Insulation Perth keeps your home warm in the winter and cool in the summer. It reduces energy costs and smoothes out peaks in your energy consumption by providing an effective resistance to heat flow.
Bulk insulation materials resist conductive and convective flow of heat through building walls and roofs. They do this by trapping air pockets in their fibers, or in the spaces inside foam or plastic bubbles.
Fiberglass insulation is a popular choice for home use. It’s relatively inexpensive, offers energy efficiency, helps prevent drafts and noise, and promotes fire safety. Known as a thermal barrier, fiberglass insulation creates a network of air pockets that help block heat from coming in or going out. As such, the material provides effective insulation against heat flow through walls and attics, making it a popular option for home renovations.
Made from plastic reinforced with tiny glass fibers, fiberglass insulation is manufactured when molten glass is spun into fibers and coated with a liquid binder. After spinning, the glass fibers cool and form a tangled mass. This is what gives fiberglass its spongy feel. Depending on the manufacturer, these mass of cooling glass fibers can be shaped into different sizes to accommodate specific insulating needs.
Most fiberglass insulation is sold in blanket form, called batts, and is usually stapled into place. It’s also available in rolls and as a blown-in material that can be distributed in attic, wall, and floor cavities. The latter method typically requires professional equipment and technical knowledge.
It’s important to note that fiberglass insulation is susceptible to mold growth, especially in wet conditions. However, this is usually a minor issue as long as the appropriate precautions are taken. If the issue becomes severe, it’s best to consult with a professional insulation crew.
Before installing fiberglass insulation, it’s recommended to seal any cracks and gaps in the building envelope. Doing so will enhance the effectiveness of the insulation and ensure a tighter seal, which can reduce your utility bills significantly in the long run.
In addition to sealing any existing leaks, it’s crucial that you measure and double-check your measurements before cutting any fiberglass insulation to minimize waste. It’s also recommended to wear proper protective gear when handling fiberglass, including gloves, a dust mask, and safety glasses to avoid breathing in the material’s fine particles. Finally, always follow the manufacturer’s instructions and safety precautions when attempting to install your own fiberglass insulation. Otherwise, a professional insulation crew will provide the necessary expertise for a safe and efficient installation.
Mineral Wool
Mineral wool is similar to fiberglass insulation, but it’s made from rock instead of glass. It’s heated and spun like cotton candy to create fibers that are put into batts or boards for installation in homes. It’s available as a blanket or sheathing for walls, floors, ceilings, and roofs.
It’s often used in commercial buildings, but it’s also an excellent choice for residential walls. It offers excellent thermal insulation and good acoustical control, plus it’s fireproof. It’s also a sustainable option because it uses recycled materials and has a low carbon footprint.
Unlike fiberglass, which is blown into place, mineral wool insulation comes in large sheets that are cut to size for installation. It’s a quick and easy DIY project for homeowners. It can even be inserted into existing walls with the drywall removed, as long as the electrical boxes and outlets are rerouted to avoid the insulation. It can also be used to add insulation around heat and air ducts. The only caution is that mineral wool is vapor permeable and should be covered with a smart vapor control sheet, so the wall doesn’t trap moisture and lead to mold problems.
As with most insulation, mineral wool is a natural material that performs well in varying climates and conditions. It’s also environmentally friendly, made from 85% recycled slag from the steel industry and 15% raw basalt, which is a non-toxic rock. It’s also safe for indoor use and is backed up by EPA testing, which shows that it’s free of harmful chemicals and allergens.
In addition to its superior thermal performance, mineral wool insulation is also a very effective sound barrier. It’s also non-combustible and won’t conduct heat, so it can be used to sheath building supports and girders and to make partition walls and fire-resistant doors. It’s commonly rated Euro Class A in terms of fire safety.
Both rock wool and glass wool are a great choice for energy-efficient insulation in new construction or to upgrade existing homes. But it’s important to choose a product that meets your specific needs, as there are many differences between the two types of insulation.
Cellulose
Cellulose insulation is primarily made from recycled paper fibers and treated with fire retardants. It has the highest percentage of recycled materials compared to any other insulation product, and it takes less energy to produce than fiberglass batts. During installation, cellulose is either blown-in or applied to wall and floor joists and trusses using special machines that can vacuum up excess material and salvage it for future use, which greatly reduces the waste stream. It also requires less energy to install, which is a plus for your home and the environment.
When installed properly, cellulose can help your home stay more comfortable year-round. It keeps your home warm in the winter and cool in the summer by reducing air leaks and preventing outside temperatures from fluctuating within your walls and attic. Its ability to fill in crevices and gaps between joists and wall studs results in better air sealing, which can reduce your heating and cooling costs.
Its hygroscopic properties allow it to absorb and wick moisture away from areas of higher concentration, which helps prevent the accumulation of damaging levels of moisture. This is important because it can corrode metal fasteners, plumbing pipes and electrical wires, which could lead to costly repairs down the road. When wet, cellulose can also lose its R-value and become prone to mold and mildew growth.
Like fiberglass, cellulose is available in batt and loose-fill form. In the former, it’s pre-cut into standardized sizes that installers place between floor and wall joists, trusses and wall studs. It’s not as effective at insulating walls, however, as it often leaves gaps between drywall and framing members. It can be a good option for new homes, but it’s not as suited to retrofitting older structures.
It takes less energy to produce than fiberglass batts, and it has a lower embodied energy. It’s also produced locally, which cuts down on shipping distances and resulting fuel emissions. As a result, it has one of the lowest environmental impact ratings of all insulation products during production and installation. Unlike spray foam, which uses blowing agents that emit harmful chemicals, cellulose doesn’t have this drawback.
Spray Foam
When it comes to preventing heat loss in the winter and cooling your home in the summer, spray foam is tough to beat. The reason that this type of insulation is so effective is that it resists the flow of heat through a structure by both conduction and convection. Its ability to prevent air flow allows your HVAC system to operate at a more efficient level, which in turn lowers your energy bills.
In addition, closed-cell spray foam can be a great choice for those worried about their environmental impact. This type of spray insulation uses a blowing agent known as HFO (which is made from non-toxic hydrofluorocarbons), which has a significantly lower global warming potential than carbon dioxide, which has a GWP of 1.
Closed-cell spray foam offers an R-Value of 6.5 per inch, which is higher than fiberglass and cellulose. It also doesn’t allow water through, which is a big benefit for those living in flood zones.
The downside of closed-cell spray foam is that it can be a bit more expensive than other types of insulation, and there is a risk that shoddy installation could lead to structural damage. This has led some mortgage companies to refuse homeowners who have this type of insulation, or require that they obtain a specialist survey before they can lend money to them.
Open-cell spray foam, on the other hand, isn’t as expensive as closed-cell and can be a good option for those looking to save money. Its vapor barrier properties allow it to be used in locations that have high moisture or vapor drive, and it can help prevent rot and mold.
Spray foam insulation contractors use personal protective equipment when installing this type of insulation, including eye protection, respirators, masks and disposable coveralls. They also use specialized pumps and spray guns to apply the insulation, which creates the expanding foam.
Spray foam is a versatile product that can be applied in a variety of ways, but it’s important to consult with an experienced insulation contractor to ensure that you’re getting the best value for your money and that the installation is done properly. The right insulation can make all the difference in your home’s comfort, efficiency and overall health.