Damp Walls In Your Home

I posted on my blog, in November last year, about damp walls that arise as a result of not having gutters on your home to control the flow of rainwater off your roof.

On Saturday, I inspected a four-year-old property that had a one tile overhang on the roof. There were no gutters, but the house had paving surrounding it.

However, the external walls of the house were in a desperate state because of the three most destructive mistakes architects, developers, builders, and homeowners make!

As a result, I’m going to repeat some of the issues mentioned in my blog!

Damp walls caused by the lack of gutters

Gutters collect rainwater runoff from the roof through downpipes. These convey rainwater onto concrete rainwater channels away from the house in a controlled manner. In addition, they also protect the timber roof structure at the eaves of the house. Furthermore, gutters protect the house’s exterior walls, windows, and doors. They also protect the foundation from damp and potential damage.

The splashing against the walls was the most serious cause of the penetrating damp on the house walls. Moreover, the crazing cracking (spiderweb-like fine cracking) in the plasterwork was the main indicator of the penetrating damp caused by this splashing up of rainwater. Cracking was not observed higher up on the walls.

Even if your house has a reduced overhang at the eaves, gutters will still provide the required protection against heavy rain.

Insufficient roof overhang at the eaves

Roofs with no gutters and a two-tile overhang (600mm for a metal roof) or less will allow water to fall off the roof close to the walls, windows, doors, and the foundation.

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