Solar power vents attics benefits

Solar powered attic vents  can be used to control heat and moisture. Today there are alternatives to roof louvers that are smart and effective. The solar varieties work of the principle of solar energy. These collect the energy from the rays of the sun during your day when your attic is at its warmest. Using this energy, it generates electricity. This electricity is used to operate an extremely high energy efficient motor that is placed inside the power vent. So what does this mean to you? You are generating free electricity and getting free power! You are not only reducing the total usage of electricity in your house but you are also using a source of energy that is renewable and works without leaving waste.
                                                               

There are many types. The roof mounted is one of them. This has a durable high quality two piece construction. This utilizes a solar panel that will collect the rays from the sun and convert it into electricity. This unit will      be used to operate a 24 volt DC motor that is housed in the inside of the power vent. These units are rust resistant and a have a steel dome that is galvanized. These are pretty low profile too. The solar panels are usually located in a separated location from the dome or the roof. There is no separate electrical outlet or installation that is required. Also this will work from sunrise to sunset without costing you any money.

                                                               
The next type is the gable mounted type. This type is used in conjunction with the solar gable attic fans. The best part about these solar vents & spray foam insulation is that the installation of them is really simple. There is no electrical hookup required. This will save you all the trouble from finding a low priced electrician because there are no complicated wirings that you would have to deal with.  All that you need to do is secure the solar panel and the fan. After they are secure, all that is required is the connection of a simple plug from one to another. These systems can be conveniently mounted on your home’s gable and hidden behind a decorative shutter. Also the solar panel will come with brackets. You can use these brackets to mount it on the roof easily.    The solar panels will absorb the incoming rays of the sun and convert it into electricity.
                                                               

The main advantage of using solar vents is that you can save tons on the electricity that you would otherwise use on cooling or heating your home. You are not only conserving energy but also you are making use of a renewable source of energy that does not leave any waste behind. Also these will help to prevent moisture damage to your attic. Normally moisture would enter your attic through daily activities like laundry cooking or bathing. This moisture would get into your attic and cause damage. Using such a setup would prevent such damage by preventing them moisture to accumulate in the first place.
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Save electricity bills by using radiant barriers

Householders own multitude of choices for enhancement that may bump up the value of their home even as improving its comfort.           

Are you a home owner and thinking to improve your house completely either by repainting a room or have you thought about projects which could add aesthetic value?

Reduce your house’s heat with the help of radiant barrier as it is easy to use, safe to handle and effectual at plummeting heat loss and it can also turn back the extreme rays of the sun during the summer time and keeping the house cooler too.

Radiant barrier is a comparatively latest item for consumption that consumers are gradually becoming aware of. It has a reflective opus placed in your attic that reflects heat before it enters your home. Just by applying a coat of paint under the decking surface heat could be transferred and it also seals up the cracks and crevices in the wall. 

Radiant barriers are materials installed in buildings to condense summer heat gain and winter heat loss, also to cut building heating and cooling energy usage.    

The main advantage of attic radiant barrier is that it helps in reducing air-conditioning cooling in warm or hot climates. Radiant barriers generally consist of a slight sheet or veneer of an extremely reflective material, typically aluminum applied to one or double sides of a number of substrate supplies. These substrates consist of Kraft paper, plastic films, cardboard, plywood sheathing, and air infiltration barrier material.

                                  

It is expected that a radiant barrier have the potential to slab 97% of the radiant heat immersed through a roof's surface; this can result in a 30-degree cutback in attic or creep space temperature.

Spray foam insulation: It is a general and an essential thing that we insulate our homes to condense speed of heat loss. The insulation is carried by using spray foam in the opening, chink and the crevice such that there is no amend of heat linking the walls of the house and the environment.

 Some of the Benefits of Spray Foam Insulation Include:

Reduction in sound diffusion, better environment, Keep Pests Outdoors, reduction in noise levels, Reduction in moisture and the development of Mold, apart from this it also has certain benefits like generating improved environment by plummeting dust, dirt, and pollen, Saving Energy structuring effectiveness & a Green Environment, produces air tight thermal seal, stops air and dampness penetration, Makes your home more comfortable, trim down capacity requirements, maintenance and wear of HVAC equipment.

Attic ventilation keeps the loft cooler in the summer and dry in the winter. Attic ventilation keeps the loft cooler in the summer and dry in the winter. Good exposure to air boosts the act of your insulation, expands the life of your HVAC unit and saves you even more money on energy bills.

Benefits of attic ventilation: it extends the life of your roof, cut downs the load on your HVAC system, stops ice damming in colder regions, and diminishes moisture build-up in the loft.

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A Read up About Attic insulation

When we are considering attic insulation, there are several factors that we should keep in mind. There are two main types of blow in attic insulation. These two are most commonly used. They are cellulose and fiberglass insulation. Also there is the blow in rock wool insulation but the use of it is not so common.

Cellulose, which is most commonly used, is a natural product of wood. It is primarily made out of natural newspaper. To meet the smoke development and flame spread requirements of today’s building codes; a fire retardant chemical is added to the cellulose. The fiberglass insulation material that is used is the same material that batts or roles of the fiberglass insulation except for the fact that it is chopped or cubed so that it can be easily installed with the help of the insulating blowing machine. The fiber glass insulation will typically consist of 20% to 30% of recycled glass.

                                               

The r value of the cellulose that is used is R-3.2 to 3.8 per square inch. The loose filled fiberglass will have an R-value of R-2.2 to 2.7 per inch cube. To achieve the desired R value, you will have to depend on both the depth of the insulation as well as the density.

There are varying R values for ceiling insulation based upon the energy codes as well the climate of your locality.  Based on the type of attic that you have, the code requirements may also vary. For example for joist assembled roof assemblies as well as for attics with single rafter may vary. There is a typically a chart on the insulation bag that will have the accurate depths for the various R values.

                                                 

There are depth markers that are required to be placed in attic space which the WSEC requires to help the inspector and the installer verify the depth of the insulation. These depth markers should be placed within every three hundred square feet of the attic area and these must face towards the attic.

                                                

The depth of the insulation is very important; however, checking the density of the insulation is also equally important.  The blow in insulation type can be fluffed up after it is installed. This is done so that it meets the required depth without actually meeting the required R value. This will settle over time so that the desired R value is achieved as the R value is lowered after it settles down.

The attic card is the easiest way to document the amount of R value installation. These are usually found stapled near the attic access to the truss. This card will also have information that is cited by the federal trade commission. Sometimes a chart is also attached with this.

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NASA Spacecraft Closes in on Comet Tempel 1

NASA is about to discover how solar heat devours a comet.

"For the first time, we'll see the same comet before and after its closest approach to the sun," explains Joe Veverka, principal investigator for NASA's Stardust-NExT mission.

The comet is Tempel 1, which NASA's Deep Impact probe visited in 2005. Now another NASA spacecraft, Stardust-NExT, is closing in for a second look on Valentine's Day, Feb. 14, 2011. The two visits bracket one complete orbit of the comet around the sun--and a blast of solar heat.

"Close encounters with the sun never go well for a comet," says Veverka. "Fierce solar heat vaporizes the ices in the comet's core, causing it to spit dust and spout gas. The cyclic loss of material eventually leads to its demise."

Researchers suspect the flamboyant decay doesn't happen evenly all over a comet's surface*, but until now they've lacked a way to document where, exactly, it does occur. Stardust NExT will image some of the same surface areas Deep Impact photographed 6 years ago, revealing how these areas have changed and where material has been lost.

"Deep Impact gave us tantalizing glimpses of Temple 1," says Veverka. "And we saw strange and unusual things we'd like a closer look at."

At a January 2011 press conference, Veverka and other Stardust-NExT team members listed the features they're most interested in seeing again:

For starters, parts of the comet's surface are layered like pancakes.

"Earth has layers because water and wind move dirt and debris around here, but layering on a comet was a surprise – and a mystery," says Veverka.

Proposed Mission to Jupiter System Achieves Milestone

With input from scientists around the world, American and European scientists working on the potential next new mission to the Jupiter system have articulated their joint vision for the Europa Jupiter System Mission. The mission is a proposed partnership between NASA and the European Space Agency. The scientists on the joint NASA-ESA definition team agreed that the overarching science theme for the Europa Jupiter System Mission will be "the emergence of habitable worlds around gas giants."

The proposed Europa Jupiter System Mission would provide orbiters around two of Jupiter's moons: a NASA orbiter around Europa called the Jupiter Europa Orbiter, and an ESA orbiter around Ganymede called the Jupiter Ganymede Orbiter.

"We've reached hands across the Atlantic to define a mission to Jupiter's water worlds," said Bob Pappalardo, the pre-project scientist for the proposed Jupiter Europa Orbiter, who is based at NASA's Jet Propulsion Laboratory in Pasadena, Calif. "The Europa Jupiter System Mission will create a leap in scientific knowledge about the moons of Jupiter and their potential to harbor life."

The new reports integrate goals that were being separately developed by NASA and ESA working groups into one unified strategy.

The ESA report is being presented to the European public and science community this week, and the NASA report was published online in December. The NASA report is available at http://www.lpi.usra.edu/opag.

The proposed mission singles out the icy moons Europa and Ganymede as special worlds that can lead to a broader understanding of the Jovian system and of the possibility of life in our solar system and beyond. They are natural laboratories for analyzing the nature, evolution and potential habitability of icy worlds, because they are believed to present two different kinds of sub-surface oceans.

The Jupiter Europa Orbiter would characterize the relatively thin ice shell above Europa's ocean, the extent of that ocean, the materials composing its internal layers, and the way surface features such as ridges and "freckles" formed. It will also identify candidate sites for potential future landers. Instruments that might be on board could include a laser altimeter, an ice-penetrating radar, spectrometers that can obtain data in visible, infrared and ultraviolet radiation, and cameras with narrow- and wide-angle capabilities. The actual instruments to fly would be selected through a NASA competitive call for proposals.

Ganymede is thought to have a thicker ice shell, with its interior ocean sandwiched between ice above and below. ESA's Jupiter Ganymede Orbiter would investigate this different kind of internal structure. The Jupiter Ganymede Orbiter would also study the intrinsic magnetic field that makes Ganymede unique among all the solar system's known moons. This orbiter, whose instruments would also be chosen through a competitive process, could include a laser altimeter, spectrometers and cameras, plus additional fields-and-particles instruments

The two orbiters would also study other large Jovian moons, Io and Callisto, with an eye towards exploring the Jupiter system as an archetype for other gas giant planets.