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Penetrating Damp Treatment

Penetrating Damp & Water
Ingress Treatment

Penetrating damp occurs when water enters a property through defects in the building fabric, such as faulty plumbing, damaged rainwater goods, cracked roof tiles, porous brickwork, or failed seals around doors and windows. Unlike rising damp, it can appear at any height in the building and often worsens during periods of heavy or prolonged rainfall. 

It is commonly identified by damp patches after rain, staining or deterioration of plaster, black mould growth, musty odours, and moisture around windows, doors, or chimney breasts. 

If left untreated, penetrating damp can lead to ongoing internal damage, decay of building materials, and recurring moisture problems that become more costly to resolve over time. 

If you have concerns, Biocraft South West provides professional damp surveys across the South-West – ensuring sources of water ingress are accurately found. If you have questions, our friendly, professional team are always happy to provide advice. 

Contact us today to find out more! 

Concerned about penetrating damp or damp patches in your home? Biocraft South West’s PCA-accredited experts deliver trusted, effective damp-proofing solutions you can rely on.

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What Is Penetrating Damp?

Penetrating damp occurs when water enters a property through walls, roofs or structural elements. 

Buildings are designed to shed water safely away from the structure. Where defects develop, moisture can bypass these protective systems and enter internal building materials. 

Unlike condensation, which forms from moisture within the property, penetrating damp occurs as a result of water entering from an external source.

Penetrating damp is also frequently misdiagnosed as rising damp. However, when a building is experiencing damp issues, it’s much more likely to be associated with structural defects or damage rather than water being drawn up from the ground. 

The severity of penetrating damp can vary greatly, from isolated decorative staining to widespread moisture ingress affecting structural elements and internal finishes. 

Common Causes Of Water Ingress 

There are many ways that water and moisture can enter a building. Whilst the following isn’t an exhaustive list, it demonstrates the possibilities when you’re facing a damp problem within your property.

Defective Gutters and Downpipes

Faulty rainwater goods are frequently responsible for moisture problems.

This may include:

  • Blocked gutters
  • Cracked downpipes
  • Leaking gutter joints

Over time, excessive amounts of water can saturate external walls and lead to moisture ingress internally.

Roofing Defects

Defects within the roof structure can allow significant quantities of water to enter a property.

Common issues such as:

  • Broken roof tiles
  • Slipped slates
  • Chimney defect
  • Damaged flat roofing systems

Cause water to enter through the roof, presenting as staining to ceilings, upper walls or loft spaces.

Defective Masonry and External Render

External wall defects can significantly increase the risk of penetrating damp.

Common defects include:

  • Cracked or spalled brickwork
  • Open mortar joints
  • Defective cavity wall construction

Over time these defects create pathways that allow moisture to travel through the building.

Plumbing Leaks

Not all water ingress originates externally.

Leaks from:

  • Water supply pipes
  • Waste pipes
  • Heating systems

Can appear similar to many of the symptoms associated with penetrating damp.

We provide professional damp surveys and damp proofing solutions across Wiltshire, Somerset, Gloucestershire and Oxfordshire, including Bath, Bristol, Swindon and surrounding areas.

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Symptoms & Effects of Penetrating Damp

Penetrating Damp is not always immediately dangerous. Often, damp issues will make themselves known through various visual signs:

  • Damp patches on internal walls
  • Moisture around windows and doors
  • Ceiling staining
  • Blistering paint
  • Peeling wallpaper
  • Crumbling plaster
  • Salt deposits
  • Musty odours
  • Localised mould growth

Depending on the source, these may becomes more apparent during or shortly after periods of rainfall.

Because many forms of dampness can produce similar symptoms, we highly recommend a professional damp survey before any remedial works take place. If you suspect Rising Damp in your property, Biocraft South West’s specialist surveyors can ensure your property is accurately diagnosed.

What are the long-term effects of Damp?

If left untreated, penetrating damp can cause significant damage to a building. Initially the symptoms are mostly aesthetic, however, if damp is allowed to continue, the structural consequences are much more serious, as internal materials may begin to break down. At the very least, long-term damp will decrease the thermal efficiency of your property – causing your bills to rise.

Of the most serious, timber decay in the form of wet rot or dry rot can develop when internal timber is exposed to damp for too long. Once this happens and the wood begins to rot – it’s only a matter of time before more serious problems develop.

How Penetrating Damp Is Treated

Biocraft diagnoses & provides long-term treatment for penetrating damp.

Step 1: Establish the source

Effective treatment starts with figuring out where water is entering the property.

Biocraft’s expert surveyors complete a full inspection, checking external walls, roofs, rainwater goods, and ground level to see where moisture is entering the property.

Following this, we inspect the area where damp is affecting, checking for moisture patterns, alongside potential leaks from plumbing. If you have a basement or space below your property, our surveyors will also investigate this space to rule out the potential of rising damp.

By tracing moisture back to its origin, we can recommend targeted remedial works rather than costly, unnecessary treatments.

Step 2. Implement Damp Proofing treatment

Treatment depends entirely on the source of water ingress. As Penetrating Damp can appear from a variety of sources, our specialist CSSW & CSRT engineers come up with a tailored solution to provide a professional, long-lasting solution.

When it comes to the repairs and solutions Biocraft South West can offer, here are a few (but not all) that may be applicable for your property:

  • Gutter and downpipe repairs
  • Roof repairs
  • Brickwork & render repairs
  • Window and door sealing
  • Basement waterproofing

Because penetrating damp is a symptom rather than a single defect, successful treatment relies upon accurately identifying and eliminating the underlying source of moisture.

It’s impossible to recommend treatment without a dedicated damp survey, as this provides a comprehensive inspection of every potential cause. Contact the Biocraft South West team today to arrange an inspection of your property.

Why Choose Biocraft South West?

The South West’s leading Damp Proofing Experts

As a symptom of numerous sources of water ingress, Penetrating Damp can be both difficult and exhausting to deal with.

At Biocraft South West, we focus on identifying the root cause of moisture problems and delivering practical, effective remedies tailored to the needs of each property.

Guaranteed long-lasting treatment

Treating visible damp symptoms alone rarely solves the underlying problem.

When penetrating damp is confirmed through our damp surveys, our expert team ensure our solutions fully resolve not only the visible symptoms, but the full underlying issue – ensuring your property is protected for the long term.

Qualified PCA Damp Surveyors

All Biocraft South West surveyors hold recognised CSRT and CSSW qualifications and operate in accordance with Property Care Association standards.

Our experience in diagnosing and treating penetrating across properties throughout the South West allows us to provide professional advice you can rely on, whether you are a homeowner, landlord, property purchaser or managing agent.

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