Articles
Roof construction: rafters, battens, undertake, and ventilationTechnique · 8 minThe roof is the house's most important protection against weather and wind, and building it correctly is a core discipline for the carpenter. The article reviews the roof's structure from rafters to roofing, explains the difference between cold and warm roofs, and shows why the ventilation gap and undertake are crucial for keeping the structure dry. You also get an overview of the moisture requirements the Building Code (BR18) sets for roofs.Dampspærre og lufttæthed efter BR18Technique · 8 minAir tightness is one of the disciplines where modern carpentry differs most from the past. A leaky climate shell costs heat, creates draughts and can lead to moisture damage. The article explains what a vapour barrier does, how to install it correctly, what BR18 requires for buildings' tightness, and which errors most often make a house leaky.Construction timber: strength classes and CE markingMaterials · 7 minWhen wood must bear load, it matters which wood you choose. The article explains strength classes C18 and C24, the relationship to the old T-designations, and why load-bearing wood today must be CE-marked under DS/EN 14081-1. You also learn to read the stamp on the timber and to choose the right class for the job.Use classes and pressure impregnation of woodMaterials · 7 minWood rots if it becomes too wet for too long. The article explains the three use classes that describe wood's moisture exposure and reviews the NTR classes for pressure-treated wood. You learn when treated wood is necessary, and why using it where it is not needed is both wasteful and an environmental problem.Traditional timber assembliesTechnique · 7 minLænge før beslag og skruer samlede tømrere træ med udskårne samlinger, der låser sig selv sammen. Artiklen gennemgår de klassiske tømmersamlinger — tap og hul, bladning, kæmning og skarring — forklarer, hvor de bruges, og hvorfor de stadig er en del af faget i dag, blandt andet i restaurering og bindingsværk.Fall from height and fall protection in roof work.Safety · 8 minFall from height is one of the most common causes of serious and fatal work accidents in construction. The article reviews Working Environment Authority rules for work on roofs and construction sites, explains the principle of collective before individual protection, and shows how railings, scaffolds, and barriers must be used correctly.Wood dust, cancer risk and respiratory protectionSafety · 7 minWood dust is not just annoying — it is classified as carcinogenic. The article explains the limit value for wood dust, the difference between hardwood and softwood, the requirements for process extraction and respiratory protection, and why good dust handling is an investment in your own health in the long run.Safe use of circular saw and cut-off sawSafety · 7 minTable saws, cut-off saws and milling machines are among the machines causing the most serious injuries to hands and fingers in the wood trades. The article covers the most important safety measures: protective screens, push tools, proper instruction, process extraction and the personal protective equipment that goes with it.Manual handling and ergonomics in the wood tradesSafety · 7 minHeavy lifting, awkward working postures and repeated strain wear on the body in woodworking trades. The article explains the Danish Working Authority's guidance on lifting, where distance from the body determines how much you can lift, and covers the good habits that prevent wear on the back, shoulders and knees.Floor laying: solid wood floors, floating floors and subfloorsTechnique · 8 minThe floor layer is one of the three specialties of the carpentry construction apprenticeship. The article covers the most important floor structures — solid wood floors, floating floors and subfloors — explains blocking and expansion joints and shows why a wooden floor must always be able to work with seasonal moisture.Residual moisture and moisture measurement before flooringMaterials · 7 minOne of the most expensive mistakes in floor laying is putting wooden flooring on a subfloor that isn't dry enough. The article explains why residual moisture must be measured, what the 85% RH limit means, how drilling measurement is done, and why documentation is the floor layer's protection.Step sound and acoustics in floor constructionsTechnique · 7 minIn apartment buildings, impact sound — the sound of footsteps and falling objects — is one of the most frequent sources of neighbour complaints. The article explains the difference between impact sound and airborne sound, reviews the floor constructions that dampen best, and shows how the floor layer can influence the overall sound damping.Thatched roof: construction, materials and thatching techniqueTechnique · 8 minThe thatcher is the third specialization in woodworking trades' construction training and maintains one of Denmark's oldest craft traditions. The article covers thatched roof construction, materials, thatching technique with binding twine and rods, and ridge closure. You gain insight into what characterizes a durable, well-executed thatched roof.Fire requirements for straw roofs according to BR18Safety · 7 minThatched roofs place special demands in the building regulations because a burning thatched roof burns quickly and can spread to neighbouring buildings. The article explains the difference between fire-protected and non-fire-protected thatched roofs, the distance requirements to boundaries and neighbouring buildings, and the requirement for roof covering class BROOF(t2).Energy requirements and U-values in BR18Materials · 7 minThe Building Regulations set requirements for how much heat a building part may lose. The article explains what a U-value is reviews BR18's minimum requirements for roof external wall and floor and shows why requirements are stricter for renovation. As a carpenter the U-value is crucial for insulation thickness and structure.Measurement, drawing reading and material calculationTechnique · 7 minA building starts with the drawing and measurement. The article covers how to read a building drawing work with scale and dimensions and how to translate the drawing into a precise materials list. Accurate measurement is the prerequisite for both economy timetable and a result that fits.The journeyman's exam on timber trade construction educationCareer · 7 minThe education ends with a journeyman test demonstrating that you are a qualified craftsperson. The article explains how the journeyman test is structured for carpenters floor layers and thatchers what the practical and theoretical parts contain and how to prepare best.Career paths: from apprentice to master and building constructorCareer · 7 minAn education in the timber trades opens many doors. The article provides an overview of career paths after the journeyman certificate: from journeyman and journeyman's assistant to independent master further to building constructor or other further education and how the EUX path gives direct access to continue studying.