<!--[if gte mso 9]> Normal 0 false false false EN-GB X-NONE X-NONE MicrosoftInternetExplorer4 <!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:-1610611985 1107304683 0 0 159 0;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-1610611985 1073750139 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:""; margin-top:0cm; margin-right:0cm; margin-bottom:10.0pt; margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-fareast-language:EN-US;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-fareast-language:EN-US;} .MsoPapDefault {mso-style-type:export-only; margin-bottom:10.0pt; line-height:115%;} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 72.0pt 72.0pt 72.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> <!--[if gte mso 10]> Hi, i have been trying to find some info on building with SIP,s in conjunction with concrete block & beam flooring. (Ground & 1^st floors) There is no problem with the ground floor as we could of built straight off the block & beam ground floor& gone right to the roof.
But we would like concrete (Block & beam) floor on the 1^st floor as well. So this will involve building internal walls in heavy duty concrete block/bricks to support the 1^st floor block & beam.
Can you see any problems with having a cavity as in the diagram? We was a bit worried on how to vent the cavity & the possibility of condensation build up.
(I know the DP is showing in the wrong place. lol)
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Not being an expert - my suggestion would be to fill the cavity with fiberglass insulation, vented to the interrior, top and bottom. I equate fiberglass to a 'furnace filter' - giving a degree of convection, air movement. Possibly, leave an open area, around the wall, at the vent level I also think the foundation should be higher than the ground level.

collector, just curious why the block floor. It seems alittle complicated.

Mainly to do with sound (Instruments). We cant get the same values with timber.

Have you thought of light-weight concrete ? Or other cement floor alternatives, not to contredict you just no one mentioned it yet. Also cutting sound transmitance can be achieved w/well insul ceiling. Sound will transmit from walking on but almost none going up.
Cheers!