Should residential footings have a fall?

[zappastix]

Hi

Hopefully, we are digging the footings today for a small extension;
500mm wide x 1m deep

I have just read the following from Cemex
http://www.cemexliterature.co.uk/pdf/Concrete_Readymix_DIY_Guide.pdf

Step 3: Setting a ‘fall’ (fig. 4)
Plan the slope to allow water to run off easily.
Check the forms with a spirit level, and make
one side lower to allow drainage away from
buildings. Normally allow about a 25mm drop
for a 1 metre run.

Is this correct? i.e. do you have to have a fall on residential footings?

I ask because our BI is not the easiest guy to talk to, I'd rather not
have to ask. I thought the footings should be flat.

Any advise would be appreciated.

Thanks.

Stephen

Should residential footings have a fall?

 

[freddiemercurystwin]

That guidance is for pathways or driveways etc though isn't it? Foundations need to be horizontal.