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STRUCTURAL INSULATED PANELS (SIP'S)

 

Structures built with Structural Insulated Panels perform above and beyond traditionally built buildings in numerous ways:

 

  • SIP structures are significantly more energy-efficient than stick-built/fibreglass insulation structures.

  • SIP buildings are stronger than stick-built structures. Exhaustive laboratory testing has found them to be superior in both sheer resistance and tensile strength. Worldwide, SIP buildings are frequently found to be the only structures left standing after natural disaster events such as earthquakes, hurricanes, and tornadoes.

  • SIP homes and buildings are significantly quieter than traditionally built structures. Studies have shown that a quieter home or office is a healthier place to be.

  • SIP structures have reduced air infiltration. When ventilated properly, a SIP structure has superior indoor air quality when compared with traditional building methods.

  • SIP buildings can be erected significantly faster. No other structural framing or insulating is necessary.

  • SIP installation produces significantly less job-site waste than traditional building materials. Of the small amount of waste that is produced, most can be recycled.

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BLOWER DOOR TESTING

 

A blower door is a machine used to measure the airtightness of buildings.

 

The reasons for establishing airtightness are to reduce energy consumption, avoid moisture condensation issues, prevent uncomfortable draughts leaking in from outside, and to determine how much mechanical ventilation might be needed to provide acceptable indoor air quality.

The testing procedure consists of a pressure gauge to measure the pressure differences inside and outside the home, and an airflow manometer and hoses for measuring airflow.

 

  • Costs start at: $1,200 + GST  

  • Timeframe: 2-3 hours onsite + travel time (if the target air leakage rate is achieved)

 

If air leakage is discovered, additional time is required to identify air leakage paths and then retest if the targeted rate was not achieved at the outset and after the leaks have been addressed.

 

Please note: Although blower door tests can be carried out at any time, this type of testing is usually done during construction, so that any leaks that are discovered can be resolved before the completion of the build.

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ENERGY MODELLING

 

Energy modelling is a virtual assessment of the way energy is used in a building.  It focuses on energy consumption, utility bills and life cycle costs of various energy-related items such as heating, air conditioning, lights and hot water.

Green Abode use energy modelling to predict annual energy consumption and bills, the size of the heating/cooling system required, and whether more shading will improve summer comfort. 

 

Modelling also helps our clients compare and contrast different efficiency specifications and to determine lifecycle payback on various options.

 

Having this information before your house is built will give the confidence to invest in energy efficiency and comfort and will help to save you money in the long run.

 

  • Cost: $3,000 + GST

Did you know that building green can work out to be a very sound financial investment! In addition to the obvious long-term cost-savings with both energy modelling and blower door testing, building a new home with SIPs has a host of cost benefits. 

 

When you factor in labour, waste hauling, and energy savings, SIP structures are comparable in price to traditionally built homes. However, energy-efficient SIP homes generally have higher market values, and often qualify for energy-efficient mortgages. 

 

  • SIP structures are pre-insulated, which means there is absolutely no need to pay for additional insulation.

  • SIP buildings are prefabricated and precut when delivered to the job-site, which means you save 20-30% on framing labour. 

  • Electrical work is completed 20-30% faster. 

  • Job-site waste is minimal due to precut panels (resulting in around 30% less waste being sent to landfills). 

  • A tighter house means smaller HVAC systems (generating up to a 40% energy saving).

  • Predictable and perfectly straight engineered panels mean homes are plumb and square, which results in faster installs for finish work (doors, windows, floors, and millwork).

  • House is weathertight and dried in quickly, which means sub-trades can get to work much sooner and you can expect fewer delays due to wasted 'crew' days.

  •  There is no need for roof venting (even for low sloped roofing).

  • Better indoor air quality, smaller or no air purification systems required in most climates.

  • Buildings/homes are finished faster, which means you pay less interest. 

For more information and technical detail about SIP's, please visit:

All information current as at 2020. Copyright Green Abode Limited. All rights reserved.