INTRODUCTION INFORMATION HERE
Do you have overly hot rooms? Insulation is the thermal boundary separating your attic space from your living space. If your house is hot or warm, this could be from lack of insulation. Most older homes only have about 2-6 inches of insulation. This is a very low R-value. The thicker your insulation (thermal boundary) The more R-value you have and the longer it takes for heat to transfer into your home. Proper insulation is one of the most energy efficient solutions for your home.
Do you feel like your ac unit is constantly running, or the air in your vents is coming out warm and weak? Duct sealing can fix that. The reason the air is warm and slow is that its escaping through the holes, splices, kinks, joints and seems throughout your duct systems. You could even have a disconnected duct ( which is very possible).
A lot of contractors, when assembling the duct system are not thinking energy efficiency. They just snap it all together and does not think about how much air, energy and cost is going to be wasted through your duct system. Older homes tend to present more problems. The hard duct systems leak a huge amount of air or could even be falling apart. A lot of times the home owner does not even know these leaks are present.
Duct sealing will seal all the holes, splices, joints and seems. Duct sealing is done with mastic. Mastic is a heavy duty sealing material that seals your system from top to bottom. Duct sealing will ensure all your ac is making it into your home and not escaping into your walls and attic. This will allow your unit to run a lot less and more efficient. Duct sealing will drop the percentage of dust in your home. Dust settles in your attic. when your ac turns on, insulation and dust are sucked into the system. Duct sealing will stop this from happening. Duct sealing will save you money and extend the life of your ac unit. Leaky ducts can reduce heating and cooling system efficiency by as much as 20 %. This will reduce the amount of energy necessary to comfortably heat or cool your home, you can reduce the amount of air pollution generated.
All the Radiant Barrier configurations yielded sizable percent savings (17 percent, based on ENERGY STAR Evaluation) and statistically significant reductions in summer attic heat transfer compared to the non-RB case. Also, as the ambient temperature increases, the savings also increase. The RB on top was the best summer performer. It consistently showed heat flux reductions compared to the non-RB case of about 40 percent for almost all ambient temperatures and even showed savings during mild temperature and night summer conditions. The RB configurations provide statistically significant reductions in winter attic heat fluxes in many, but not all, situations. The percent savings during night hours and during below 35 degree conditions, when heating loads are the highest, are usually sizable (from 6 to 23 percent) and the differences between the RB configurations and the non-RB case are often statistically significant during these conditions.