The CE marking became mandatory for construction products in 2013, but it does not tell the whole truth about the durability of roofing screws. The CE marking of many manufacturers is based on a standard that does not recognise painted screws at all, meaning that they are classified as suitable only for dry indoor air. In this article, we explain why the CE marking alone can mislead the buyer.

Reddish-brown rust marks can appear on a new sheet metal roof just a few weeks after installation. In most cases, the cause is not defective sheet metal, but scratches and metal particles created during installation that initiate corrosion. Read how the damage occurs and how it can be avoided with the right roofing screw and careful installation.

The most important task of a roof is to protect the building from the weather, and sheet metal roofing is in a class of its own in this respect. A properly coated and fastened sheet metal roof lasts for over 50 years, but its actual service life is often determined by a small component: the fastener. In this article, we explain why the roofing and roofing screw must last just as long.

Check the condition of your sheet metal roof once a year. These 6 points tell you whether your roof is in good condition and when the screws should be replaced. Perform the inspection yourself.

A metal roof lasts for decades when you maintain it properly. Here is how to clean debris from the roof and keep the roofing and fasteners in good condition for a long time.

No one wants a car with rusty and scratched body panels, yet the roof is often treated in exactly this way. The roof is one of the most expensive surfaces of a house, however, and it deserves the same care as a car. In this article, we compare roof and car care and explain why durable fastening extends the roof’s lifespan.

With modern coatings, a metal roof achieves excellent corrosion resistance and a long service life. A high-quality metal roof is easy to maintain, and its strength and watertightness remain intact for decades when it is fastened correctly. We have compiled seven reasons why a metal roof is a sensible choice.

A well-designed and properly installed metal roof can last up to 25 years without maintenance. A long maintenance interval does not happen by chance, but is the result of four crucial choices already during the construction or renovation stage. Read which four actions ensure your roof a long and trouble-free service life.

The fastening method for sheet metal roofing has slowly evolved from nails to screws, and this development has been necessary. The old nail fastenings from the 1960s and 1970s caused plenty of leakage problems and extra work for roof owners. In this article, we review the history of fastening methods and explain why the right roofing screw is crucial for the durability of the roof.

CEO Kimmo Riihimäki has spent over 22 years on Finnish roofs and has seen more than 10,000 roof renovations during that time. Years of experience revealed the same problem again and again: the roofing sheets held up, but the screws failed. This gave rise to the idea of developing a roofing screw that lasts as long as the roof itself.

Tuusulan Peltikeskus added the KINGI® roofing screw to its selection only after unit manager Sami Eemola had tested the screw himself. With extensive experience in roof installation, Eemola wanted to make sure that the promises were not merely sales talk. Read why he was convinced and how a selection consisting of one screw also makes inventory management easier.

Did you know that the coating on a roofing screw may be merely decorative and unable to withstand Finnish weather conditions for decades? Read how to identify the right fastener and avoid an expensive roof renovation prematurely.

Roofing screws should last as long as the roofing sheet. The patented three-layer coating and the water-shedding head design make KINGI® a truly durable roofing screw.

With KINGI® roofing screws, over 10,000 roof renovations compliant with regulations have already been carried out. Building regulations require roofing screws to have the same corrosion resistance as roofing sheets.