Facade penetration causes damp walls and mold. You see rings near window frames or sills. We at Ultrices Leak Detection locate your facade penetration quickly and neatly.
We use thermography and dye to inspect the cavity wall, masonry and jointing, window frames, sealant joints, cracks, lead flashing, roof edge, chimney, balcony, and facade cladding. We check for rain penetration, wind pressure, and thermal bridges.
You receive a clear report with repair advice, such as repairing masonry, replacing lead, sealing joints, and impregnating. Read our Google reviews 5/5 in this experiences regarding damp penetration through the facade and feel confident.
Table of contents
What is façade penetration and how do you recognize it?
Facade penetration is penetrating moisture that enters your facade through masonry, joints, or detail connections and becomes visible in interior walls. You see it as mold spots, discoloration, peeling paint, a musty odor, and sometimes as cold zones in the interior wall. We link these signals to driving rain load, capillary action, and vapor transport as described in NEN 2778 and insights from TNO and WTA guidelines. With Ultrices leak detection, you tackle facade penetration without demolition work, with a proven 99 percent success rate and no cure no pay.
- Typical signs: rings on plasterwork, damp window frame corners, salt efflorescence, peeling wallpaper, often worse with southwesterly winds and after prolonged rain
- Vulnerable details: transition with frame and sill, open weep holes, cracks around lintels, aged lead or water sills
- Risky materials: porous brick, sand-lime brick, powdered mortar, vapor-proof paint layers that retain moisture
- Indoor climate: thermal bridges and high relative humidity exacerbate visible damage and mold growth
Main causes of damp penetration in the facade
Facade penetration is never caused by a single factor. Often, a combination of driving rain, aging, and detail defects plays a role. We map out all risk zones so that you do not confuse causes with symptoms.
- Rainfall and wind pressure: according to KNMI data, wind-driven rain is increasing, causing masonry to absorb and let through more water
- Aged mortar and cracks: leached joint mortar and hairline cracks create capillary channels towards the inner leaf
- Cavity problems: contaminated cavity, sagging insulation package, missing or leaking cavity battens and thermal bridges at anchors
- Faulty finish: vapor-proof paint, incorrectly impregnated masonry, missing flashing or poorly connected sealant joints
Our leak detection process for facade penetration
You will gain clarity with a standardized investigation and an expert report within three days. We work nationwide for private and business clients, are VCA VOL and NEN 3140 certified, and often in consultation with your insurer.
- Intake and damage analysisWe link complaints to usage, orientation, and the recent weather situation, and schedule emergency assistance if necessary.
- Non-destructive testing: thermography, moisture measurements, endoscopy and targeted dye or smoke tests without heels
- Verification: controlled simulation of rain load to confirm causes and rule out alternatives
- Report and plan: photos, measured values, cause-and-effect analysis, repair advice, prevention and repair estimate
Leak detection process request
Measurement methods and technology that yield results
Our specialists combine physical principles such as capillary rise, hygroscopy, and vapor diffusion with advanced tools that make your problem visible.
- Thermography: FLIR thermal imaging shows cold and wet zones and makes water paths along anchors and thermal bridges visible, view our infrared facade scan for practical examples
- Moisture measurementsTramex and Protimeter compare superficial and deep moisture in the inner and outer leaf and show trends over time.
- Dye test: fluorescent dye follows the leakage path from the butt joint or sill to the interior finish
- Smoke and airtightness: Blower Door principle and smoke visualization show gaps around window frame, expansion joint, and lintel
Repair, prevention, and a guarantee of results
We recommend repairs that suit your facade type, whether it involves solid masonry, a cavity wall, concrete, or natural stone. You receive a guarantee on coverage and guidance up to and including the final inspection.
- Functional recovery: renewing jointing with the correct mortar class, crack repair, replacing or adding flashing and water barriers
- Protection: hydrophobization with silane or siloxane tailored to the absorption profile while maintaining vapor permeability and sd value
- Detail improvement: reprofiling water sills, repairing sealant edges, correctly opening or covering weep holes and optimizing cavity ventilation
- Aftercare and monitoring: establish baseline situation, monitor drying and final thermographic measurement for handover
In addition to technical expertise, we offer service that counts. On-site within one hour in emergencies, availability day and night, professional detection equipment, no risk because no solution means no payment, and five out of five Google reviews. Call or WhatsApp 085 2505 217 or email info@Ultriceslekdetectie.nl for immediate advice. If you want to delve deeper into investigation methods and validation, read how we precisely locate facade leaks via precisely locate facade leak and how we perform cause confirmation with a controlled water test.
Practical example and insurance coverage
After insulating a cavity wall, penetrating damp occurred at a west-facing corner gable. Thermography revealed thermal bridges at anchors and wet zones under the lintel. Using a dye test, we confirmed water ingress through micro-cracks in the jointing. Repair consisted of joint renewal, a local flashing, and a vapor-permeable hydrophobization treatment. After a rain simulation test, the inner wall remained dry. The damage was covered by the buildings insurance thanks to our substantiated report. If you want to know for sure how this applies to your property and want to liaise directly with your insurer, please contact us and request your report today. free proposal for facade penetration testing on.
We are Ultrices Leak Detection, your partner for facade penetration, rain penetration, exterior wall leakage, and moisture in cavity walls. We work without demolition or breaking, with a 100 percent risk-free inspection and a comprehensive expert report within three days. To learn more about specialist facade inspections and validation with thermography, view our approach at leak detection on the facade.
Frequently asked questions
What is damp penetration and how do you recognize it when it rains?
Facade penetration, also known as penetrating damp, is precipitation that enters the facade through porous masonry or weak jointing and migrates to your inner wall via the cavity or thermal bridges. You will then see dark damp patches, mold edges, peeling paint, or salt efflorescence, especially after driving rain and often on the windward side of the house. Think of wet corners around window frames or a musty smell near skirting boards.
If in doubt, pay attention to the pattern: if it dries up in dry weather and returns after rain, there is a good chance it is due to rainwater ingress. We at Ultrices Leak Detection track this down specifically and provide clear repair advice. If you would like to delve deeper, read on. How to recognize penetrating damp in the facade and have it specifically detected.
What causes damp penetration through the facade and what is the difference between this and rising damp or condensation?
Causes include weathered or cracked mortar, porous brickwork, sealed or missing open weep holes, leaking connections at window frames, missing or perforated water barriers, and saturated cavity wall insulation. Detail errors around lintels, expansion joints, or lead flashing can also create water bridges, allowing precipitation to penetrate indoors via capillary action.
The difference in diagnosis is crucial. According to NEN 2778, penetrating damp is precipitation-driven, whereas rising damp starts at the bottom and carries salts with it. Condensation forms due to high humidity on cold surfaces and has no direct link to rain. We test this from a building physics perspective and under controlled conditions. You can find more signs and examples at Moisture in interior wall caused by penetration through the facade.
How do you detect damp-in of the facade without demolition work, and what does that cost approximately?
We combine infrared thermography with FLIR camera endoscopy in the cavity, accurate moisture measurements, a smoke test, and a calibrated spray test so that we can see exactly where rain strikes and how water moves through the structure. Everything is non-destructive, so no hacking or breaking is required. Available nationwide, on-site within 1 hour for emergencies, and 24 hours a day, 7 days a week. VCA VOL and NEN 3140 certified.
You will receive a comprehensive expert report with photolog measurement data and repair advice accepted by insurers within three days. We work with a free quote within 24 hours on a no cure no pay basis and a 99 percent success rate. The investment depends on the building type and complexity. For guide prices, please view our rates for facade leak detection.
What repair options do you have after water penetration through the facade, and does the insurance cover the damage?
Repair is a tailored process and may consist of chiseling out and re-pointing mortar joints, hydrophobing with silane or siloxane impregnation, repairing cracks in masonry, correcting water barriers or lead flashing, repairing or installing open weep holes, and sealing gaps around window frames with suitable sealant or compression tape. Drying or locally replacing saturated cavity insulation and resolving detail errors around lintels and sills prevents recurrence.
Insurers often cover consequential damage and leak detection, provided the cause is structural and the report is made in a timely manner. We work daily with Dutch buildings insurers, guide the damage report, and provide a complete file, which increases your chances of coverage. Furthermore, we offer a guarantee of coverage for our leak detection service within standard policy conditions; always check your policy.