R-value for construction application
The Right Insulation…..increases building energy efficiency, improves health and well-being and reduces greenhouse gas emissions and provides more than just efficiency for buildings
• Buildings account for over 20% of GHG emissions.
• Energy consumption in buildings is growing faster than most other areas of use.
• Insulation is the most cost effective way of reducing energy consumption and greenhouse gases emissions in the built environment.
• Insulating buildings (new and existing) is the most financially attractive of all energy efficiency and renewable energy measures to reduce greenhouse gas emissions.
• Current insulation production technology is proven and available now. Installing insulation has an immediate impact on energy demand and GHG emissions.
• A response to climate change demands well-insulated new and existing buildings.
• Insulation reduces average home heating and cooling costs by around 30%.
• Insulation reduces the burden of increasing energy prices.
• The cost of installing insulation already pays for itself in around 3-5 years through reduced energy bills, and payback time will improve as energy costs rise.
• The right insulation is a once-only cost that lasts for the life of the building (typically 50 – 70 years) and requires no further maintenance.
• Saved energy is the most sustainable energy. Insulated buildings reduce the need for additional power generation capacity by “smoothing out” the peaks in energy demand.
• Well insulated buildings have reduced need for air-conditioning.
• Insulation improves property values and has been shown to increase the return on rented and leased properties.
• Insulation is not expensive. To insulate the ceilings, walls and floors of a typical house costs less than 1% of the construction cost.
• People spend a great proportion of their lives in buildings. Insulation provides more than energy efficiency. Thermal and acoustic insulation play important roles in improving the quality of life by providing environments that are more comfortable – this leads to greater productivity at work.
• Studies show that well insulated buildings provide a healthier environment by controlling temperature and noise levels.
• By reducing household and business running costs, energy saving from insulation can provide a buffer to other cost of living increases.
• Insulation protects and improves the quality of life of the elderly and socially disadvantaged.
R values for typical applications: MeishuoReflect Foam Insulation are met by maintaining the material R-value of building standards. when it is incorporated into typical construction systems, including Metal Roof unventilated, Metal roof ventilated, Metal roof unventilated, Tile Roof unventilated, Commercial office Roof, Warehouse Shed Roof, Steel Stud Framed Wall, good thermal performance can be achieved.
Installation and environmental conditions play the major role in product contribution towards the total system R-value.
What is R-value?
• R-value means the thermal resistance (m2 K/W) of a material calculated by dividing the thickness by its thermal conductivity. Total R-values are based on the sum of all components of the building system including indoor and outdoor air-films, building materials used in the system and air-spaces.
• Bulk insulation thermal resistance is expressed by Material R-value.
• Reflective insulation thermal resistance is expressed in terms of Total R-value.
n construction, the R-value is the measurement of a material’s capacity to resist heat flow from one side to the other. In simple terms, R-values measure the effectiveness of insulation and a higher number represents more effective insulation.
R-values are additive. For instance if you have a material with an R-value of 12 attached to another material with an R-value of 3, then both materials combined have an R-value of 15.
Total R-values “With” or “Including” insulation and/or air spaces indicate the total thermal resistance achieved when insulation products are correctly installed.
Types of Insulation
1.Single Sided Foils
2.Double Sided Antiglare Foils
3.Vapour Permeable Membranes
4.Bubble/Foam Foils Double sided reflective foils with an inner core material thickness. One side coated with antiglare to reduce glare. Centre core material, typically 7~10mm thick enclosing a single layer of individual air bubbles or closed cell foam. Which is widely used in roof insulation, wall insulation and so on.
5.Ceiling and Wall Batts
6.Foil Faced Blanket
7.Foil Faced Board
8.Antiglare Reflective EPS Board
9.Reflective PIR Board