I've just moved into a new build house and there is a very small patio outside the back door with a drainage channel seperating the slabs from the house. The patio is completely level with the back door cill, i.e no step and therefore is the same level as the ground floor. I've been told this is for disabled access so a wheel chair can be pushed in easily. The back door also has a flat threshold. This is all ok except that some of the air bricks that are spaced along the back wall are covered half way up by the drainage channel due to the high level of the patio. I think they are the 'stepped' type air bricks for the suspended ground floor. Is this acceptable? As its a new build I thought a building regs officer would have had to seen the house and sign it off. I want to extend the patio across the back of the house but this would mean blocking the other air bricks half way up aswell. Surely this cant be right?! I think my only option would be to take up the old patio and relay a new one at a lower level.
My other concern is that my back garden which consists of mainly clay slopes down towards the house and every time it rains i'm worried that the drainage channel isnt going to cope and i'm going to see water coming in my back door!
Any help/advise would be greatly appreciated
My other concern is that my back garden which consists of mainly clay slopes down towards the house and every time it rains i'm worried that the drainage channel isnt going to cope and i'm going to see water coming in my back door!
Any help/advise would be greatly appreciated