From floor plan to 3D building and energy class.

Toplinko is an in-house product of Tsunami Digital: a web app for the engineers, designers and energy consultants who calculate how much heat a building loses and gains. It turns a slow, rule-heavy part of their job into a guided process in the browser. We designed it, we built it and we keep it up to date ourselves, which means we answer for every calculation it produces.

Engineers draw the floor plan in the built-in 2D CAD builder or bring it in through the AutoCAD integration (DXF), and Toplinko recognises walls and rooms on its own. From the plans it assembles a 3D model of the building, floor by floor, with walls at their real thickness and windows and doors at their height, and colours the envelope by U-value so weak spots show at a glance. One click then runs heat loss and gain, energy class A+ to G, the nZEB check, condensation risk and summer overheating, and the plans and 3D views go straight into PDF and Word reports.

Heat load and energy calculations are detailed, rule-bound and repetitive. Done in spreadsheets or older desktop tools, they eat hours, leave room for mistakes and still need drawings and pictures pasted in by hand. Engineers needed one tool that follows the standards, reads the drawings they already have and produces the documentation for them.