Buzzman - I wasn't just suggesting that the heating should be left on overnight but just using this as a model for energy use to compare insulation on the inside wall, ie inside the thermal mass, to outside the wall/in the cavity. If someone is going to have the heating on in the evening to get to a comfortable temp and they have a lot of exposed thermal mass and they want that mass to keep the place reasonably warm overnight, then it will require X J of energy. If they put in internal insulation they can keep the place at the same temp with the same energy use and a shorter time constant ie quicker to heat up. The thermostat could be turned down overnight too. Given that the thermal mass will also leak some of its heat outwards esp if its a poor insulator like brick, then putting insulation inside will need less energy.
I'm like you. We only heat up 1 room in the evening and all heating left off overnight. Get really rugged up in the morning when it might be down to 16 inside the house and sit in the morning sunshine coming in through windows.
How to improve cavity brick thermal performance?
(38 posts) (13 voices)-
Benny
MemberPosted Thursday 26 Aug 2010 @ 1:42:24 am from IP # -
dave lawrence
Memberno problem with designing modular "lego blocks" sized rooms but my understanding of SIPS is that they are floor to ceiling units. not quite that simple to replace. I am no purist, I am just trying to understand the method of making changes to "SIPS" type wall systems and still NONE of its advocates on this forum have offered any ideas or examples. Surely somebody has done it .
Posted Thursday 26 Aug 2010 @ 3:37:46 am from IP # -
GBD
MemberMatas
re a web site - haven't looked so don't have one as I heard it by word of mouth from a reputable source.Dave
re a buildings life.Tone Wheeler is talking about this direction in his latest directions of the 3L's.
Long Life, Loose Fit, Low Impact = the 3 L’s for sustainable building
Just as recycling was founded on the 3 R’s, so we can develop a program for building based on 3 L’s. Long life means choosing materials for the armature of the building that will have 100 years durability. All the other components of the building that will not last as long - services, joinery, fitout, finishes –should be loose fitted in anticipation of their being upgraded or replaced. And it is these components that we should address most critically for their low impact. This approach will be illustrated through 2 projects: the UDIOBaF houses (upside down, inside out and back to front) that challenge all the construction norms for Australian housing, and the Reincarnated McMansion, that takes all the demolished materials of an existing house and uses them, in completely different ways, to build a 3L house.
Check out the RMIT conference re this.
Posted Friday 27 Aug 2010 @ 2:11:04 pm from IP #
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