I think preventing any potential water damage is prudent.
My neighbour's 2 storey house is built right up against mine with no separation. It is having a third story added which will also be built right up against my existing 3rd story and the building inspector requires the virtually...
I am located in Toronto, Ontario, Canada where the temperature varies considerably from winter to summer.
I have a house with fairly large areas of flat roof. The membrane is a type of black rubber without any granulation on it. It gets a lot of direct sunlight and I have noticed it is...