Roli GmbH , based in Basel, is a regionally active and specialized service provider focused on leak detection and waterproofing inspections for flat roofs . We support property developers, architects, facility managers, and insurance companies in the reliable analysis and maintenance of flat roof systems – from single-family homes to industrial buildings. With years of experience and the use of advanced technologies, we are a trusted partner for precise, non-invasive leak detection , technically sound inspection methods , and clear, structured documentation . Our guiding principle: Find the root cause – not just treat the symptoms . Our Core Services Flat Roof Leak Detection Using cutting-edge technologies such as moisture sensors, smoke tests, thermography, and electronic pulse systems, we locate weaknesses quickly and accurately – even in complex roof constructions. Waterproofing Integrity Testing For both new and existing buildings, we verify the performance of waterproofing systems before handover or use – with fully documented, protocol-based and independent testing procedures. Roof Inspection with Report We carry out structured condition assessments of flat roofs, including photo documentation and maintenance recommendations – ideal for damage prevention or decision-making in renovations. Expertise Across All Roof Types Experienced in cold roofs, warm roofs, inverted roofs, green roofs, and walkable/drivable roof systems. Who We Work With • Architects & General Contractors – for acceptance tests or quality assurance • Property Managers & Homeowners – for water damage diagnostics, leak assessment or renovation planning • Insurance Companies & Surveyors – for neutral and technical evaluations • Industrial & Commercial Clients – for routine roof checks and safety assessments Locally Rooted – Available Nationwide Our core service area includes Basel, Basel-Landschaft, Aargau, Solothurn, and the Northwestern Switzerland region. Upon request, we are also available throughout Switzerland. Flexibility, short response times, and clear communication are our daily standards. Why Roli GmbH? • Independent & Objective: We don’t sell sealing materials – we identify causes. • Technically Reliable: Use of professional-grade tools and methods • Documented & Transparent: You receive clear inspection reports, including testing protocols if needed • Client-Focused: Personal consultation, transparent process, and fair pricing Roli GmbH – We make flat roofs understandable. A hidden leak? We’ll find it – before it becomes expensive.

Our team includes highly qualified staff who have been passionately pursuing their profession for many years. In addition to experienced specialists, our team also includes young, committed employees. The harmonious cooperation of these diverse talents leads to an efficient work group. Whether it is about watching our carpenters on the roof, doing interior work or laying floors, or watching the joiners in the kitchen, bathroom or making furniture - you will see that each individual does their work with complete dedication and satisfaction. In our company you will find everything under one roof, made by a highly motivated team. It is a matter close to our hearts to pass on our knowledge to the next generation. For this reason, we enthusiastically train young apprentices in the professions of carpenter and carpenter. There is hardly anything more beautiful than watching these young people grow up with their tasks, duties and rights.

Von der Beratung über die konkreten und transparenten Offerten über die äusserst fachgerechte, genaue und kompetente Herstellung mit den termintreuen und präzisen Montagen sowie den korrekten Rechnungen konnte ich diese professionelle Firma kennenlernen. In der ganzen Zeit wurde ich über den Stand der Dinge informiert. Super! Danke. Herr Mühlemann geniest mein volles Vertrauen und ich werde bei einem nächsten Bedarf sicherlich auf ihn zurückkommen. Ernst Heggli, Beringen

In the Basel and Baselland region Well-considered proportions, form-giving structures and expressive plants give gardens character. With a keen sense for your wishes, we develop a concept for the design of your garden. We also devote ourselves to the implementation and maintenance with attention to detail. Green handwriting We have been tending some gardens for 30 years. It is a wonderful feeling to see a garden grow and flourish. Quality, consistency and an eye for what is feasible are criteria that are important to us; in the selection of plants and in the design of architectural elements. PRODUCTS, SERVICES • Horticulture • Tree care • Decking • Walls • Plantings • Ponds/Biotopes • Playgrounds • Private garden

Höcker aluminum halls The aluminum structures of the festival halls are loaded onto specially equipped trailers from Vögtli Festhallenvermietungs AG. The entire assembly of the lightweight aluminum parts is carried out manually and is built from the ground using a modular system. The easy handling reduces the risk of accidents during assembly and disassembly many times over. Our festival halls have a width of 4, 6 and 8 m, with a truss spacing of 3 m as well as 10, 15, 20, 22.5, 25 and 30 m, with a truss spacing of 5 m, which is gradually extended in length to 90 m can be. This means we are able to provide festival halls for 20-3,000 seats and fully meet the desired requirements of our customers - including for your festive event. We would be delighted if you chose one of our festival halls. We would be happy to provide you with further information and wish you a successful celebration. Pagoda Pointed Tents Silhouette tents in 4 standard sizes Vögtli silhouette tents create a special ambience. The mobile pavilion can be assembled into any groups thanks to the modular system. The construction is ideal for a wide range of applications: as party and VIP tents, for presentation and sales events, as a reception pavilion, aperitif pavilion or vehicle shelter at exhibitions. Individual equipment Depending on requirements, the pavilions are equipped with one or more side curtains, if desired with transparent arched or lattice windows or with white curtains. inner sky Depending on your wishes, we can equip the pavilions with an inner sky. This gives your event a special ambience. Desk tents The desk tents are ideal for professional caterers, for street sales for clubs and tent rental companies and as barbecue tents. 3x3m 3x4m Seckseck tents The look and appearance of a tent plays a crucial role, especially at high-class events. The extravagant roof shape with outstanding features makes this tent the center of attention everywhere. No matter whether for weddings, long-term catering or a trade show, this square pagoda fits into any setting. Corner dimensions: 8.00 m Key dimension: 6.90 m Side height: 2.40 m Ridge height: 5.45 m Planning: white or with window The circus tent You are planning a club party, a wedding party, a company party, a sporting event, an anniversary, an exhibition, a seminar, a congress, an advertising event, a cabaret performance, a village or city festival, a banquet but your party room is too small and the gym is too small sober and the festival area too wet? At the location of your choice, under the starry sky of our circus tent, the right ambience for your event is created as if by magic – whatever the weather! Whether laughing and dancing, yodeling or juggling, grilling or simply consuming: there are hardly any limits to your activities. 20 x 24 m Storage tents for flexible solutions Scaffolding made from aluminum box profiles with piping grooves All connecting parts made of galvanized steel Covering made of high-gloss PVC material coated on both sides, translucent and flame-retardant in accordance with DIN 4102/BI, M2 Roof tarpaulins and gable triangles in PVC, piping on both sides Sides and gable optionally with PVC covering or radiant trapezoidal sheet metal Depending on the version with sliding gate made of steel / aluminum, tarpaulin gate made of PVC material, double or single-leaf doors Design and wind loads in accordance with DIN standards, international and European building regulations. Construction site roofing Scaffolding made from aluminum box profiles with piping grooves All connecting parts made of galvanized steel Covering made of high-gloss PVC material coated on both sides, translucent and flame-retardant in accordance with DIN 4102/BI, M2 Roof tarpaulins and gable triangles in PVC, piping on both sides Sides and gable optionally with PVC covering or radiant trapezoidal sheet metal Depending on the version with sliding gate made of steel / aluminum, tarpaulin gate made of PVC material, double or single-leaf doors Design and wind loads in accordance with DIN standards, international and European building regulations. Assembly and disassembly Depending on the size of the festival hall, we will provide you with 1-2 fitters for the assembly period (self-assembly). For the hall: 20 x 50 m, approx. 3-4 hours For the hall: 25 x 70 m, approx. 5-6 hours. For the hall: 30 x 90 m, approx. 8-10 hours. The time required for dismantling is about the same. If requested, our company will be happy to take care of the complete assembly and disassembly for an additional charge. Our modern dance stages are installed in the desired size just as easily and quickly as the festival hall. Our stage curtains provide the necessary and desired festive setting for your performances. Festive furniture We also have the right Festmo for all types of tents and for every occasion

Gruner All according to plan. Gruner is a leading engineering, design and planning consultancy in the construction industry. In the business areas buildings, infrastructure, and energy, we support our private and public clients in all project phases from strategic planning through construction to commissioning and management of buildings and infrastructure. In doing so, we combine services from a comprehensive range of competencies such as structural design, geotechnics, general planning, building services, energy production and distribution, road and rail construction, civil engineering, environment, safety, security, and spatial planning in order to offer optimal and sustainable solutions. With more than 1.100 highly qualified employees in over 30 offices in Switzerland, Germany, Austria, Serbia, Georgia, Turkey and Tajikistan, as well as at countless project locations worldwide, we are always close to the customer and where development and construction are taking place. Thanks to interdisciplinary cooperation, we set new standards in engineering methods and the application of digital processes. We are constantly evolving in step with our customers. Gruner is an independent family business headquartered in Basel/Switzerland and we are proud that we have been providing innovation and inspiration since 1862.