What happens if rising damp is left untreated?

If left untreated, rising damp can cause extreme damage to the structure of your property. The cost of damp-proofing will be small in comparison to repairing your home interior and exterior fabric that you may have to replace. Rising damp can destroy decoration, plaster and can cause rot to the timber within your home.If left untreated, rising damp can cause extreme damage to the structure of your property. The cost of damp-proofing

damp-proofing

A Damp Proofing system is a moisture control barrier that can be applied to walls, floors and the structure to prevent moisture from passing into the interior living spaces. Damp issues in buildings is extremely common in the UK and damp remedial treatment is one of the most common property care repairs.

› damp-proofing › faq

will be small in comparison to repairing your home interior and exterior fabric that you may have to replace. Rising damp can destroy decoration, plaster and can cause rot to the timber within your home.

What happens if you dont treat rising damp?

If a condensation issue is left untreated it can have an impact not only on the property but also on your health. Black spot mould is a common side effect of a condensation problem. Black spot mould as well as unattractive to look at is also aggravate issues with asthma and other respiratory problems.

Can you ignore rising damp?

Widespread Damage

The damage rising damp causes only expands to other areas of your property if you don't put a stop to it. As the damp accumulates in and throughout your walls, it will rot skirting boards, remove paint, and even potentially cause the masonry between your brickwork to deteriorate.

Can rising damp cause structural damage?

Rising damp can cause superficial damage to an internal wall, as well as structural damage to timber and masonry. It harbours mould too, which can result in health problems for you and your family.

How long does it take for rising damp to dry out?

Indeed in the damp proofing industry's own Code of Practice it states that “walls will take at least 6 to 12 months to dry out. The presence of paints or renders will substantially extend the drying period”.

28 related questions found

What are the signs of rising damp?

Rising Damp Signs

• Damp Or Wet Patches Appearing On Walls. ...
• Salts Within The Plaster | One of the Most Frequent Signs of Rising Damp. ...
• Flaky Or Bubbling Plaster. ...
• Rotting Skirting Boards And Flooring. ...
• Damp and Musty Smell. ...
• Rusting Iron And Steel Fasteners. ...
• Crumbling Bricks and Mortar Between Bricks.

How do you cure rising damp?

The most effective and economical way to treat rising damp is with a damp proofing injection cream. You can choose between complete kits or individual cartridges of cream from leading brands such as Kiesol C and Aida. The cream is injected or hand-pumped into specially-positioned holes in the mortar course.

Can rising damp be fixed?

The only way to treat rising damp is to create a new damp-proofing course to prevent moisture movement through the structure. Historically, walls were cut into and masonry removed to install a new physical damp-proofing course along the masonry line. This process poses a number of problems for most structures.

Does building insurance cover rising damp?

Does home insurance cover rising damp? In most cases, it won't. Buildings insurance policies don't pay out for problems that are seen as the result of gradual deterioration, which is what insurers consider rising damp to be.

How do you treat internal rising damp walls?

Treating Rising Damp on Internal Walls

By using Dryzone Damp-Proofing Cream or Dryrod Damp-Proofing Rods, a remedial DPC can be injected directly into the masonry, ensuring a targeted treatment of the problem.

Can you sell a house with rising damp?

As long as the buyer doesn't reduce their offer, this is a good outcome for the seller. In severe cases of rising damp, mortgage companies won't lend and that means the seller will either need to carry out the work themselves or sell to a cash buyer.

Should you buy a house with rising damp?

It is ok to buy a house with damp. However, upon purchasing the property, you should have the damp problem checked by a qualified surveyor. The surveyor can tell you what is causing the damp problem to occur and how much it is going to cost to get it fixed.

Can I claim on house insurance for damp?

We're often asked 'does house insurance cover damp'. The answer to this question is most likely to be 'no'. It's not usual for buildings, content and landlord insurance policies to cover gradual deterioration, which is the category that damp problems generally fall into.

Can rising damp cause health problems?

Rising damp is a serious problem that affects all the inhabitants of the house and can even cause respiratory problems, allergies, asthma, pain and even lung diseases. This happens because the excess humidity leads to the appearance of molds, whose spores are the major cause of respiratory allergic diseases.

Can rising damp cause dry rot?

Despite its name, dry rot only affects damp timber and structural materials. This can be caused by high levels of condensation in your home. Water entering your home from an external source, for example as rising damp, also causes dry rot.

Can you get rising damp on internal walls?

Rising damp and penetrating damp both can affect your home's internal walls. Penetrating dampness on inner walls occurs when water penetrates the building through cracks and openings in the walls, or it occurs due to any structural defect in the property.

What damage can damp do to house?

Yes, if you have damp and mould in your home you're more likely to have respiratory problems, respiratory infections, allergies or asthma. Damp and mould can also affect the immune system.

How do you know if your damp proof course has failed?

A damp tide mark, typically up to 1.5m high on your inner wall, external wall, or both caused by groundwater gradually rising through the porous surface of your brickwork. Damaged skirting boards. Peeling wallpaper.

Are dehumidifiers good for damp?

Dehumidifiers draw excess moisture from the air, helping to combat condensation, prevent mould growth and reduce damp on walls.

Does rising damp damage bricks?

Rising damp can cause bricks to not only crumble, but become quite porous. That's because the moisture already present in the brick itself makes it much easier for additional moisture to make its way into the brickwork, and spread out in the wall.

How do you treat damp walls internally UK?

You can also take other steps to halt damp on internal walls, including:

1. Open the windows and air your property regularly.
2. Heat every room evenly.
3. Make sure air can circulate freely around your property and avoid putting furniture and other items against walls.
4. Check pipes and guttering regularly and unblock if needed.

How far does rising damp rise?

In practice Rising damp can generally reach the height of 1.0m above the ground level however for various reasons the damp can go higher.

Can I paint over rising damp?

Can you paint over damp? No. Never paint over damp – it doesn't address the root cause of bubbling paint or peeling wallpaper, and you'll need to paint it again very soon. Fix the source of the damp then let the wall fully dry out before painting it.

Does rising damp cause mould?

Much like condensation, rising damp produces dark mould patches on your walls, but there are a few distinguishing features you can look out for too. Peeling paint or wallpaper, along with damage to skirting boards and loose flooring, could all point to rising damp.

How common is rising damp?

General academic consensus puts the incidence of rising damp in all damp properties at around 5% but our own view based on pragmatic experience of carrying out hundreds of detailed damp investigations, using the full range of diagnostic tools puts the incidence at significantly less than 5%.