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Flat Roof Maintenance
Flat roofs are those with a pitch of less than 15 degrees. They can essentially have a long life span, but only if they are correctly maintained. Life span will also be dependent on the flat roof materials used and you will generally find that felt or asphalt-based roofs are less durable compared to more modern materials such as Duro-Last.
To prevent your roof from damage you will need Lighty Roofing & Construction to carry out flat roof maintenance on a regular basis and at least every Spring and Autumn, or following heavy weather conditions.
Flat roofs traditionally built from felts can be more vulnerable to splitting, blistering, ponding and felt movement. We have put together a short guide to these issues and what you can do to prevent substantial damage through regular flat roof maintenance.
Splitting can be caused by freeze thawing, stress or pressure, water ponding or simply poor workmanship. It can be that the surface has not been cared for appropriately and solar-reflective paint or stones have not been maintained, or the surface has been damaged due to walking on it.
Ponding water is described by the roofing industry as water that is left on a roof for 48 hours or more after a rain. This will void most roof manufacturers warranty. Although ponding water should be removed it does not void the Duro-Last warranty.
Blistering happens when air is trapped between the layers of felt or the felt substrate. When the air heats it causes air pockets which can lead to puncture when the blister breaks particularly if it is a larger blister and located on a join. If this happens then water can pass through the roof. The area will need to be cleaned and fixed professionally to ensure a waterproof seal is maintained without the presence of moisture.
By regularly checking your roof you can remain vigilant and avoid a major problem, keeping insurance claims to a minimum. Through regular maintenance you can work on a preventative basis to avoid flat roof repair, which will be much more cost effective in the long run.
Hire Lighty Roofing & Construction to safely remove dirt, leaves and debris from your roof, gutters and drains on a regular basis. Don’t forget that flat roof maintenance should include ensuring that all overhanging tree limbs are regularly cut back, allowing 3 feet clearance to avoid blockage and damage due to fallen leaves and branches as well as removing any unwanted vegetation or growth on the roof itself. Be aware that vegetation and moss can indicate that water is being held in sufficient quantity to allow growth which will ultimately lead to internal leakage.
After a heavy storm check your roof for damage and ponding and clear away any leaves and debris. Snowfall can also cause significant damage and should be shoveled off the roof carefully to prevent this. Freeze thaw will split the surface so it is important to check for this which can be caused by expanding ice.
Internally you should regularly check your ceiling for any stains caused by water damage and leaking to ensure that you take corrective action as soon as possible in order to limit damage.