MOST HOMEOWNERS DON’T REALLY UNDERSTAND HOW IMPORTANT THE INSULATION IS NEEDED TO GIVE YOU COMFORT AND REDUCE THOSE ENERGY BILLS IN YOUR HOME. BELOW IS SOME SIMPLE INFO ON INSULATION.
HOW INSULATION WORKS
You need insulation in your home to provide resistance to heat flow. The more heat flow resistance your insulation provides, the lower your heating and cooling costs.
Heat flows naturally from a warmer to a cooler space. In the winter, this heat flow moves directly from all heated living spaces to adjacent unheated garages, basements, and even to the outdoors. Heat flow can also move indirectly through interior floors, walls and ceilings wherever there is a difference in temperature. During the cooling season, heat flows from the outdoors to the interior of a house.
To maintain comfort, the heat lost in the winter must be replaced by your heating system and the heat gained in the summer must be removed by your cooling system. Properly insulating your home will decrease this heat flow by providing an effective resistance to the flow of heat.
Insulation’s resistance to heat flow is measured or rated in terms of its thermal resistance or R-value.
HERE ARE THE BASIC CATEGORIES OF INSULATION
LOOSE FILL INSULATION
Insulation that is made out of small chunks of fibers. It is also known as blown in insulation because it is blown in with a blower, a giant vacuum cleaner that works in reverse.
With batt insulation, insulative fibers are woven together to create a blanket of material. Batt insulation is available in 16 and 24 inch wide rolls usually in 8 ft. sections to fit standard spacing between the framing members in walls and ceiling joist. A paper or foil moisture barrier is installed on one side of this type of insulation which becomes the backing. The backing always is laid toward the inside of the house.
Insulative fibers that are tightly sandwiched together between 2 layers of foil, creating a solid insulative material that looks a lot like plywood. Rigid Insulation is usually installed in between roof sheathing and roof covering when no attic exists.
Spray Foam Insulation usually works in the most convoluted and irregular areas where normal insulation is hard to reach. Unfortunately this method usually only works if you have an open wall from remodeling or add on.
DIFFERENT INSULATION MATERIAL
Fiberglass Insulation is the most popular and most widely available type of insulation. You can purchase it as either batt style or loose filled. It’s one of the least expensive and the batts are easily installed. Its not flammable and resist water damage.
Fiber glass batt is spun from molten glass and sand into fibers and is an extremely effective insulating material because tiny pockets of air resist the flow of heat and cold.
Fiber glass loose filled insulation is an extremely effective insulating material because its fibers prevent air movement and the resulting heat loss to resist the flow of heat and cold. It is designed for use in attics and hard-to-reach locations such as corners, nooks and crannies. It is installed dry, and because it will not settle over time, maintains its full R-Value over the life of the home.
ROCK AND SLAG WOOL
Rock and Slag wool batt is similar to fiber glass except that it is spun from slag and other rock-like materials instead of molten glass. It is sometimes called mineral wool. Mineral wool insulation was among the earliest commercial insulation types.
Rock wool (or slag wool) loose filled insulation is similar to fiberglass except that it is spun from blast furnace slag (the layer of impurities that forms on the surface of molten metal) and other rock-like materials instead of molten glass. The production of rock wool uses by-products that would otherwise be put in a landfill. Rock Wool insulation is well suited for locations where it is difficult to install other types of insulation, such as irregularly shaped areas, around obstructions (such as plumbing stacks), and in hard-to-reach places. Blown-in loose fill insulation are particularly useful for retrofit situations because, except for the holes that are sometimes drilled for installations, they are one of the few materials that can be installed without disturbing existing finishes. Rock wool is installed dry, and because it will not settle over time, maintains its full R-Value over the life of the home.
Cellulose is made from ground-up newspapers. It is treated with fire retardants, some of which have been known to cause corrosion of wiring and pipes. The product settles significantly over time and must be over-installed to compensate for this settling. All loose-fill insulation are required to detail their installed and settled thickness on the bag label to let consumers know the expected settled R-Value. Cellulose is applied using a mechanical blowing machine. In an attic, cellulose is not typically installed above an R-30 because its weight can cause sagging of the drywall. Most energy codes now call for R-30 to R-60 in attics.
Made from cotton or recycled scrap denim there has been little independent testing done to look at the fire performance and moisture absorption of these products. Similar to cellulose insulation, these materials require the addition of fire retardant chemicals because they are combustible. Some fire retardants used in these products are know to cause corrosion of pipes and wiring.
THE R-VALUE OF INSULATION
R-value indicates an insulation’s resistance to heat flow. The higher the R-value, the greater the insulating effectiveness.
The R-value depends on the type of insulation and includes its material, thickness, and density. When calculating the R-value of a multi layered installation, add the R-values of the individual layers. Installing more insulation in your home increases the R-value and the resistance to heat flow.
The effectiveness of an insulation’s resistance to heat flow also depends on how and where the insulation is installed. For example, insulation that is compressed will not provide its full rated R-value. The overall R-value of a wall or ceiling will be somewhat different from the R-value of the insulation itself because some heat flows around the insulation through the studs and joists. Therefore, it’s important to properly install your insulation to achieve the maximum R-value.
The amount of insulation or R-value you’ll need depends on your climate, type of heating and cooling system, and the section of the house you plan to insulate.
BEFORE REPLACING OR ADDING INSULATION TO YOUR ATTIC YOU SHOULD DETERMINE WHETHER OR NOT YOU HAVE MOISTURE PROBLEMS. PROBLEMS WITH MOISTURE CAN BECOME WORSE WITH ADDING INSULATION. INSULATION CAN TRAP MOISTURE CAUSING MILDEW AND MOLD TO GROW AND SPREAD. IN ADDITION, WHEN WATER AND MOISTURE COLLECT IN THE ATTIC, IT CAN CAUSE STAINS AND ROT. BEFORE PUTTING IN ANY INSULATION, IT IS BEST TO SEAL ALL AIR LEAKS. THIS NOT ONLY HELPS MOISTURE, BUT ALSO REDUCES HEATING BILLS BY KEEPING COLD AIR FROM ENTERING THE HOME. YOU MAY NEED TO CONSIDER A RADIANT BARRIER.
Radiant Barrier is nothing more than a light weight aluminum fabric that blankets the existing attic insulation. Radiant Barriers have hundreds of thousands of tiny holes that allow vapors to pass and prevent condensation from occuring at the ceiling level. These barriers also refelect heat from above during summer time, while at the same time holding on heat during the winter time. You install the barrier as a single sheet. Radiant barriers are not insulation, and by definition, have no R-value. However, there are some radiant barrier products that have entrapped air spaces (bubble pack or multilayer films) where an R-value may be available for the product. Testing has shown that it is more cost effective to add insulation than a radiant barrier.
The main purpose of a roof is to protect the home from the elements. Rainfall is the #1 culprit of water getting underneath the roof structure. Water needs to be shed away from valleys, chimneys, ridges, eaves, rakes, skylights, roof penetrations and roof to wall intersections. Water built up in these particular locations can cause serious damage to the structure in wood rot and not to mention mold which is known to cause respiratory problems. The water usually doesn’t just stop there, it can penetrate down the attic structure, to the ceiling sheet-rock or down a wall and cause even more serious issues.… Read the rest
If you find the constant scheduling of tasks or general chaos in your household is too much to handle, then perhaps investing in a family command center is good idea. There are many versions of a family command center and each one is specifically designed to fit different household and family needs. The best thing about creating a family command center is that it is a great DIY project, so it won’t end up costing a fortune to get your family’s duties back on track.
How to Create a Family Command Center
Materials & Location
The general materials you will need to create a simple family command center are:
- Bulletin/dry erase/chalk board
- Hammer/electric drill
- Measuring tape
- Writing utensils (markers or chalk)
Depending on the complexity of your creativity skills or budget, you can also add decorative measures, such as ribbons, bows or picture frames of each family member, but feel free to be as basic as possible.… Read the rest
With advancements in renewable energy technology, many people are starting to be turned on to its potential. If you’re thinking about going to renewable energy, here are five reasons that you may want to go ahead and make the move to this type of energy.
1. Saving Money
One of the reasons that you may want to make the switch to the renewable energy is to save money. In today’s market, regular forms of energy are getting much more expensive by the day. The way things are going, you may end up paying quite a bit more for electricity from the electric company than you would from a renewable source of energy like solar panels.… Read the rest
I recently performed my routine maintenance on the jacuzzi tub we have in the master bath. I thought I would share some of the tips I’ve picked up during my home inspection career. I’m always seeking to better my knowledge on questions that may come up during one of my home inspections.
All whirlpool bathtubs have a small amount of residual water left in the pipeline. Minerals in water begin a process of calcifying around the insides of your pipes. This hard scale build up not only restricts water flow, but becomes a perfect breading ground for infectious bacteria. As the algae breaks off, you will see it in your bath water as ugly black flecks.… Read the rest
A moisture meter is a device designed to measure the moisture content of various building materials, such as roofing, siding, insulation, drywall, plaster, wood, tile and fiberglass. Structural and safety hazards, such as mold, rot and decay are all potential consequences of elevated moisture levels in these materials. An inspector can use a moisture meter to locate moisture that would not otherwise be apparent.
Here are a few ways that inspectors may find moisture meters useful:
•A moisture meter can be used to determine whether a material is moist enough to allow mold to grow. Mold will begin to accumulate on surfaces that contain approximately 20% moisture, although this value varies based on vapor pressure and other factors.… Read the rest
When people think about blood sucking insects, they first picture a mosquito or tick. Did you know bed bugs are also blood suckers. The tiny, sneaky insects are spreading so rapidly across the United States that almost no region or area is unbitten, a new survey suggests. The United States has seen a 50-fold increase in bed bug infestations over the last five years, according to the National Pest Management Association. An entomologist told MSNBC, “It’s like the return of the wooly mammoth,” as many of his peers had previously never seen a single bed bug in their careers. The outbreak has affected most parts of North America and Europe, especially in urban areas.… Read the rest
Came across this a/c systems evaporator coil today. It’s amazing how lazy some people are. If you pay a professional to do a job, you expect to get a professional job done. The coil was so off level, condensation was standing on the left side of the pan whenever the a/c was running. Here in Texas, that’s most of the year. After years of this happening, the pan finally rusted through and is now leaking into the secondary pan and beyond to the plenum. The plenum is leaking onto the ceiling and wall of the bedroom below. Now we have a huge mess with water damage and mold.… Read the rest
When I decided to become a home inspector, I got into a habit of inspecting things everywhere I went. I honestly cannot help myself anymore, it’s just what I do. Being a father and just loving kids in general, I started noticing things when I would go to playgrounds in the Arlington, Mansfield and Burleson areas with my own kids or with my nieces and nephews that worried me about their safety. I recently pulled some information from the CDC website I thought I would share to remind parents of how important it is to keep you children safe from serious injury.… Read the rest
How many people actually maintain their lawn equipment and store them properly before the winter season hits. In this article, I will show you how to perform some common routine maintenance on your gas powered mowers, weed trimmers and spreaders to insure they will operate properly for next spring.
Fill the gas tank on your mower just enough to complete the last mowing. Afterwards, run the mower until it runs out of gas. If gasoline is left in the tank all winter, it turns stale and collects water droplets from condensation. If to much gas is in the tank to run out, you can drain it or worst case, purchase some fuel stabilizer from your local auto parts store and add the recommended amount to your tank.… Read the rest
Steam room installation inside of your home is a relatively simple task. You have the option of adding steam to a new building, renovating your existing bathroom or building a new piece of property. Regardless of what method you choose to use, the benefits that accompany relaxation are definitely worth it.
If the DIY approach doesn’t do it for you there are plenty of bathroom installers such as Ripples in Dublin who can help you with the task.
Health Benefits Associated with the Installation of a Steam Room
- Through perspiration, your body will eliminate roughly 30 percent of all its toxin stores.