Do strip footings need plastic underneath?

[meo]

Hi,
Probably a dumb question, since the footing is just what the masonry sits on, but do I have to put plastic under strip footings like you do under a slab?

Best to check before I pour!

Footings are 500x300x4400, with 3F11 trench mesh.

Thanks in advance,
AM

[TommyC]

No. Plastic is to stop moisture getting up into the structure, and you would have a dampcourse in you brick to do that function.

[meo]

Thanks, thought so but always better to get advice from someone who knows what they're doing.
Speedy reply too! Have a good weekend.