Green roof

Safety technology


The company vision of “a city filled with gardens” is the perfect expression of the owners’ thinking and approach, and their staff and partners are working steadily on implementing that concept. We are convinced that good intentions are not enough: you have to act to make the environment friendlier, healthier and greener. We contribute to our partners’ efforts to create a green environment by offering individual products and custom-tailored services.

Our company

DIADEM® develops, manufactures and markets green roof systems and ancillary products as well as DiaSafe® safety systems.

Our Services


Green roof

Green roofs and green gardens create a human value in which the flora and fauna get a whole new living space, which has a positive effect on health and well-being. These green surfaces provide recharging and relaxation directly in the living environment, but they also have significant ecological and economic significance. Important ecological advantages of green surfaces include the retention of rainwater, the relief of the sewerage network, the maintenance of the natural water cycle, the improvement of the microclimate, and the provision of the ability to absorb harmful substances. The ecological benefits are also realized in economic benefits, among other things in the reduction of sewerage fee costs, in the increase of the quality standard of the living space, in the increase of the thermal insulation capacity, thus in the energy saving.


Safety technology

A safe working environment must be created for all persons working at heights, including protection from falling from a height. It is the responsibility of the employer and / or the owner or operator of the building to provide this protection during work. Architects must also take this safety requirement into account when designing. All DiaSafe® systems comply with the latest relevant European Union standards and regulations.


Our latest posts

DiaLog planter family- large, decorative and modern

DiaLog indoor and outdoor planter family

The DiaLog planter family products are decorative accessories for modern buildings, suitable for both indoor and outdoor use. DiaLog – many-sided... read more

Diadem zöldtető egy görög épületen

Diadem® green roofs – the green overheads cost reduction

Increasing energy costs can be reduced also with installing green roofs. This technical solution has favourable consequences not only for... read more

Az A.P.P. Kft. szakembere a Diadem® zöldtetőkről ad tájékoztatást.

Seminar focusing on DiaSafe® fall protection

Our foreign partners, who were guests of our first seminar this year, mainly received information about the DiaSafe® fall protection.... read more

Az A.P.P. Kft. elnyerte a Felelős Foglalkoztató Díjat

The employer responsible behind the DIADEM® brand

We won the Responsible Employer Award As a distributor of DIADEM® products, we are delighted to have started this year with... read more

This is what happened to us in 2022. – We are looking forward to seeing you in 2023.

Exhibitions GalaBau Our green roof systems as technical solutions were a splash of colour at the international Galabau Fair held in Nuremberg.... read more

Extensive Green Roof with Rock Wool

Look at our video on the project on our YouTube channel: Balaton project The construction of an extensive green roof combined with... read more

A Lovable Green Roof Expert

We can be proud of our company not only as an expert in green roofs and as a family-friendly workplace,... read more

Diadem leaders present themselves in front of a professional audience

Conference in Budapest The leaders of Diadem® gave a presentation for a professional audience at the Green Building Structures Conference, held... read more

This is the time for green roofs – Huge storm in Western Hungary

This week, a huge storm passed over the area of Gyor, Hungary, tearing trees, fences. Caused destruction that has not... read more

News of the Green roof-World – Professional Practice

Green roofs can help regulate a building’s internal temperature, reduce stormwater runoff, and mitigate the urban heat island effect. Green... read more

News of the Green roof-World – Green roofs may soon be required on all new buildings in New York City

Green roofs cost $20 to $30 per square foot, but the city has incentive programs that will help pay for... read more

Warehouse moving

Dear Partner, we would like to is to inform you that our warehouse will be moved to a new location... read more

News of the Green roof-World – Green roofs are sprouting up on buses

As more cities are trying to incorporate greenery into urban living, green roofs have been sprouting up in different places,... read more

News of the Green roof-World – Australia

It's a bold vision for Australia's future. The grey roofs of city buildings transformed into a green canopy. City councils —... read more

News of the Green roof-World – Green Roofs Absorb Rainwater and Grow Food

WASHINGTON — Rainwater is essential for life. To help with that initiative in the nation’s capital, a team at the University of... read more

DIADEM® GreenMagic story and workbook

At DIADEM®, we consider it important to draw the attention of future generations to the importance of green roofs for... read more

Merry Christmas!

The August winner of ‘My Green Roof’ drawing competition is

Congratulations to Gergő Kerekes to the August winner of our 'My Green Roof' drawing competition advertised in our ‘Zöldvarázs Foglalkoztató... read more

Our showroom is officially complete.

Our showroom is officially complete, where everybody can get a foretaste of our products over a cup of nice coffee... read more

DIADEM® roundabout in Győr, the city of APP Kft.

Whenever we work on a project, we always present the world with some flora and fauna. We have done it... read more

DiaSafe® Guard in Germany, as well!

In the previous month we visited Tettnang, Germany to give a hand installing a DiaSafe® Guard Straight system. The system... read more

Green roof at DIADEM® centre.

The sales department could not bear the neglected old roof at DIADEM® centre and decided to do some physical... read more


Representatives of IFD (International Federation for the Roofing Trade) have visited the centre of DIADEM® ... read more

BAU Münich 2017

Last month we visited the exhibition of BAU Munich to introduce our new safety technology products and our new pedestals,... read more

A worthy ending of the year, 2016

We had a brilliant year, so we said goodbye to 2016 in style! Fancy venue, delicious food and last... read more

…and the seminars continue

…and the seminars continue. This time Maschinenring Česká republika and Schatzl & Jungmayr visited us to get more information... read more

A seminar for the Danish Byggros

Between the 21st and the 23rd of September we had a seminar for our Danish partner, Byggros and its clients... read more

Earth Day at APP Kft

Earth Day is celebrated on 22nd April all over the world. Our company has been able to celebrate it for... read more

21st APP Kft Birthday and International Women’s Day

It was the 21st time that we celebrated our birthday with a small gathering. Since our birhday is sharing the... read more

APP Kft at Dach+Holz trade fair

Between the 2nd and the 5th of February 2016, the international Dach+Holz exhibition was organised in Stuttgart, Germany, where APP... read more

Green Roof seminar at APP Kft

Between the 28th and the 29th of January, 2016 we had a two-day-seminar about DIADEM® green roof systems for the... read more