Sound Insulation – The Many Methods of Sound Reduction

In simple terms, sound insulation is reducing the sound from the source (sender) getting into a room (the receptor). There are several methods on reducing the sounds coming from these extraneous sound-makers. The receptors include theaters and recording rooms among others.

Some of the methods used include increasing the distance between the sound maker and the receptor, the use of noise barriers (either through reflection or deflection of the sound waves) and the use of damping structures like baffles or the use of anti-noise sound generators.

Also usable are acoustic quieting, noise mitigation, and noise control in limiting noise. Soundproofing can suppress the unwanted indirect sound by reflection that can cause echoes and resonances.

Methods

One way of reducing the transmission of unwanted sound is sound proofing by way of using distance and intervening objects in the sound’s path. The density of the sound decreases as it spreads out. With distance, the intensity of the sound waves becomes less and less.

Damping reduces the resonance of sound in a room by absorption or re-direction. The methods are reflection and diffusion. Absorption reduces the sound level while re-direction makes unwanted sound harmless by reducing its coherence.

During the absorption of sound, parts of the sound energy are converted into heat in the intervening object (the one that absorbs it) rather than the sound is being transmitted or reflected. The absorbing material for sound is determined by the frequency distribution of the noise.

Absorbers

An open cell rubber foam or melamine sponges absorb sound by friction within their cell structures. Throughout the broad range (medium) of frequencies, the porous open cell foams are highly effective sound absorbers.

These cell foams can absorb sound depending on the cell size, porosity, material thickness and material density, including tortuosity. The other sound absorbers include resonant panels.

The reflectors will make the sound hitting them be reflected than if the sound hits a softer medium like fiberglass. (It is used to deflect sound skyward in noisy highways caused by speeding vehicles.)

Transfers

The transfer of sound from a room into the outside happens thought mechanical ways. The vibration passes directly through the brick, woodwork and other solid structural elements. When the sound meets other elements like a wall, ceiling, floor or window (all these can act as sounding boards), the sound is amplified and heard in the second space (the outside).

Mechanical transmissions are faster and more efficient and can be readily amplified than an airborne transmission (sound released on its own) of the same initial strength. Soundproofing with the use of acoustic foam and other absorbent materials is less effective, in this case.

Another method of sound proofing is simply breaking the connection between the room that contains the sound source and the outside space. (It is called acoustic de-coupling.) This eliminates the vibration transfer in solid and in the air.

Sound insulation takes in many forms and the use of some devices. The main purpose is to break the vibrations transfer from one medium to the other (solids to air, air to solids, and solid to solid materials).  

Wall Insulation – Barrier for Heat and Cold

One of the three more important places to insulate your house is the walls. (The others would be the floor and the attic, completing the three dimensions.) When winter comes, the wall insulation will serve to hold the heat inside and make it comfortable.

Like everything else insulated, your walls won’t feel cold to the touch and would certainly keep the warmth inside for you and your family. It also prevents condensation and the following molds from forming later. The point is simply to keep comfort inside the home with the proper insulating of the walls.

Conditions

Generally, the houses that were built before 1972 usually don’t have insulation on their walls. Owners were clueless as to the type of walls they have. (Some are empty and with no insulation whatsoever.)

In summer, the insulating materials of the walls help reduce the amount of heat coming in from the walls. This helps maintain the cool atmosphere inside the house. Those walls that are facing south and west (known as “hot walls) are the ones hit by the sun and make them hot.

The heat they get will be radiated into the house in turn, and it goes on even after sundown. When these walls are insulated, the heat is reduced because the entrance into the insides of the house is reduced.

Insulation

The experts usually suggest that the insulation of the walls should be done when the house is about to be re-painted, doing the stucco again, or when it is about to be coated with texture. The rationale is that many holes are needed to be drilled onto the walls.

The holes will be properly covered during repainting or coating with texture. Also, the insulation of the wall cannot be injected from the attic or from any other part underneath the house. The holds had to be drilled on the face of the walls either from the exterior or the interior.

The work

There will be holes (2 inches each) that will be drilled on each bay and made every 16 inches across. The wall will then be injected with insulation until full and then plugged with Styrofoam. The stucco patching is applied and every patch is floated to match the standard stucco texture.

After the patches dry up in a day, the wall is primed and painted right after. Some owners want to repaint their entire house, while others would only want to color match the paint on each patch.

The drilling can be done on either side of the house (the exterior or the interior). It is best to have the house empty when doing the work from the inside. (Some would decide to do their insulation work from the exterior because of the dust.)

Insulating the exterior walls of the house is generally for thermal insulation to keep the house cooler in summer and warmer in winter. The insulation is keeping a barrier between the insides of the house and that of the outside. This is simply done through wall insulation.

Insulation – Materials for All Types

In a sentence, insulation is the prevention of having heat or sound from being transmitted from one place to the other. There are materials for these that bar one condition (heat or sound) from spreading. With the work and lifestyle today, you want to keep them out from places you want to be comfortable and peaceful.

There are many ways to do this, and mostly with the help of materials we depend on to do the job. Insulators usually use tiny pockets of air in them. The air is one very good insulating materials, and confined pockets of trapped air gives many types of thermal resistance.

Heat and cold

To control heat, the first thing that comes to people’s minds is thermal insulation. This type of insulation is found in house walls, ceilings, and floors. Also, it is usually in the outside of the house where heat is gained or lost.

The main idea is simple to keep one side of the wall warmer than the other. This usually occurs in places where the weather has extreme variations during their times of the year.

Your insulating design needs to follow the climatic pattern. If your place is constantly cold or constantly hot, you need to pattern your design accordingly.

Measurements

The thermal insulation is measured in R-values (R stands for resistance). The higher the R-value, the better the material can provide insulation.

The R value of the material itself is known as Rm, while the total R value of the construction (including all the materials in it—concrete, plasterboards, bricks, etc.) is known as the RT. Those reflective membranes with air spaces added to the system add to the RT, while the reflective material itself does not have any Rm.

Sounds

Insulating materials not only controls heat, it also controls sound. In some degrees, every type of insulating material can do both control of sound and heat.  The acoustic type is usually found in walls, ceilings, and floors.

Specialized sound proofing is done in some special applications like home theaters, recording studios and the like.

There are now acoustic insulating measures for windows, ceilings ands walls. These are for areas where outside sound can be a nuisance (busy roads, airports, train lines, etc.), there are specialized ways in keeping out the sounds from the outside environment.

Double duty

These days, some materials meant for keeping thermal heat inside a house or building from the cold outside, can also prevent sound to seep through inside. The fact is that this ability depends on so many factors.

Pitch and volume of the sound, how your house is constructed, and the general noise level of your area govern the intensity of the unwanted sound. Keeping off the noise is better inside houses between rooms and living spaces.

Materials

Batts (usually made of glasswool or rockwool) are materials with plenty of trapped air inside them will be the insulating material for heat resistance. Others include blown-in cellulose, polyurethane foam, polyester matting and reflective foil.

Actually, most of them offer different insulation properties for you to choose from for your particular needs.

House Insulation – Differences in Insulating Materials

House insulation is a necessity if they are constructed in cold countries or in places where there are extremes in heat and cold climates during the year. With the extremes in climate conditions, people cannot live in their houses in comfort, whether in heat or cold conditions.

However, people are creative enough to fight off these extreme weather conditions by way of insulation. For these houses, the insulation must be in between floors (basements and crawl spaces), between ceilings and unheated attics and inside all the exterior walls of the house.

With less than adequate insulation, the heating (or cooling) energy escapes through the walls, the ceilings and any place where heat can seep in or out. To keep the energy in, and keeping the heating costs down, the house would need to have the proper insulating material to wrap it up.

Insulation

Insulation needs are usually governed by R-values, in the materials and in the projects. The R-value of a material is the heat that passes through. Higher R-value means the insulating qualities of the material is also higher.

Insulation materials are available in blankets, batts and loose-fill. These materials that are usually available to users have their own R-values. However, each of these materials has its own unique qualities different from the others.

They also have different qualities in terms of ease of installation, flammability, and others that are over and above their R-values.

Here are some of the popular ones in use these days and the things to consider when choosing them for your insulating work in your house.

Fiberglass

This is usually the number one choice among the materials these days. They usually come in batts, in rolls and in pellets used in loose fill applications. Some of its advantages are that it is relatively inexpensive, easy to install, and is fire resistant.

It can have a better material for a good vapor barrier and it is available in an unfaced variation. Some of its downsides include the fact that it can be itchy and that it develops an odor when dampened.

Rock wool

This one offers almost identical qualities of fiberglass. It has nearly the same quality ass fiberglass, including its cost and its R-value. It can also be itchy, although it does not develop a smell when dampened.

There is a third new material that has almost the same qualities as these two and it is called earthwool. It is new in the market and people have to test it to check its favorable reviews.

Cellulose

Cellulose is also fire resistant like fiberglass and rockwool. However, its R-value is higher and it does not irritate skin like the two popular materials

It comes in rolls, batts, and loose-fill. It has a fine consistency which permits its being blown-in during installations through small openings or access holes.

Urethane

Urethane is mostly known as a foam-in type of insulation material, but it is very effective when installed properly. It has a very high R-value and it is also fire resistant. For acoustic use, it also has excellent sound-absorbing qualities.

For house insulation, the market has an excellent set of choices.

Insulation Roof – Reflects Back Sun’s Heat

A house has about three areas that need insulation to be able to live comfortably inside. These include the roof, the floors and the walls. Insulation roof is one ideal way to prevent unwanted heat penetration from the outside. Your insulation would include some insulation foil to reduce the sun’s het energy from coming in.

Having an effective insulation material on the roof will also help conserve convective heat inside the house during the winter months to provide warmer atmosphere. Applying the perfect type of insulation helps diminish the energy needed in heating and cooling off the place in appropriate times.  

In turn, it helps reduce your energy bills in whatever seasons you are in.

Types

For the roof, there are two types of insulation materials that fit in. They are the reflective insulation material (against heat in summer) and the bulk insulation materials (blankets, blown-in cellulose, sprayed foam and rigid boards) for winter time.

Most of homes, buildings and other metal structures can unite both of the materials in the form of foil and bulk installations in creating complete insulation systems.

In both instances of hot or cold conditions, the insulation for the roof with reflective insulating materials is enough in getting control from unwanted temperature gain (or loss) as well as moisture penetration.

Reflective insulation

There are two different layers of aluminum foils in reflective insulation materials. The foils are sandwiched with the inner layers of foam, plastic bubble sheet or fiberglass. The structure is perfect for the pole barn insulation of the roof.

It reflects off about 97% of the radiant heat from the roof’s surface. This effectively blocks the heat from penetrating the insides of the structure.

Bulk installation / sprayed foam

Blankets and batts materials that are made up from fiberglass, cotton, sheep’s wool or mineral wool work well against the enlarging and rising flow of warm air. It then traps the heat penetrating inside or outside in their inside structures.

Rigid foam has a little advantage over the blanket insulation simply because it does not compress or absorb the moisture. The insulation characteristic is also higher and has a longer life. The insulation is good in spaces that are confined.

 Sprayed foam (polyurethane) is ideal for use in insulating metal walls and roofs. It seals it from air and moisture leaks. It also controls the condensation well.

Radiant barrier

The best way from insulation in hard summer the outer temperatures is getting reflective insulation materials for the roof. The higher tendency is to reflect the sun’s radiant energy well.

Using aluminum has a good part in reflecting the sun’s heat energy while cutting cooling costs. The condition is that it reflects back into the atmosphere

The use of aluminum plays a part in reflecting the sun’s energy while cutting cooling costs. It reflects back into the atmosphere the radiant energy instead of heating up the attic. The result is increased indoor comfort and less energy cost consumption.

With insulation roof using radiant heat barrier materials, the inflow of heat is effectively blocked at the roof surface and prevents it from entering the house.

Insulation Materials – What is Best for your Use

In colder countries of the world, people have discovered several ways to be comfortable in their homes using materials to heat them up. They have discovered the many insulation materials after so many years. Some are man-made, some are natural and some are hybrids. People chose what fits their needs.

The materials are as different as they all are from one another. The only likeness is that they all work the same way – preventing heat from moving around places, outside or inside, and keep things where they are needed. In houses and buildings, heat is conserved during winter, and is driven out during summer.

Insulators

Today, there are foam boards that are rigid and trap the air in controlling heat flow within a place. Reflective foils deflect radiant sun’s heat (resulting from the direct rays) to cool the living spaces.

Aside from these, there are several other materials that are very good in managing heart and cold in residences and buildings. (The not so popular insulation materials include vermiculite, phenolic foam, perlite and cementitious.)

The following popular materials (not in the order of consumer preference) have their own unique characteristics chosen by home owners and contractors. Their choices are all dictated by the present needs of the project, price, and some compromises.

Fiberglass

This is one the main favorites in insulation materials in that it delivers and that it is readily available. It is made from recycle glass and made into fibers used in blankets (batts and rolls) and as loose-fill. They are also used as rigid boards and duct insulation.

The loose fill are used with insulation-blowing machines (for attics and closed cavity applications). They are also used in blown-in blanket systems.

Mineral Wool

This other favorite has two types – rock wool and (man-made from natural minerals) and slag wool (made from by-products in blast furnaces). Both of these are 75% recycled. Also, they are fire-resistant.

These are usually made into batts and rolls as well as loose-fill insulation materials.

Cellulose

Basically, the materials are made from recycled newsprint paper. During the recycling proves, the makers usually put in borate, sometimes with ammonium sulfate, to make it fire and insect-resistant.

This material is usually the choice in new homes and in attic installations as loose-fill. The dense-packed filling is used in stuffing up cavities in walls and ceilings.

Plastic Fiber

Made from recycled plastic (PET) bottles, they are used as batt installation like the high-density fiberglass. It is treated with a fire retardant, although it melts when exposed to flame.

Compared to fiberglass, it is non-irritating to work with. As batts, they are slightly difficult to work, however.

Cotton

This insulation material is actually made of 85% recycled cotton and 15% plastic fibers treated with borate. (Some use the trimmed wastes from recycle blue jeans.)

It uses minimal energy to make because it is recycled. It is also non-toxic (it’s a natural fiber) and is available as batts.

Sheep’s Wool

These days, more materials are coming up to be manufactured into insulation materials. Some turn out to be good and some are failed experiments and discontinued. 

Roof Insulation - Summer Concerns

The roof is one of the three most important places in the house that needs insulation alongside the floors and the walls. Roof insulation is needed to prevent one of the important parts of the house from being penetrated by unwanted heat (and cold).

One of the materials used is the insulation foil which prevents the outside heat from getting inside the building or house. The foil reduces the amount of heat coming from the sun. The insulation gives better thermal protection in the opposite cold situation in winter.

Heat convection

The roof’s insulation materials will help move the convection of the heat energy within the house in winter to create a warm atmosphere. Applying the perfect type or the fitting type of insulation helps reduce the energy needed in the heating and cooling inside a building or house. In turn, it reduces energy costs.

The insulating material for the roof decreases the chance of thermal and moisture condensation. If the moisture condenses, problems like molds and mildew as well as rotting and dripping will be bigger problems.

With ventilation, the insulation under the roof’s surface helps the escape of moisture. This stops the ice buildup and the damage it can cause.

Types

The bulk and the reflective insulation materials are the two types fit for insulating the roof. Both can be in blanket forms, in foam that are sprayed, blown-in cellulose and in the rigid boards.

Some unite these materials in protecting their homes or building. They come in foil and bulk insulation in devising an insulation system. Both work differently. The foil does the reflective task and the bulk materials working to absorb and keep the heat off.

Reflective and bulk insulation

The reflective insulation materials are made of two different layers of aluminum foils sandwiched with the inner layer of foam, plastic bubble sheet or fiberglass. This structure is perfect for the pole barn insulation for the roof.

The material reflects about 97% of the radiant heat from the roof’s surface. This prevents energy and higher temperature penetrating inside the structure.

Roof bulk installation

Fiberglass, cotton, sheep’s wool, and mineral wool are some of the materials used for blankets and batts. They work well against the rising flow of warm air. Consequently, it traps the heat penetrating inside or outside.

The rigid foam has a little advantage over the blanket insulation because it does not compress or absorb the moisture. It also has a higher insulation characteristic with longer life, and is good for insulation with space that is confined.

In insulating metal walls and roofs to seal them from air and moisture leaks, the sprayed foam fits perfectly.

Radiant barrier

In summer, getting reflective insulation for the roof is perfect for reflecting off the outer temperatures. Using aluminum is good for reflecting back the sun’s energy and cutting costs in the process.

The best way in roof insulation during the hard summer is getting reflective insulation materials to prevent the outer temperature getting in. The result is increased indoor comfort and less energy consumption.

Acoustic Insulation - Some Details

Acoustic insulation (another term for sound proofing) is the method of reducing sound pressure with respect to a specific sound source and receiver. There are several ways in doing this. Some use noise barriers to reflect or absorb the energy of the sound waves. Others use damping structures (sound baffles) and still others use anti-noise generators.

The system is called by many names (noise control, acoustic quieting, noise mitigation, etc.) but the whole aim is to limit unwanted noise. Each of these methods can suppress indirect sound waves by transforming them into reflections that cause echoes and resonances that cause reverberations.

There are about four other forms of sound suppressants.

Distance

This is a natural phenomenon. When sound waves spread out, the energy density decreases. With the increase of distance between the sound source and the recipient, sound diminishes or the intensity is reduced.   

In a normal setting, this would include a point source and point receptor. The intensity of the sound waves will be dependent on the distance between the two. This is according to their inverse square of the distance from the source.

Damping

Technically, this is the term used in reducing the resonance of sound in a room by way of absorption or redirection (reflection or diffusion). The absorption will lower the resonance of the sound in a room while the redirection makes unwanted sound harmless by reducing its coherence.

Damping reduces the acoustic insulation resonance in the air or mechanical resonance in the structure of the room itself, or by the things inside the room. (Cork walls, thick carpets and curtains can reduce the resonance of sound in a room, though not actually eliminate it because sound mainly travels by air.)

Absorption

When sound is absorbed by an object, there is a small conversion of a part of the sound energy into a small amount of heat in the intervening or absorbing material. This reduces the sound intensity as it is being transmitted.

There are some ways where a material can absorb sound. This sound absorbing material will be determined by the frequency distribution of noise to be absorbed and the acoustic absorption profile needed.

Porous absorbers

Basically, these absorbers are open cell rubber foams or melamine sponges that can absorb noise friction within the cell structure. The use of dense materials typically used for insulation absorbs the frequencies of the sound due to the porous nature of the material and less likely to be reflected.

The absorption profile of porous open cell foam is determined by many factors. These would include the cell size, the porosity of the material, tortuosity, material thickness and material density.

Sound transfer

The vibrations or sound transfers from one room to another happen through mechanical means. The vibration passes through bricks, wood, and all the solid structural elements. When it meets another element like the wall, ceiling, floor or window, all will act as a sounding board.

Acoustic insulation (with the use of foams, and other sound absorbent materials) is a concrete show on how sound is stopped by a mechanical device.

Home Insulation - Home Styles, Heat, and Insulation Materials

By its name, home insulation says it all – insulating your house from extreme cold or extreme heat. If you haven’t yet, insulating your home is simply to make your house warmer and comfortable. Insulating it is better than having heaters in winter (or air conditioners) to beat cold or heat.

Insulating your home may take some substantial expense. However, it is a one-time expense as compared to your heating expenses which you have to pay every year, year in and year out. With the insulation expense you made, you van be sure that it will pay for itself based on your yearly heating expense.

Different makes

These days, new homes are already built with good insulation standards compared to the old ones. (These may be houses built more than 20 years ago.) New owners of these old houses are retro-fitting them to improve their insulation quotient and improve their energy efficiency.

The new houses are insulated very well. Most are also done air-tight so they need not have a heating system. These days, the sun’s energy (coming from the windows) is being utilized to heat the homes with a bit of help from electrical equipments (whose costs are very minimal).

Heat transfer

Many people are still under the impression that heart goes up, and nowhere else. In the convection process, heat goes up. In reality, heat goes in all ways (five to be exact) that heat can move about or is transferred.

Conduction is the name of the heat transfer between solids. The heat you can feel if you are near a hot object is radiation.  This is an electromagnetic form of energy transfer like light, electricity or radio.

Convection

Convection is the movement of warm air (or other gases and water) to move up, while those that are cold (cold air or water) go down. The result is circulation of either air or water. This is the heating technique they use in heating radiators.

Evaporation is not usually connected with heat loss. However, you can see the water evaporating on a summer day after a heavy rain. If you perspire, and the air takes up some evaporated sweat from you, you feel cooler.

Draughts are also one way of losing heat, with the warm air from within the home is let out into the outside.

Materials

There are now many good materials to use as home insulators. They include the mineral and glass wools, and on a denser form as batts and slabs. These come in blankets and rolls. They have about 25% greater insulation index compared to the others.

Fortunately, there are now many good products for use as your home insulators. They include the common mineral and glass wools, and on a denser forms as batts or slabs. (They come in blankets forms or rolls.) Because of higher density, they have around 25% greater insulation.

Among the natural fibers, sheep’s wool is a good one, like cotton or hemp. Mineral and glass wools are also very good. All of these materials can make good home insulation. 

Wall Insulation - Some Practical Ideas

The walls of your house are one of the three most important parts (the others are the attic and the floor) that need insulation. During winter time, the wall insulation of your house will serve as hold to the heat and prevent warmth from escaping.

When insulated, your walls won’t feel ice-cold. Likewise, it will prevent condensation and the subsequent molds from forming. The main point is certainly the comfort of a home with the proper insulation of the walls.

Conditions

Homes that were built before 1972 usually do not have insulation in their walls. Some owners are not even aware their walls are empty and with no insulation.

During summer, the insulation of the walls will reduce the amount of heat coming in from the walls which helps maintain the coolness of your house. Most often referred to as the “hot walls”, the walls facing south and west are hit by the sun and heat them up.

When radiated by the sun, the heat radiates the house in turn, even after sundown. When these walls are insulated, the entrance of the heat into the insides of the house is dramatically reduced.

Insulating walls

Professionals and experts usually suggest that insulation of the walls should be done when the house is about to be re-painted, doing the stucco again, or when it is about to be coated with texture. The main reason is the many holes needed to be drilled on the walls.

The insulation for the wall cannot be injected from the attic area or from any part underneath the house. There is need to drill holes on the face of the walls, either from the exterior or interior areas.   

The process

Holes (2-inches each) are drilled in each bay, and made every 16 inches across. The walls are then injected with insulation until full and then plugged with Styrofoam. The stucco patching is applied and each patch is floated to match the standard stucco texture.

The patches dry up in a day and is then primed and painted right after. Some house owners want to repaint the entire home, others want only to color match the paint and paint each patch.

The drilling is from either the interior or the exterior of the house. When deciding to do the work from the inside, it is best that the house is empty and prepared for exposure to dust. (Most would choose to do the insulation work from the exterior because of the dust.)

Uses

Insulating the exterior walls of the house is generally for thermal purposes which is to keep the house cooler in summer and warmer in winter. The main idea is keeping a thermal barrier between the inside of your house and the outside environment.

Insulating the walls between bedrooms or other rooms of the house, it is usually to sound proof or reduce the noise between rooms. It would be redundant to insulate rooms for thermal purposes when the whole house is already insulated. Wall insulation, however, can be done in most rooms of the house.

Earthwool - Exciting New Insulation Material

It is always exciting if a new product enters into a field with a formidable reputation preceding it. From Knauf Insulation, the new entry is earthwool, a new mineral brand of wool insulation. As per reports, it carries with it some improvements over the older mineral wool insulation materials due to its feel, easy handling and the minimal environmental impact.

Also, reports have it that the new product is designed mainly for thermal and acoustical applications. This carries air conditioning ducts, power and process environment, boiler stack installations, metal and masonry walls. Not to be left out are the wall and roof panel systems, curtain web assemblies and cavity wells. 

Features

Concluding several projects, the new material shows excellent thermal efficiency that can lower operating costs. It is lightweight, easy to handle and fabricate. Labor costs are also reduced due to its easy installation.

The emission is low in consideration to indoor air. Regarding acoustics, its excellent properties effectively reduce noise. The facings can also provide a good-looking finished appearance. More important, however, is its capacity as a vapor retardant.

Recycled materials

The new mineral wool is made from recycled glass bottles and is compression-packed to reduce transport emissions. It is also formaldehyde-free because the base is on rapidly-renewable materials instead of other chemicals that are petrol-based.

The resulting material is 70% less energy intensive. It also has no artificial colors or bleach and is comparable to the older glasswool insulation. The design is primarily geared for thermal and acoustical insulation.

It is best for heating the air conditioning ducts, metal walls, masonry walls, power and process equipments, and stack installations. The installations include boilers, as well as walls, roof and wall panel systems, and cavity walls.

Conservation

It is known to be carbon negative, which means that the insulation product recover the energy that it took to produce them in just a few days.

The material also contains sand, one of the world’s most abundant resources with a minimum of 50% recycle content. It reduced its Global Warming Potential (GWP) by around 4% of its carbon footprint.

It has no phenol, formaldehyde, acrylics or artificial colors. As certified by the UL environment for indoor air quality, the product is a low-emitter.

Advantages

The main advantages of the new product is that it is thermally efficient while at the same time is cost-effective. It is not combustible and can reduce unwanted noise from outside sources. It also can limit sound transmission from room to room.

It has a wide range of sizes and R-values and are available for use in wall and ceiling batts. The main advantage of earthwool is its being thermally efficient while being cost-effective in the overall expenses for energy.

Aside from being non-combustible, it can also reduce unwanted noise from outside the house (or building) and can limit the transmission of sound from one place to another.

If there is a need for vapor retarders, the penetration and facing damage shall be repaired with tapes or mastic. Earthwool as the new mineral wool looks like it is here to stay.