Quick answers
Pipes running along the base of our terrace wall are letting damp in. How can they be boxed in and waterproofed?
When an old pipe cover on a terrace falls apart, a new box is built over the pipes, all joints with the wall and floor are sealed, and the entire box and surrounding tiles are coated with waterproof membrane.
On many balconies and penthouse terraces, heating or water pipes run along the outside corner where the wall meets the floor. They are often boxed in with lightweight covers that eventually split in the sun and rain, trapping water against the apartment wall.
On this terrace the old pipe cover had fallen apart completely. The rotten pieces were cleared away and a new box was built to enclose the pipes along the length of the wall.
Every edge and joint where the box met the wall and floor was sealed, and the entire box — together with the strip of tiles in front of it — was coated with white liquid waterproofing so rainwater sheds cleanly off it.
Jobs that show it
Terrace Pipes Boxed in with Wood and Waterproofed
The pipes along the foot of a terrace wall had an old cover that had fallen apart. They were boxed in with wood, the joints were sealed, and the whole box, along with the tiles around it, was waterproofed with a white coating.
See the job step by step
Sealing Pipes, Posts and Parapets on a Roof
The places where pipes and steel posts pass through the membrane are usually where water gets in. Here each one was sealed with a white waterproof coating.
See the job step by step