Extension - thermalite, trusses... or not?
Extension - thermalite, trusses... or not?
Hi all!
I'm getting a single storey side extension added to my bungalow. 4m x 6.5m. It will come off an existing hip roofed out rigger. Builder has said:
- he doesn't like thermalite blocks. U values are good but quality poor. They crack and the walls don't seem very strong with the poor adhesion of mortar. My plans show these being used with 100mm cavity filled with 90mm insulation. He prefers fiberlite but with lower U values, means walls have to be 2" thicker so they use cavity bats...
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by John Smith Esq.
This has been automatically posted in the DIYNot Forum on DIY Talk. The new DIY Forum
Extension - thermalite, trusses... or not?
Hi all!
I'm getting a single storey side extension added to my bungalow. 4m x 6.5m. It will come off an existing hip roofed out rigger. Builder has said:
- he doesn't like thermalite blocks. U values are good but quality poor. They crack and the walls don't seem very strong with the poor adhesion of mortar. My plans show these being used with 100mm cavity filled with 90mm insulation. He prefers fiberlite but with lower U values, means walls have to be 2" thicker so they use cavity bats...
Read more
by John Smith Esq.
This has been automatically posted in the DIYNot Forum on DIY Talk. The new DIY Forum