firewalls
as you see from all these rooftop photos all our terraced houses are separated at roof level by a "firewall" protruding between each house. These small walls, exposed to the weather for decade after decade (in my case, since 1872), when not well maintained, are the source of damp and water ingress - nevermind neighbour tensions and dispute. Fortunately I have wonderful neighbours and we've had ours renewed and rebuilt to be fit for at least the next generation of occupiers.
firewalls
as you see from all these rooftop photos all our terraced houses are separated at roof level by a "firewall" protruding between each house. These small walls, exposed to the weather for decade after decade (in my case, since 1872), when not well maintained, are the source of damp and water ingress - nevermind neighbour tensions and dispute. Fortunately I have wonderful neighbours and we've had ours renewed and rebuilt to be fit for at least the next generation of occupiers.