| There are three common methods to clean your | | | | removed. However, one thing to be kept in mind |
| flat roof. However, all of them have their pros | | | | while using this method is that you should keep |
| and cons and accordingly you should find out | | | | the spray wand tip close to the area to be |
| which method is more suitable for your flat roof. | | | | cleaned, something like 6 inches from the surface. |
| Most of the roofs are stained by algae and | | | | It is a very environment friendly way of cleaning |
| require regular cleaning to keep them looking | | | | your flat roof. It also saves you from investing |
| good. Your worries would have been multiplied | | | | your money in chemicals as required in other |
| with a roof with shingles. But as flat roofs mostly | | | | ways of cleaning your flat roof like chlorine |
| do not have shingles, there is no need to worry | | | | solutions or sodium hydroxide base solutions. |
| about them. | | | | Another way to clean your flat roof is with the |
| The biggest problem with flat roof is of stagnant | | | | help of chlorine solution washes. This procedure |
| water after rainfall. Though most of the flat roofs | | | | takes shorter duration to clean your flat roof. It |
| are slightly slanted, which is of course not | | | | requires much lesser time to rinse as compared |
| noticeable, yet water stagnates and becomes the | | | | to the other two methods. As a result the roof is |
| cause of growth of moss and algae on it. If the | | | | saved from a lot of wear and tear due to |
| moss or algae infected parts of your roof do not | | | | prolonged hours of washing and cleaning. |
| receive sunlight early in the morning then this | | | | However, chlorine is toxic for some people and |
| algae does not die, instead it grows with the help | | | | some plants as well. So care should be taken to |
| of morning dew that has settled on your roof, | | | | keep them away when you are carrying out this |
| further aggravating your problem of an unclean | | | | procedure to save them from spray runoffs. |
| roof. | | | | Another method of cleaning your roof is based on |
| As said earlier, there are three ways in which you | | | | Sodium Hydroxide. Cleaners that have a base of |
| can clean your flat roof. A very common method | | | | Sodium Hydroxide are very effective as |
| is pressure cleaning. You can use a gasoline | | | | degreasers, but they need to be rinsed a lot as |
| powered pressure washer. It delivers 2.4 gallons | | | | compared to chlorine solutions. This is not only |
| of water per minute and as a result releases a | | | | time consuming but also involves a greater risk |
| pressure of 2,500 pounds per square inch! You | | | | for your roof to be damaged. Sodium oxide is |
| can equip the spray wand of the pressure washer | | | | also toxic and should be kept away from coming |
| with a 25-degree tip as used for general purpose | | | | in contact with property or persons. Plants should |
| cleaning. You can get astonishing results with this | | | | be especially kept away from Sodium Hydroxide. |
| method of cleaning your flat roof. | | | | This chemical is also caustic and cause irreversible |
| All the dust, algae, moss and lichens that have | | | | damage to your roof if used in high levels. |
| covered your roof over a period of time will be | | | | |