Insulating my granny flat

What insulation to use for granny flats and portable homes - Pricewise blog post

Does my granny flat also need to be insulated? In most cases the answer is yes. How much R-Value which you need in the ceiling and walls will depend on a number of factors, primarily the local climate, and the proximity of any other buildings or trees which may provide shading from direct sunlight especially during the hot summer months.

A minimum of R2.5 ceiling insulation is considered necessary in most climates. This may also be adequate in hotter climates, if the granny flat is situated so that it receives direct shade from nearby trees or buildings for most of the day.

The walls should also be insulated. Consider using a combined thermal and acoustic insulation in the walls – this helps to block out unwanted noise transfer, and can make the granny flat more attractive to a potential tenant. For advice on your granny flat or home renovation insulation, don’t hesitate to contact us.

Best Sellers

  • Knauf Earthwool® Roof Insulation Batts

    $ 4.46$ 12.02 p/m2 inc. GST

2 thoughts on “Insulating my granny flat

  1. Ercelle Smith says:

    I do not have any trees shading my granny flat. I feel it needs insulation as it is FREEZING in winter but HOT in summer. I have been here for 1 year and need to know I will cope better in the future.

    • Pricewise Insulation says:

      Hi Ercelle,

      Thank you for your enquiry. Insulation will definitely improve the temperature inside your granny flat during winter and summer.

      If you want to know which R-value is best for your portable home, well this really depends on where you live. You can read our blog about climate zones here.

      If you would like to further discuss the best options for you please feel free to call us on 1300 729 639.

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