Daylight through Earth Contact walls in VE:Compliance

Part L2 of the Building Regulations (2006 edition).
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Simon Chilvers
VE Newbie
VE Newbie
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Joined: Tue Oct 28, 2014 12:27 pm

Daylight through Earth Contact walls in VE:Compliance

Post by Simon Chilvers »

I'm modelling a large extension to an existing building that has a floor being added to it at level 4 and some new subterranian areas being utilised as new "occupied" spaces. There's a large change in level from one side to another and as a result several sub-terranian rooms, mainly for storage and toilets. Toilets are one of the room types that the notional model adds daylight control to, except when it does not have an external wall (obviously) but also when it is bounded by an adjacent building.

I've set the subterranian rooms in question with earth contact type constructions and have also drawn next to them a topigraphical shade for no other perpose to allow some screenshots of the model to be taken an allow the viewer to orientate themselves as to which level they are looking at on the model etc.

Why does the notional building not account for daylight through party walls but does allow for daylight through earth contact walls?? Or is there a tickbox somewhere I've not checked?

Thanks

Simon
RossThompson87
VE Professor
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Joined: Mon Feb 13, 2012 8:56 am

Re: Daylight through Earth Contact walls in VE:Compliance

Post by RossThompson87 »

Hi,

I've had this problem before. Topographical shade is applied in both notional and actual buildings.

So if you 'clad' your ground contact walls with topographical shade it prevents the notional building having daylight and getting an unfair benefit from dimming etc.

Ross
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