I have just fitted a roll of StopGap to the floor in my hall. This is the easiest DIY job I have ever done. So easy I thought I must be doing something wrong. So thank you. I have just read the information you sent and discover it can be used on windows, so I have tried a bit I had left over on a draughty sash window, and yes, it works!!!!! So, now I am going to order more, for my living rooms and draughty windows. Thankyou. Its snowing outside again.                        Marilyn L