Book Assessment

Home Energy Efficiency and Sustainability​ Assessors

Accredited with NatHERS and DELWP

SuperSeal Report

Heat transfer occurs when there is temperature difference between inside of the house and outside, through walls, ceilings and even floors. Openings in the building shell (like doors or windows) transfer heat at higher rate than walls do. We can slow the heat transfer by adding insulation or shading or replacing the openings with more efficient ones. Slowing the heat transfer is important because it links directly to the cost of keeping the house temperature at comfortable level. If the house is quickly getting cold in winter or hot in summer, it requires heater or air conditioner to run at higher temperature and/or for longer time, which means using more energy and therefore higher energy expense.


In addition to those large heat transfers, there may be tens of small heat transfers (leaks) due to imperfections in building shell sealing, insufficient insulation or other issues. Some examples of such leaks are displaced or missing insulation, door and window gaps, vents, exhaust fans, chimney stacks, and more. In addition to leaks due to heat transfer, a house may also “leak” power – through standby power or inefficient use of appliances. Those leaks, while small, can add up to a significant amount of energy being wasted and are relatively easy to fix.


Draught Proofing House

SuperSeal is now included in Scorecard report and it is a list of all leaks we could find and an easy way to fix them. You can use the list to do it yourself in your own time or get someone to do it for you. Where applicable we can provide subsidised or free installation.  

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