Green roofs and roof terraces must be specifically designed to carry the additional loads that they will receive. The inverted roof puts the insulation above the roof covering. The insulation is then protected with a layer of ballast, chippings or concrete paving. This system is often seen in more commercial projects. The waterproofing layer is protected by the insulation, but it can be difficult to locate defects if there is a leak. Dry the water out using rags or towels and leave it to dry. Step two: Cut a 12-inch circle of rolled asphalt.

Where the span of a flat roof is more than 2.5m, strutting is required. This can be achieved by timber bridging or strutting in accordance with BS8103-3:2009. If there are numerous pools of water or it is a large area of pooling, you may need to replace the whole roof membrane.Bituminous roofing systems can be used for green roof build upswith a root resistant cap sheet which stops the roots from penetrating the waterproofing system. The membranes are made from bitumen and polyester. Prevention is always better than cure when it comes to flat roofs. So deal with little problems before they turn into big expensive ones. Our high quality Bauder Total Roof System offers a rangeof membranes, each with their own attributes, thatenable the specified solution to meet the needs of eachproject. When a green roof is added, the BauderPLANT Ecap sheet is used (BTGRS).

Acrypol Plus is an acrylic resin that’s dispersed in a solvent so it looks like a semi-liquid paste. When dry it turns into a tough elastic overlay that stops any moisture from moving through it. Its chemical structure is designed so that even trapped moisture can evaporate safely away, so you’ll avoid any blistering. This particular product also has added fibres that interlace together, helping it to fill and bridge gaps, while still remaining flexible. Acrypol Plus is suitable for: Torch-on’ flat roof felt comes in roll format. In the manufacturing process, a base felt is pulled on rollers through large tanks of bitumen mixes until saturated with a tar-like bitumen mixture. The result is a roll of water-resistant yet breathable material. Acrypol System 15 has a tough acrylic resin at its heart, but as part of its 15-year long-lasting solution, it also comes with the Acrypol Bedding Coat into which you incorporate the rot-proof reinforcing mesh scrim, which makes it even more flexible and durable. Acrypol System 15 is suitable for: As you can use System 15 on practically any existing roof membrane, it means you won’t have to replace any roof structures. That’s perfect for commercial properties as it means the business can carry on as usual. How to apply Acrypol System 15:There are many types of insulation that can be used on a flat roof – often the choice of insulation is guided by U-Value requirements and compatibility with the roof type and waterproofing system chosen. A flat roof is never truly flat. It must be designed to include a fall to allow water to be evacuated effectively from the roof. Building regulations suggest a minimum fall of 1:40 for a flat roof. Different waterproofing finishes will require a different flat roof fall. For example sheet metal materials can be laid with a fall of between 1:60 and 1:80. It is best to consult wit the manufacturer of the waterproofing solution chosen to ensure the correct fall is designed into the flat roof. Try to do your flat roof inspection after a period of rain. This will help you spot any areas of ponding (big puddles) and highlight any drainage issues.

A waterproofing and anti-slip solution in one, Acrypol Quartzdek contains real quartz granules that you sprinkle over a tough waterproof coating, all sealed and bonded together with a final layer of resin. Acrypol Quartzdek is suitable for:

Unfortunately, there is no easy fix to this. You’ll need to get a professional out to look at it and find a solution. Any gutters and downpipes must be sized to suit the flat roof size and local conditions in accordance with BS EN 12056-3. The slope of the roof should be designed to slope toward the gutter and downpipes. This system offers a commercial alternative for thespecifier on a prudent budget. The system usesBauderPLANT E 42 cap sheet for green roofs (BauderflexGreen).