Knowledge Base
Guides and in-depth articles on drone inspection, thermography and surveying — written for property owners, managers and decision-makers. 25 articles, free from sales fluff and based on how the technology actually works.
Basics & methods
What is drone inspection? A complete guide
Drone inspection means a camera-equipped drone documents the condition of roofs, facades, solar panels or industrial facilities. Learn how the method works, when it is suitable and what you get.
Drone inspection vs traditional inspection — which fits when?
Comparison between drone inspection and traditional surveying with scaffolding, lifts or climbing: safety, documentation, cost and limitations — and when the methods complement each other.
Drones in municipal property management — applications and benefits
Municipalities manage large, mixed property portfolios on limited budgets. How drone inspection is used for schools, sports halls and public buildings — and what procuring authorities should require.
Rules & safety
Drone regulations in Sweden — what applies
The EU drone rules apply in Sweden: operator registration, remote pilot certificates, a 120-metre altitude limit and visual line of sight. Guide to the categories, camera imagery and professional flying.
Drone inspection in winter — what works and what needs planning?
Is drone inspection possible in winter? Yes — thermography of building envelopes often works best during the heating season. How cold, snow and light affect different types of inspections.
Drone inspection in ATEX zones — how the risks are managed
ATEX-classified zones place special demands on inspection work. How drone inspections are planned at facilities with potentially explosive atmospheres: risk assessment, work permits and zone management.
Roof safety during inspection and maintenance — rules and alternatives
Roof work is subject to occupational safety rules requiring fall protection, and the property owner is responsible for roof safety equipment. How drone inspection reduces the need to walk on the roof.
Thermography & moisture
How drone thermography works
Drone thermography uses a thermal camera that measures infrared radiation and reveals temperature differences on surfaces. Guide to the technology, radiometric data and what the method can reveal.
Finding moisture damage with thermal inspection — how it works
Thermal inspection can reveal moisture in roofs and facades through temperature patterns — without opening up the structure. How the method works, when it is reliable and how findings are verified.
Thermal bridges and heat loss — finding the energy thieves in the building envelope
Thermal bridges and heat loss increase energy costs and can cause condensation and mould. What a thermal bridge is, where they typically occur and how drone thermography maps the building envelope.
Roofs & property
How a drone roof inspection works — step by step
A drone roof inspection is carried out in four steps: planning, flight, analysis and report. Guide to what happens in each step, what is documented and what the report contains.
Drone inspection for housing associations — a practical guide
Guide for boards of Swedish housing associations (bostadsrättsföreningar): how to use drone inspection for roofs and facades, how the results strengthen the maintenance plan and what to consider when ordering.
Storm damage to roofs — how to document it quickly and safely
After a storm, roof damage needs to be documented quickly — for the insurance claim and to stop consequential damage. How drones are used for safe damage assessment without anyone going up on the roof.
Maintenance plans with drone inspection — from assumptions to facts
A maintenance plan is only as good as the evidence behind it. How recurring drone inspections are used to build the maintenance plan on documented condition instead of standard assumptions.
Common facade defects — and how to detect them in time
Cracks, detached render, frost damage, rebar corrosion and joint defects — a guide to the most common facade defects by material, why they occur and how to detect them before they become expensive.
Drone documentation for insurance claims — how to strengthen your case
When roofs and facades are damaged, the documentation determines how smoothly the insurance claim proceeds. How drone imagery is used before and after damage, and what property owners should consider.
Solar & energy
Hotspots in solar panels — causes, risks and how they are detected
A hotspot is an abnormally warm area in a solar panel indicating a fault: cell damage, shading, soiling or diode failure. How hotspots arise, the risks they pose and how thermography finds them.
Solar installation inspection — checklist for owners
Checklist for owners and managers of solar installations: what should be checked visually, electrically and thermally, how often — and when thermal drone inspection delivers the most value.
Wind turbine inspection with drones — how rotor blades and towers are inspected
Rotor blades wear from erosion, lightning strikes and cracking. How wind turbines are inspected with drones: common damage types, how the flight is carried out and why early detection pays off.
Surveying & 3D
What is photogrammetry? How 3D models are created from aerial images
Photogrammetry is the technique of creating measurable 3D models from overlapping photographs. How the drone-based process works — from flight planning and GSD to point clouds, orthophotos and 3D models.
How drone volume calculation works
Drone volume calculation measures stockpiles, quarries and excavations by creating a 3D surface model from aerial images and comparing it against a reference plane. How the measurement works and what affects accuracy.
What is an orthophoto? How the measurable aerial image works
An orthophoto is an aerial image that has been geometrically corrected so that it has a uniform scale and can be used as a map. How orthophotos are created with drones and how they are used in construction and property management.
How accurate is drone surveying? GSD, RTK and control points explained
Drone surveying can achieve centimetre-level accuracy with the right methodology. How GSD, RTK/PPK, ground control points and surface characteristics affect accuracy — and how to choose the right level for your project.
Construction documentation with drones — follow the project from the air
Drones document construction projects with recurring flights: orthophotos, 3D models and progress images for planning, quantity verification, communication and dispute evidence. How the approach works.
3D models of buildings — practical use cases
A photorealistic 3D model of a building can be used for damage surveys, design, property management and communication. Concrete use cases and what is required for a good model.
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