Africa Energy Indaba

Insulation

Regulating heat loss/gain more efficiently

Insulating buildings like residential houses, buildings, factories, and offices is the most financially attractive of all energy efficiency and renewable energy measures to reduce greenhouse gas emissions. Insulated buildings reduce the need for additional power generation capacity by “smoothing out” the peaks in energy demand.

Insulation

A poorly insulated building will result in room temperature inconsistency which requires vast amounts of energy to maintain a consistent ambient temperature all year round. Building insulation includes both ceiling and wall applications plus insulation to equipment. Insulation effectiveness is rated by its R-value which is a measure of thermal resistance within a building. Thermal resistance is a heat property and a measure of a temperature difference by which an object or material resists a heat flow (heat per time unit or thermal resistance). The greater the R-value, the better performance from the product in retaining heat in winter and expelling heat in summer.

A well-insulated building can go a long way in improving the thermal comfort for its guests and staff by regulating heat loss or gain more efficiently. The majority of heat loss takes place through the roof. A well-insulated building reduces reliance on the use of artificial heating and cooling systems, making the hospitality environment healthier, cheaper and more eco-friendly for guests. There are various products available, some of which offer additional sound and fire insulation. Insulating your building is a great way of reducing the burden of future increases in energy costs. There are various insulation products and applications available to suite the type and design of the roof and walls of your building.

The four main forms of insulation include:

  1. Pre-cut Batts or Insulation Blankets: there is a wide range available which are typically supplied in roll form and then cut to size.
  2. Lose Fill Insulation: this is pumped or spread over the roof area to take the form of roof cavities or spaces.
  3. Rigid Insulation: is supplied in pre-cut boards which are placed next to one another over the roof area.
  4. Reflective Foil Insulation has an aluminium surface which reflects and retards heat transmission. This is system is more effective in summer than winter.

Useful Information

Insulation Requirements

Insulation requirements depend on the design of your building, solar orientation, climate and budget. Its best to get a qualified insulator in to advise on the right type of insulation.

Energy Savings - Walls & Celing Insulation

Insulation reduces building energy use, which in turn reduces the- burning of fossil fuels to produce energy. The result is lower greenhouse gas emissions.

Energy Savings - Ceiling Insulation

Ceiling insulation alone can decrease annual energy costs for heating and cooling by up to one third.

Payback Period

Approximately 4 years depending on what type of insulation is installed.

Improve Your Employees Productivity

Insulation improves productivity by creating a more comfortable working environment for your staff as the ambient temperature is more stable & easier to monitor.

System Life Span & Performance

The right insulation is a once-only cost that lasts for the life of the building (typically 50 – 70 years) and should require no further maintenance.

Climate Effects R-Values

Ideal R-values will differ from one climatic region to the next.

Load Bearing Capablities Of Insulated Ceilings

Insulation increases the load bearing to existing building ceilings. Care must be taken to ensure the existing structure can accommodate the added weight.

Pre-approved Installation Companies (Required)

Critical to maximum performance of products is the quality of installation. Suppliers of thermal insulation products generally prefer that their own qualified fitters do the installation to ensure correct procedure and product guarantee. There must be no gaps!

Rodent/Pest Free Insulation

Ensure that your chosen insulation material does not attract rodents and pests.

Reduction In Condensation Forming

Insulation reduces condensation forming, where warm, moist air from exhaust fans rises and meets a cold surface.

Effects Of Moisture On Insulation

Make sure that your chosen insulation does not deteriorate or degenerate when it comes into contact with moisture and poses no health risks.

Noise Reduction

In the hospitality environment, insulation plays a critical role in sound reduction, ensuring a peaceful stay for guests.

Effects On Property Value

Insulation improves the underlying property value.

Alternative Methods Of Insulating

Insulation also includes blinds, curtains and carpets and flooring.

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