What do you think will happen if you mention the concept of flat roofs to a typical homeowner? They will likely shudder at the thought of flat roofs. The reason for this reaction is due to the reputation of flat roofs since the 1970s. During this time period, many homeowners experienced leaks in their flat roof constructions as well as a tendency for their flat roofs to cave in during strong storms. These problems are often associated with the design of flat roofs from the 1970s era.
Flat roofs that were built in the 1970s were created with materials and designs that have since become obsolete. These flat roofs were prone to leaks and did not feature a design that allowed for proper water drainage. So, these roofs had a lifespan of 10 years at most. Flat roofs built today are constructed using vastly different materials and designs compared to those built decades ago. For Flat Roofs Hampshire, consider https://www.randsroofing.co.uk/roofing-services/flat-roofs-hampshire/
Modern flat roofs use the most advanced materials available in the construction industry. These materials are very durable and can withstand the elements for years to come. Also, they can flex with the slightest movement of the roof without cracking. In addition, these materials are both water- and UV-ray resistant, making them ideal for flat roofs. Also, the design of the flat roof is such that water will drain from the roof rather than collect. Finally, the space above the modern flat roof can be used in any way that the homeowner desires, such as installing solar panels, growing a green roof garden, or creating an outdoor patio.
Weighing up the pros and cons today
Much of the old reputation of flat roofs overlooks their genuine advantages. Cost is the most obvious. A flat roof is cheaper to build because it needs fewer materials and less labour, which makes it a sensible choice for anyone working to a tight budget.
Maintenance is another point in their favour. Flat roofs are easier to inspect, so problems can be spotted and dealt with quickly, before they become destructive and expensive to repair.
There are still drawbacks to consider. Some people simply do not like how a flat roof looks, so it is worth studying pictures of similar homes with flat and pitched roofs before deciding. Insulation also needs thought, as flat roofs are less well equipped to keep heat in, and in the UK climate this should be planned into the design from the start. Fitted properly by a professional, a flat roof can be a practical and attractive option.
Simple habits that keep a flat roof sound
Part of the reason flat roofs earned a poor reputation is that they were misunderstood. No roof is truly flat. Every so called flat roof has a slight fall towards one corner or a very shallow dome, so water can run off.
That fall also means leaves and debris collect around the drainage points, so regular care makes a big difference. Check the roof often for cuts or scratches that could let water in, and clean it as much as you can so the outlets do not block.
Keep the surrounding gutters clear too, because a blockage there can back up into the outlet on the roof itself. Finally, make sure the roof has a good seal. Traditional felt has largely been overtaken by modern polymers and waterproof coatings, which give a much more durable finish.
Common flat roof problems to check for
Modern flat roofs have plenty going for them. They are economical and quick to build, easy to access for inspection and well suited to solar panels. They do need more regular checks than pitched roofs, because water cannot drain away as naturally.
Standing water is the main problem. If water takes more than a few days to drain, damage can start, and autumn and winter are the times to check most often. Poor drainage or a roof laid without enough fall makes it worse, since flat roofs are meant to have a slight slope. Snow and ice can cause similar trouble.
Thermal movement is another issue. Repeated heating and cooling makes materials expand and contract, so they must be able to cope without cracking. Blistering happens when moisture is trapped in pockets under the membrane and lifts it away, often growing worse in the heat of the day. Flashing at junctions should also be checked regularly, as poor materials or bad fitting let water in and can encourage fungal growth.