Wiktionary
draughtproof
That prevents the access of draughts alt. That prevents the access of draughts v
To seal an opening, so as to prevent the access of draughts
Usage examples of "draughtproof".
The floor was usually covered with straw mats and a Mute's meagre belongings, usually contained in skin bags or matting rolls, were packed around the inside edge to form a draughtproof seal.