ideas?
this needs a lot more work as you can see, but i am determined to create a street legal electric car. I was looking around for solar ev’s and came across this one. should i buy this kit and transform it into what i could see? this comes with most of what i need.
http://www.sunnev.com/
please share your incite, i do have a few more plans for this car, but they are very complex. email me if you would like to talk or shed some light on the situation.
WOULD THIS WORK?
would my idea work or would it way the car down too much adn make it slow and heavy?
the car creates its own energy like the Chevy volt but does not give off pollution.
Using the Faraday effect, i would turn the axle into a generator. The axel would be magnetic or made with magnets and a large spoil of wire would be placed around it. as you drive and the axle spins that spins the magnets, this could potentially charge the batteries.
^^^^^would this work? too heavy? to small? not enough energy?
Thank you for your time and thanks for reading this!
i am serious and any good programs or books to use? and any educational things that i can use.
There’s no better way to learn about building EVs then to build one.
The best home built car in my opinion would have a polyurethane foam and fiberglass composite sandwich for body, and carbon fiber frame, with titanium where the moving components are joined. But that is little too ambitious for your first project.
For your first car you just want to get it built, don’t worry about making it perfect, you can modify it later on or move on to new projects.
Solar panels are also expensive. Here’s a good deal on an 80 watt panel.
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=66369
80 watts is a little more then 1/10 horsepower.
when you pedal your bicycle you’re probably averaging about 75 watts of power, and you average 15-20 mph. For short bursts you can get up to 300 or maybe 400 watts, but only for a very short period of time. Lance Armstrong can’t even produce much more then that, but his superior conditioning allows him to produce that power for long periods of time.
So if you make the vehicle light enough, that solar panel could move the car at an average speed of 10 mph. If you want to go any faster then that, the solar panel will just be there to extend the range. But I say scrap the solar panel, it’s too expensive and it complicates things and doesn’t really give you that much benefit.
Your axle generator idea is good thinking. Of course you should know it would take more power away from the wheels then it would put back. But that doesn’t mean you can’t use the idea. It’s called regenerative breaking. Any electric motor can also be an electric generator. For regenerative breaking, you need a controller that can reroute the power back into the batteries from the motor thus slowing down the car.
I would recommend starting with a rolling chassis and building your electrical components into it. Get yourself a used 4 wheeler, which you can pick up cheap because you don’t care if the engine runs, as long as the chassis, suspension and breaks are good. Then pick up the rest of what you need here:
http://www.electricmotorsport.com/
I recommend the sevcon millipak controller because of it’s regenerative breaking capabilities, coupled whatever motor you like the best, I think the pmac is the best value at 48V. Then get a throttle and 4 12v batteries. It will all cost about $2000, and be a pretty kick ass electric vehicle.
But before you even do that, you can get a fully functional EV, out of the box, for $300 here:
http://www.kingsmotorbikes.com/izip_electric_bicycles_izip_bicycles_izip_hybrid_bicycles.html?scart_affiliate_id=72
For education, it sounds like you’re in to engineering. Don’t worry about vocational stuff unless it sounds like fun to you. Take your math and science classes and apply to whatever college you want.

