Protecting the Tops of Your Walls

Walls are good at shedding water from their faces. Rain hits the surface, runs down, and drains away at ground level. But the tops of walls are different. Without protection, water soaks straight down into the masonry.

Parapet walls, garden walls, and boundary walls all face this problem. So do flat topped pillars and the upstands around flat roofs. Any horizontal masonry surface exposed to weather needs capping.

What Happens Without Capping

Uncapped walls absorb water. In winter, that water freezes and expands, cracking the mortar and eventually the blocks or bricks themselves. This is called frost damage and it is surprisingly fast acting.

Even without frost, wet masonry causes problems. Dampness migrates down into the wall, causing internal damp patches, mould growth, and that musty smell in rooms against external walls.

Capping prevents all this by keeping water out of the wall top.

Why Aluminium Works

Traditional wall cappings were concrete, stone, or clay copings. They work, but they have drawbacks.

Concrete copings stain and weather. They can crack in frost if the mix was not quite right. Stone copings are expensive and heavy, needing stronger walls to support them.

Aluminium capping solves these problems. It is light enough that it does not stress the wall. It never absorbs water. The powder coated finish does not stain or fade. And you can match it to other elements like windows and rainwater goods.