RETROFIT INSULATION
Retrofit insulation talks all about re-insulation of a home or building. New construction insulation is the process of installing insulation during construction of a home or building. Insulating a home or building that is being built is easier and cost-effective, but sometimes retrofit insulation is required in which insulation can change over time. There are chances that it can be installed incorrectly, and if that’s the case, it is important to upgrade later to enjoy the benefits, such as energy savings and more comfortable home all year round.
INTRODUCTION
In the following blog the techniques for retrofitting insulation on outer walls of concrete or masonry, concrete blocks or bricks are clearly described. This will
…show more content…
When possible, external retrofitting insulation is advantageous since it has many technical and structural benefits. Conditions are especially in favor of external retrofit insulation when the external walls require to be repaired or when existing walls becomes irresistible for climate changes such as rain and frost. External retrofit insulation can be placed continuously on the wall surface so that cold bridges at the floor separations and on adjoining inside walls will be eliminated. In this way the existing wall will maintain a higher temperature and will not be endangered to humidity and moisture accumulation. External retrofit insulation also has a significant importance in the sense that it does not both the inhabitants if the building with no damage of internal living …show more content…
Batts are available to fit 16- or 24-inch centers. Mineral wool can be either fiberglass or rockwool. Standard thickness are 3.5, 6, 8, and 9 inches.
• Expanded Polystyrene: In order to avoid later creep, boards should be protected while stored. Expanded polystyrene has an R-value of 4 per inch. In case of flammable insulation usage, see that the local building code allows its use.
4. Wind Barrier:
• Nonflammable Wind Barrier: External retrofit insulation in walls requires a fireproof wind barrier. For the same purpose, however, a special 9mm sheetrock has been designed in Norway.
• Burnable Wind Barrier: An external wind barrier of windproof building cardboard or 12 mm asphalt-impregnated porous wood fiber with wind protective covering can be used in buildings where exterior fireproofing may not be required. New products, such as spun olefin sheeting, are also available.
5. Vapor Barrier:
With interior retrofit insulation, use polyethylene sheeting, a minimum of 6 mils thick, as an internal vapor barrier. The polyethylene must cover the whole wall height and be carefully installed and sealed.
6. Internal Wall
The largest concern I would have would be the effect on other systems in the house. Structurally the whole house would have to be detailed on the plans (EX. Stud placement, second floor and roof placement on the supporting walls). The electrical, entertainment, and communication system would have to be in conduit and would cost considerably more. The HVAC system would also have similar problems because of the conduit runs cut in all the studs a stud cavity could not be used as a vent run without addition ducting in the wall that would not be necessary in wood framing.
The protective packaging industry can be segmented three ways by use: positioning, block, and bracing; flexible wraps; and void fill. Coated (e.g., AirCap) and uncoated air bubble products serve the flexible wrap and void fill markets (refer to Glossary). The flexible wrap market, which dwarfs void fill as measured by annual sales, is of primary concern to Sealed Air and will thus constitute the focus of this report.
The R-factor provides a measurement for insulating properties and characteristics. Normally, a higher number represents higher insulation value. The R-factor is more important when choosing inoperable windows since they are fixed. Operable windows with weather-stripping and sealing mechanisms to prevent air leaks are better evaluated with U-factor ratings.
Studies have shown that big changes in temperature do not affect the capability of insulation. In one experiment, materials were set to a high heat of 300 degrees Celsius. After six months in this environment, the substances were cooled to room temperature. The dielectric constant showing the level of insulation had not changed ("Teflon PTFE fluoropolymer resin" 28).
Taking into account of thermal inertia of green roof components, density and specific heat of the soil and outdoor temperature have more impact on thermal
In the UK, Timber frame construction is based on factory made structural elements. The timber framed wall panels take the loads on the building to the foundations whilst the outer cladding provides embellishment and weather protection. Now depending on what cladding is to be used is totally up to the client/builder/architect as it is a matter of choice; it can be brick, stone or lightweight claddings, such as timber boarding, tile hanging or render.
Most existing homes and other structures are filled with fiberglass insulation that is very inexpensive, so it keeps the initial building costs down. It actually ends up costing the owner more money, because fiberglass rarely stops air leaks efficiently. Additionally, the material has a low R value and absorb moisture so it is prone to unhealthy mold and mildew. Spray foam insulation will stop the air leaks which will save you money on your utility bills. It also has a very high R value of eight for each inch. Fiberglass only has a R value of one for each inch.
...nd suppliers, causing a huge impact on the construction market. Unlike Styrofoam, which can create poisonous gas when heated, X-Aerogel can prevent the building from burning down. Also, other features of Aerogel such as hydrophobicity and shock/soundproof prove that it is less susceptible to damages from natural disasters. In the future where the X-Aerogel is completely commercialized, the market will run with X-Aerogel on the center.
Do you have a home with an attic or crawlspace? Has it been a while since your attic insulation was upgraded or even inspected? If you aren't sure when your insulation was last upgraded, here are some reasons you may want to consider doing so now:
Plus, the brand name, quality materials that are used can help make it last a lifetime and don’t . The top-quality drywall that is used in our homes doesn’t allow much room for air or moisture to seep through
Particularly, in ceilings and cockloft area, rapid fire extension is created by the heavy fire load in the confined and open area. (Christopher J. Naum, 2008) Besides flames being undetectable in these confined spaces, it also traps superheated gases creating a possibility of a flashover in concealed spaces including between the ceiling and floors. Another hazard in Type III buildings that effect firefighting is during roof operation in the darkness, a firefighter can step off the edge of a roof or stumble over a low parapet. (IFSTA, 2016, p. 279) Furthermore, The collapse danger of the parapet wall is one of the reasons why the area directly in front of a fire building is so dangerous, and why firefighters are urged either to move inside the doorway or away from the front of the building altogether. (Christopher J. Naum,
Type V buildings are known as wood frame construction. To break Type V constructions to the basics, they are constructed of lightweight materials to save the contractor money. This type of construction is the most dangerous to firefighter due to the lightweight, cost effective materials used. Some of the wood frame buildings are Log cabins, Post and frame, Balloon Frame, platform frame, plank and beam, and truss frame.
It was invited by Russell G. Slayter in (1932-1933) as a material to be utilized as thermal building insulation.
Sustainable buildings are becoming somewhat of a necessity in the world today. As the demand for green building develops, so does the demand for green building materials. Just as the old techniques and building materials seem to disappear in the assembly of things, they are now making a come back. Green building focuses on the efficiency of major resources like water and energy. As the cost for sustainable materials and products are on the decline, building green seems to be the most cost effective kind of design and construction. Looking specifically at green materials and their impact on the production of structures, it is evident that they are a prime choice for building material. The use of green materials should be promoted because they are better for the environment, more healthful for the consumer, and better for the economy.