Insulation

 

As the Tassie winter nights continue and we spend the evenings huddled up in front of the wood heater it has become apparent how cold this house is and how desperate for insulation it is. Lets see the positives right now:

  • It has some fibreglass batts in the ceiling but not very well fitting
  • Wood heater in living room
  • Floorboards in good condition and tight

Now the negatives:

  • Weatherboard external walls and plaster & lath internals with no sisilation (builders paper) and no insulation
  • No under floor insulation or access
  • High ceilings
  • Only vertical blinds on the windows
  • No pelmets
  • Ill fitting doors
  • No airlocks on front or back doors

Hmmm it is easy to see that insulation is a must. Well we had started when we had the roof replaced and we had a thermal blanket fitted.

Thermal Blanket from inside roof

Thermal Blanket from inside roof

This made an immediate difference which we could feel in the mornings as we came into the house from our motorhome out in the back yard.

A great explanation of insulation and why it works and what R values are etc can be found at the Higgins website

We made the descision to renovate one room at a time and that would include removing the plaster & lath on the external walls of that room and put in sisilation and insulation. We would start with the South East bedroom (Bedroom 2 in the original floor plan).

Now to types of insulation. Well pretty hard to pump in loose insulation with no guarantee that it would fill all the gaps so it would have to be some kind of batts. Here is what is available:

  • Fibreglass batts.  Available in Tasmania. most common and cheapest and scratchiest and who knows if all those fibres are good for you down the track.
  • Polyester Batts. Available in Tasmania. Much more expensive, non-allergenic, can have a very high recycled content.
  • Wool. Available in Tasmania. Normally mixed with approx 20% polyester so that it keeps its loft and does not compress. Naturally fire retardant and same price as polyester
  • Earthwool.  is made using recycled glass and with ECOSE® Technology, it does not contain added formaldehyde or artificial colours or dyes, the brown colour is completely natural.
  • Aircell. Available in Tasmania. Like bubblewrap with a silver coating on both sides. Very efficient.

For us fibreglass batts were out. Very itchy and not pleasant to fit. The recycled ecobatt sounded fantastic but not available in Tasmania yet. so we decide to go for the wool batts. These were available from a company called Thermowool based in Hobart but could be bought over the counter for the same price at WEDDS, 20 George Street, Launceston, 7250. Telephone 03 6331 9191.The wool batts are 70% wool & 30% polyester and are made in Victoria.

plaster & laths removed

plaster & laths removed

sisilation & wool batts

sisilation & wool batts

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2 thoughts on “Insulation

  1. Hi guys, I’m following your blog with interest – I’m in the process of planning an 8 x 8.5m ‘shed’ to use as an office, rumpus room etc and I want to build this to house specification where possible as I intend to spend a LOT of time in it. I live up on the NE coast of Tas and am concerned about insulation – so this entry of yours has been a godsend. Since I’m building, not renovating would you recommend wool or the pump in insulation that you ended up going with? I’m interested in both keeping the warmth in in Winter, and the heat out in Summer.

    • Hi Megan

      I would look at the wool batts for a new building,. They are sustainable, easy to use, lightweight and easily transportable. Think about your glazing options also. Double glazing is really good but there are options for different ypes of glass in single glazing.

      Glad the blog is of help

      Sean

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