Radiant Barrier

The Second Law of Thermodynamics
Heat only flows when there is a difference in temperature and it always flows from the higher temperature to the lower temperature level. (Heat loss in winter, heat gain in summer)

Yes! HeatBloc-75 allows water vapor to permeate, and does not trap water vapor within roof decks or sidewalls. This is vitally important in attic conditions.

Yes, but HeatBloc-75 is normally more effective when used under roofs. Roof surfaces are generally much hotter than sidewalls. Up to 80% of the summer heat gain is from above. Low e surfaces become more effective in controlling radiant heat transfer as the temperature of the radiant heat source increases. However, in tropical climates where no insulation is used in sidewalls, HeatBloc-75 can substantially help increase interior comfort levels.

Yes. In vent-skin roofs HeatBloc-75 should be applied on the underside of the outer roof skin facing down into the vent channel. On vent-skin sidewalls HeatBloc-75 should be applied on the inside of the outer skin facing into the vent channel.

Yes. It is an effective heat reflector when used behind wood stoves or on walls adjacent to ceiling mounted radiant heaters in commercial applications.

Absolutely! Radiant barriers only control radiant heat loads. Good attic ventilation helps control convection loads. Together they raise the comfort levels and lower cooling costs. Venting to allow 2.5 air changes per hour should be specified as a minimum.

No. R-values apply only to solid insulation or to insulating systems that control heat flows other than radiation. In independent testing of the product at the University of Kansas, the R-value of the insulation, after applying HeatBloc-75 to the roof deck, increased by 87% to 98%.

Solar Panels

How Solar Works

Solar electricity works exactly the same as the electricity you buy from the utility company. You turn on lights, plug in lamps and power appliances the same way you do right now. In fact, if you didn't see solar modules on the roof, you'd never notice any difference-except a lower electric bill.

Did you know?
Solar energy is the cleanest, most abundant, renewable energy source available. And the U.S. has some of the richest solar resources shining across the nation. Today's technology allows us to capture this power in several ways giving the public and commercial entities flexible ways to employ both the heat and light of the sun.

Relax, It's Easier Than You Think

While the science of converting sunshine into electricity is complex, the idea is pretty simple. Solar electricity is generated by a group of solar modules that are installed on your roof or in your yard. When sunlight falls on the solar modules, a DC electrical current is created instantly. The DC electricity is fed into an inverter that changes it to standard AC electricity - the same kind your home already uses.

Solar Power Is Highly Reliable

Solar electricity has been in use for more than 50 years and is proven to be highly dependable. Unlike other methods used to generate electricity, solar doesn't rely on moving parts that can wear out. Our modules come with a 25-year limited warranty on power output, and some systems installed more than 40 years ago are still performing.

Little Maintenance Is Required

Occasionally, a solar panel should be rinsed off with a hose to clear the dust or debris that blocks sunlight and reduces efficiency. That's about all that's required.

Now signed into law, the American Recovery and Reinvestment Act of 2009 provides billions in investments to increase the use of solar energy, promote energy efficiency, improve financing options and remove market barriers.

This legislation provides powerful investments to accelerate the U.S. towards a sustainable energy economy.

Key provisions of this legislation include: This legislation also funds solar and energy efficient upgrades for schools, solar grant alternatives to the investment tax credit, solar manufacturer incentives, and other historic investments.

Service 3

All information on this Web site regarding products, prices, and services provided by JL Advenco and is subject to change without notice. Reasonable efforts are taken to ensure the accuracy and integrity of all information provided here. JL Advenco, nor our suppliers will be held responsible for misprints, out of date information, or errors. All errors are subject to correction. JL Advenco makes no warranty, express or implied, or assumes any legal liability or responsibility for the accuracy or completeness of any information contained on this Web site.
JL Advanced Energy & Construction Ltd Co., Air Conditioning & Heating Contractors - Residential, Carrollton, TX