In message , The
Medway Handyman writes

I saw a highly clever draught excluder in someones house recently. Two
tubes, each the width of the door joined by a strip of fabric.

O_______O

Ah! My good lady saw those and suggested we try them :

URL:http://www.scottsofstow.co.uk/Produc...uage=en-GB&pro
duct=1170655

That link may break. Try the Scotts of Stow site, and search for
draught.
--
Graeme