Hi And thanks for reading.
I have a few rats running around in my wall cavaties and in the loft.
Did a search and found that people were filling up entrance points into their homes using expanding foam to prevent the rodents from entering.
I did the same and it really has helped, but now they are chewing through the expanding foam and getting back in.
I examined the dried foam and it is not very strong.
Do you know of anything i can use to fill up the entrance points, something tougher than foam.
Many thanks