Full Spectrum Testing, Thermal Imaging For Building Diagnostics

04/06/2026

Dry rot can spread far further than most people expect.

This short clip shows it appearing in multiple rooms and levels of the same property — including signs around window joinery, behind finishes, and evidence of spore release. It can also travel through masonry in search of timber and the right conditions, and in some cases it may even affect neighbouring properties via shared (party) walls.

If you’ve noticed a musty smell, cracking/bubbling paint or wallpaper, distorted skirtings, or “mushroom-like” growth, don’t ignore it. The earlier it’s confirmed, the simpler (and cheaper) it usually is to deal with.

If you’re in the North West and want an independent assessment, message me or call Full Spectrum Testing and I’ll tell you what to check next.

20/05/2026

Not the normal day, but a life saved !

20/05/2026

A reminder to all roofers out there – please check before you seal! 🕊️

Last week I was called in to survey roof timbers on a property ahead of a sale. Five days earlier, roofers had removed slates for repairs and then replaced them. What they didn't realise was that a pigeon had flown into the loft space during the work and they'd sealed it inside.

When I found the bird, it was weak and exhausted after five days trapped in the dark. But it was still alive. I carefully wrapped it in a bed sheet, took it to the backyard where it was safe, and gave it water and food. Over the next hour, you could see its strength returning. It started eating properly, moved around, and eventually flew away to safety.

This is a genuine hazard on every roof job. A few minutes checking the loft space before you seal up, looking for birds, bats, or other wildlife, could save a life. It's also the right thing to do.

If you're a roofer, a surveyor, or anyone working at height, keep an eye out for our little friends. They depend on us.

Are you a roofer? Have you seen anything like this or has a roofer left anything weird at your house? As weird as a live animal? Or anything else? Drop a comment and let us know.

16/05/2026

What’s your experience with mould ? Easy fix like this or something worse?

15/05/2026

🔍 Ceiling mould doesn't always mean big problems. Here's what we found.

Image 1: Kitchen ceiling with mould in the corner. Homeowner saw this and worried it was structural damage or a serious issue. But thermal imaging told a different story.

Image 2: The thermal image shows a cold spot (blue/purple area) at 13.2°C whilst the rest of the ceiling sits at 16.5°C. That temperature difference is the culprit. Steam from cooking and everyday household activities rises, hits that cold spot, and condenses. Mould loves condensation – it's the perfect breeding ground.

Image 3: Up in the loft, we found why. The insulation hasn't been properly installed. It's bunched up, leaving gaps where heat escapes. That's why the ceiling below is cold.

The fix? Straightforward. Properly reinstate the loft insulation so the ceiling warms up. Once that's done, the condensation stops, mould can't survive, and a quick mould wash cleans up what's there. Job done.

This is exactly why thermal imaging matters. It shows you what's actually causing the problem instead of you guessing and worrying it's something expensive.

**Have you spotted mould on your ceiling and thought it was going to be a massive job? Drop your experience in the comments – you might be surprised how simple the fix is.**

14/05/2026

🚁 Drone survey findings: Three serious roofing faults that need immediate attention.

Image 1: Missing slate (red box). One missing slate is an open door for water ingress. Wind-driven rain will find that gap and work its way under the roof covering, spreading across the roof deck and into timbers below. Potential rot and structural damage if not addressed quickly.

Image 2: Poor slate overlap at the wall edge. Slates should overhang the wall by at least 50mm to shed water clear. Here they sit flush with the wall, meaning water runs directly onto the masonry instead of being directed away. Classic cause of water pe*******on and damp in the top course of brickwork.

Image 3: The chimney pots have been removed and capped flat. This stops air moving through the chimney breast, trapping moist air inside. That stagnant moisture migrates into the surrounding brickwork, causing hidden damp in rooms either side of the chimney.

These three faults work together. Missing slate + poor overlap = water getting into the roof structure. Capped chimney = moisture trapped inside. Result: perfect conditions for damp, timber decay, and structural issues.

Don't wait. Get your roof surveyed and fixed. Small investment now saves thousands in remedial work later.

**Quick question for roofers and homeowners:** Have you seen chimneys capped off like this? Why do you think a roofer would remove the pots and cap it flat? Drop your thoughts in the comments – I'm curious what you've experienced.

09/05/2026

09/05/2026

🔧 Two Moisture Meters, Two Different Jobs

When it comes to diagnosing damp and moisture problems, using the right tool for the right material makes all the difference. I use two very different moisture meters on every inspection, and understanding what each one does is crucial to getting accurate results.

The FLIR MR55 is a pin-type meter. You press the metal prongs directly into timber, and it gives you a precise moisture content reading. It's calibrated specifically for wood, so when you're checking joists, beams, or any structural timber, this is your tool. It tells you exactly how much moisture is in that timber at that depth.

The Extech MO257 is a pinless meter. It uses a high-frequency electromagnetic sensor that sits flat on the surface—no damage, no holes. This one is designed to scan across different building materials: masonry, plaster, concrete, brick. It helps you identify where moisture is present without being invasive. It's brilliant for initial screening and finding problem areas quickly.

Here's where I see surveyors getting it wrong: pin-type meters are often misused on solid walls and masonry. They're not calibrated for those materials, so you get false readings. Pin-type meters belong in timber. If you're checking a damp wall, you need the right tool for the job—which is why I use the pinless meter for masonry and the pin-type for timber.

Using the correct equipment for the correct material isn't just about accuracy—it's about giving your clients reliable data they can trust and act on. Get it right from the start.

Have you had a survey where you weren't sure if the surveyor was using the right equipment? Or are you a surveyor yourself—what's your go-to moisture meter and why? Drop a comment below, I'd love to hear what's working for you. 👇

08/05/2026

Have you seen cement falling off and wondered why? Have a look and let me know what you think.