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How To Stop Water Coming Through Brick Walls: Top Tips

stop water coming through brick walls

The saying goes that our homes are our castles – even if those castles range considerably in design, and fail to provide a surrounding moat. That lack of moat, however, doesn’t always mean a lack of damp!

Many homes will suffer from some form of damp at one time or another, and damp issues are ones that are likely to cause you many a sleepless night, worrying about exactly how to resolve them. Or how to stop water coming through brick walls into your home!

However, the good news is that most issues like this are not quite as serious as they first appear and, in many cases, there is a relatively easy fix. Depending on the construction material used, there are different approaches to dealing with damp.

In this article, we focus on how to stop water coming through brick walls, although the information applies to most walls constructed with traditional building materials as well. We’ll explore the different types of damp that occur, as well as some failproof fixes that will give moisture its marching orders…

Rising Damp vs. Penetrating Damp: The Essential Difference

One is a 1970s sitcom, and the other is a real issue for house-holders. Rising damp is a common term bandied around these days, by surveyors working on commission for damp proofing companies.

As far back as 2009, a former chairman of the Royal Institute for Chartered Surveyors (RICS) argued that rising damp was a myth. It makes sense – few of us have seen rain fall upwards, rivers flow uphill, or puddles drain via the most difficult route possible!

In reality, water, including damp, likes to flow downwards, and it tends to look for the easiest route to do so.

Penetrating damp is, however, another matter entirely, and is a far more common problem period properties and new-builds alike. If you are interested in finding out how to stop water coming through brick walls, then understanding penetrating damp is crucial. So what is it, and how and why does it occur?

Brick walls (and stone ones) look pretty solid, but the materials are naturally porous, made up of small air pockets which are crucial to both the structure of the material, and also the overall thermal conductivity of the building.

The small air pockets reduce the loss of heat from the building, creating a natural insulating effect.

However, when moisture and rain hit the external walls, their porous nature means that they easily absorb water. This can affect buildings of any age, but older buildings will be more likely to suffer from gradual deterioration in the quality of brick or stone work, enabling water to penetrate through the masonry, and into the interior space of your home.

Penetrating Damp: Key Signs

Externally, localised patches of damp or discolouration on brickwork will indicate that penetrating damp is an issue. Moss or algae build up on external walls will also suggest that an area is damp-and should be addressed with immediate effect.

Damage to brickwork or individual bricks is also a sign that penetrating damp is a problem.

Whilst the external signs of penetrating damp are unsightly, the internal ones may be more distressing. They include: plaster damage, dark patches of mould, and even wet rot – where skirting or other wooden features have become affected by damp penetrating through the wall.

The latter are not just unsightly, but can also have health implications, as the bacteria that they breed can lead to breathing related problems, or increased risks of infections.

Several products are available, and it’s always worth comparing them to find the most suitable solution for your home. One good example is Home Logic Wall Insulation – don’t be fooled by the word insulation though-it is also a waterproofing solution as well!

Penetrating Damp: Thoroughly Modern Solutions

When it comes to how to stop water coming through brick walls there are, thankfully, a range of solutions on offer. External renders are one traditional approach, although these don’t prevent damp from penetrating entirely.

Modern solutions include a range of wall-insulating and waterproofing products which provide a waterproof barrier against inclement weather. Most are spray on, and may include a render-style finish.

The important point to note, when choosing a product, is to use one that allows the building to breathe.

A building that can breathe is crucial, as this reduces the risk of damage to brickwork, and prevents condensation from building up on inner walls – which, in turn, can cause even more internal damp problems to occur!

How To Stop Water Coming Through Brick Walls With Insulation

Several products are available, and it’s always worth comparing them to find the most suitable solution for your home. One good example is Home Logic Wall Insulation – don’t be fooled by the word insulation though-it is also a waterproofing solution as well!

This product is a spray on solution that chemically bonds to external walls, creating a seal that is both water resistant and insulating. By bonding to the internal surfaces of individual pores, it continues to allow the building to breathe, unlike other products on the market, which require additional ventilation.

This has two significant benefits; firstly it inhibits water penetration, forcing rain away from the brick.  Secondly, by keeping the air pockets water-free, it allows them to perform their insulating task to the full; not only improving the water resistance of your home, but also increasing its energy efficiency.

A damp brick wall (with only 5% moisture) can reduce insulation effectiveness by up to 50%

Talk To Our Team Today!

For more information on how to stop water coming through brick walls using wall insulation products, contact one of our friendly advisers today. 

Call 0800 1700 636 to speak to one of our experts, or email survey@homelogic.co.uk, to arrange a free site survey and no-obligation quote.

Waterproof your walls in time for Winter with Home Logic Wall Insulation. Take the first step to giving moisture its marching orders today, by simply clicking the button below!