Articles
History of the roofing tradeHistory · 8Keeping rain out is one of construction's oldest tasks. Get an overview of how roofing has developed and what the roofer does today.The roofer's daily work and techniquesMethod · 9A good roof is built from below. Get insight into the pre-work the actual laying of roofing felt and sheets and how a waterproof membrane is created.Materials and tools in roofingMaterials · 8The roofer works with multiple layers and different materials. Learn about roofing felt, membranes, and the equipment used to lay a tight membrane.Safety and quality in roof workSafety · 8Roofers work high up and often with hot processes. Get a grip on the most important safety considerations and what characterizes a good-quality roof.Specialties and career as a rooferCareer · 8Roofing encompasses many types of tasks, from residential buildings to large commercial roofs and special membranes. See what directions you can take.How you deliver care that respects the patient's wishesTrade matter. · 10 minIf you want to be a roofer, it is good to know what awaits. Here we review the entire path from basic course 1 and 2 through the main course to the journeyman exam — how long it takes, how you alternate between school and workplace and what access requirements you must meet to get started.PLACEHOLDER_8Trade matter. · 9 minOne of the big advantages of a vocational education is that you get paid while you learn. Here we explain how apprentice pay works for a roofer's apprentice, why it increases through the course, and what it means that the trade is covered by a collective agreement — without guessing specific amounts.Rules, authorisation and certificates in roofingSafety · 9 minRoofing is not an authorized trade like electrical or plumbing — you don't need special government permission to lay roofs. But there are still clear rules and certifications you need to know, especially when working with open flame, heat, and at height. Here you get the overview.Work environment safety and ergonomics for roofersSafety · 10 minRoofing is a physical trade that takes place at height, in all kinds of weather, and often with heat and open flame. Most injuries and accidents can be prevented if you take them seriously from the start. This article goes into depth on fall protection, fire safety, ergonomics, and the habits that keep you healthy for many years.The roofing industry today: jobs, demand, and the futureCareer · 9 minWhere do you actually end up as a trained roofer? And are there jobs to get? Here we look at what workplaces exist in the industry, what drives demand for roofers, and how the trade is developing — from new construction and renovation to energy renovation, green roofs and solar cells.Further and continuing education: what you can build on the journeyman certificateCareer · 9 minThe journeyman's certificate is not a dead end — it is a springboard. As a skilled roofer there are many paths open if you want to develop further, specialize or change direction. Here you get an overview of further training, the master's path and the advanced educations you can take on top of the trade.Hot work: the fire regulations behind the gas torchSafety · 8 minWelding of roof membranes with a gas torch is classic hot work and one of the most common causes of construction site fires. That's why there is a fixed set of rules: DBI's fire-technical guideline 10, requirement for a certificate, a signed agreement form and fire watch after the work. The article reviews what you must do before, during and after, and why smoldering fires are the trade's most insidious enemy.SBS or APP? Material science of modern roof membranesMaterials · 8 minModern roof felt is not just felt with tar — it is polymer-modified bitumen on a strong reinforcement. The two main families are called SBS and APP and they behave very differently in cold, heat and sun. The article explains the difference, the structure of two-layer systems with underlay and overlay and why SBS dominates in the Danish climate.Fall number is a measure of enzyme activity; too low fall number gives sticky crust, too high gives dry crust and pale crust.Safety · 9 minFall from height is the most serious accident risk in roof work, and the Working Environment Authority's rules on roof work are therefore very specific. The article reviews requirements for flat roofs under 15 degrees, protection at the roof edge on sloped roofs, requirements for railings per DS/EN 13374, and why personal fall protection is always last resort.BR18 and the roof: what the Building Regulations requireRules · 8 minA roof must not only be tight — it must also be legal. Building Regulations BR18 set requirements for the roofing's fire properties for protection against moisture and for rainwater to drain away from the building. The article covers the most important BR18 requirements from the roofer's perspective and explains what the BROOF(t2) classification means in practice.Roof drainage in practice: fall, wedges, and the fight against poolingTechnique · 8 minA flat roof is never completely flat — it must have a fall towards the drains, otherwise water collects in puddles and ages the roof prematurely. The article covers the industry's recommended fall of 1:40, wedge-cut insulation as a tool to create a fall on flat decks, correct positioning of roof drains and emergency overflows, and checking drainage at handover.From TOR to PTM: the trade's guidelines and quality assuranceRules · 7 minFor over 35 years, the TOR guidelines from Tagpapbranchens Oplysningsråd (Roofing Paper Branch Information Council) were the roofing trade's common reference work for materials, construction and execution. A competition case put a stop to them, but the need did not disappear — today the material is continued in, among other things, the PTM guidelines. The article tells the story and shows how guidelines are used correctly in everyday quality assurance.Green roofs and inverted roofs: the membrane under the living layerTechnique · 9 minGreen roofs are sprouting in cities because they retain rainwater and improve the urban environment — and beneath each one of them lies a roofer's membrane work. The article covers the layer structure in a green roof, the principle of the inverted roof with insulation on top of the membrane, requirements for root protection and why waterproofness testing before covering is essential.