I've got someone coming to repoint the back of my house in spring (he's done quite a bit of work for me and whilst a little clumsy/messy definitely not a snake oil salesman) he's recommended applying this as a boots and braces type thing (north facing wall).
I've got someone coming to repoint the back of my house in spring (he's done quite a bit of work for me and whilst a little clumsy/messy definitely not a snake oil salesman) he's recommended applying this as a boots and braces type thing (north facing wall).