Tips on locating a leak in a flat roof

Finding Leaks In Flat Roofs
All roofs are very difficult to repair if they develop a leakage. However flat roofs are all the more difficult to repair. It is so because it is very difficult to find the leakage. If the roof is sloping then it is not at all difficult to trace the source of leakage because the slope on the roof makes the water flow downwards. But in the case of flat roofs there is no slope for the water to flow downwards and thus the leaked water may travel a great distance and direction from the source of the leakage. Hence it is not unusual at all to find water at a place which is far away from the source of leakage.
Finding the source of leakage
When you are looking for the source of leakage on a flat roof then you should always try looking for it when the roof is dry and cool because only then you will be able to inspect the roof carefully. Some of the common places where leakage develops are the flashing that is located near, and on the connecting points on the roof. You must always check the flashing very minutely and lookout for any loose pieces, gaps or cracks that may have formed. You must also insure that the flashing has been installed and integrated in such a way with other roofing materials that it causes the rain water to move in the opposite direction instead of flowing towards it.
If you notice that there is nothing wrong with the flashing and it is in perfect shape then you may have to look at other places to find the source of leakage. One of the places where you may find the source of leakages is the low area in the roofs where water may accumulate. You will see that they usually look like dirt rings and each one of them gradually becomes smaller as it reaches its lowest point. When you have found the lowest point you should minutely check the point for cracks, splits or holes that may be causing water leakage and thus be a source of it.
Another common place you must look for the source for leakage is the seams of the roof. It has been noticed that every time two different or similar pieces of roofing materials are joint together, the seam always turns out to be an automatic weak point where leaks are likely to form in the future. The seams are susceptible to forming cracks and splits with the passage of time. Even the best sealed and done up seams weaken and deteriorate. Hence you should never overlook any seams while you are searching for the source of water leakage.
If you see that in spite of your best efforts you have not been able to find the source of leakage on you flat roof then as a last resort you shall have to use a hose and water to find it. You should move in a very systematic way. You should start with one section and not the entire roof in one go. You should let the water run for at least 15 minutes without a break. The time factor is important because if you don’t allow it to run for at least 15 minutes then the water will not flow towards the source of leakage and not start leaking.
Hence if you are searching for the source of leakage in the flat roof then be prepared to have plenty of patience and pay a great deal of attention apparently minor issues. With this attitude you should be able to successfully locate the source of leakage in flat roofs.
At Atlanta Area Roof Specialist Inc.we take great pride in maintaining customer satisfaction for all types of new roof installations, and roofing repair work for residential and commercial roofing accounts.
If you are looking for a Atlanta Roofing contractor, please call us today at 404.835-7663 or visit our website for further information at http://www.atlantaroofspec.com
Watch this video about flat roof contractor
A professional’s touch on a flat roof leak repair. Water was intruding through a bad seam in a ponding area of the roof. After filling the void with 1/2″ celetex insulation board (he tapered the edge’s with his foot for a smoother transition to the existing roof) he fastened some 75lb base sheet and then applied the Johns Manville granulated modified bitumen cap sheet. As you can see, this roofer has bled a few seams in his day (he has a tattoo of a propane torch on his arm!). He torches the … Please help to answer the question about flat roof contractorHow do I know if the roofer I hired for a flat roof did a good job?
I recently had a flat roof installed on my garage. My problem is the workmanship of the job. The roof does not leak, but looks awful. The aluminum roof coating looks terrible. It looks like someone took tin foil and put it on my roof.
Also, there are numerous crinkles, tool marks, footprints, etc. There is also an area next to a corner which is built up with a different material, is bulging and looks terrible. Also, before the roof was done there was a depression which held water. The contractor told me this area would be “built up” (this was not specified in the contract). Now, this area still holds water and appears not to have been “built up” as he said.
At this point, I have not paid the balance due. Should I pay the man?
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January 19th, 2010 | by roofing contractor |
By Trey on Jan 19, 2010
It depends entirely on how strong the addition was made. If the roof is just 2×4 studs instead of 2×6 or greater, you have a good chance of problems. And if the waterproofing of the flat surface may break if you try to use it to walk on a lot in all kinds of weather and poke through with chair legs, etc.
The usual solution if the strength is there is to build the "patio" almost like you were making a deck near the ground: a strong sill atfached to the house and pads to rest on the roof and spread the force. Then the waterproofing of the addition stays intact and the deck can be level even if the roof has some slope for drainage.
If the floor of the house is very close to the level of roof, then there isn't really space to do that above. I would suggest getting someone to design it or ask for estimates based on a design being described to you and see how much trouble they think it will be.
By thegurlupstairs on Jan 19, 2010
Make sure it's in writing as to how they'll charge if water damaged sheeting is found, ie, time and materials, or will you supply the material and they repair. They won't know if there is damage until the roof is exposed.
Absolutely ask for references.
Check the BBB.
Don't hesitate to get more than one estimate.
Find out what kind of roofing material they plan to install…is it good quality or some cheapy stuff? That info should be included in the contract and can be verified at your local lumber yard.
How will the roof be loaded? Is a truck with a boom bringing it in? If so, how will the contractor ensure that your yard won't be hammered.
Who will be responsible for getting rid of the debris? Easier for them to do it…just get it in writing!
Ask that it be in writing that they "sweep" the yard (with a magnet) to get rid of any nails that fall to the ground. Even if they tarp the area, nails bounce
As far as meeting with the foreman, it might not be a bad idea. Good to know beforehand if you'll be able to communicate with him.
Best to you!
By mealking on Jan 20, 2010
A metal roof is not a good idea. Ponding water will leak through the seams even if they are soldered because expansion and contraction will open up the seams. Ponding water will also cause the steel roof to rust prematurely.
A better option is a rubber membrane roof. Warranties as long as 40 years are available. A reputable roofing contractor will make quick work of the roof job and be around for any problems that may develop … in other words, they will be around to take care of any warranty problems.
Good luck with your roofing project.
By starlight on Jan 21, 2010
Definitely a rubber roof requires a great deal let maintenance and will last 15 to 20 years. This will be a true water proof roof system. Paper and tar is old method and will last 7 to 10 years before needing replaced. UV rays effect both but tar faster. Long term Rubber. Short term is moving in 5 years paper and tar.
By bellshouse1 on Jan 21, 2010
You need to check with your local Registrar of Contractors to see if there are any open or previous infraction by the builder. You will also be able to see how long the builder have been in business for (the longer the better). When comparing estimates, you need to make sure you are comparing apples to apples. A $20k spread is huge for a small project so somehow, one of the bids are missing services, whether it is demolition, hauling fees, materials to match existing, etc. If you're putting concrete tiles on the new gable roof, does it happen over a large expanse of windows/sliding door? Any of those builders include additional support on the header and foundation due to the increased load?
Just compare the differences in terms of included scope of work from each builder. By doing so, it may give you a better understanding of the price discrepancies.
By arjzv on Jan 23, 2010
You can do one of two things. Either ask a competitor to come inspect the roof and give you an itemized list of what's wrong with it *just tell them what happened and that you are looking for someone who can show you what's wrong and what needs repaired* or you can contact your insurance company who can set you up with someone who can check it for code. Once you get the documentation showing the lack of work done you can put in writing your complaint and demand it be redone. If they refuse, you have it in writing that you are unhappy with the product and also paperwork showing what damage is done. Take pictures! That way if they DO try to sue you for the money you can have that on your side. They won't get a DIME if you're in the right.
Do NOT pay until all the above has taken place or they can claim you damaged it etc. you wouldn't have paid if you weren't satisfied etc. and you won't get it fixed by them.
By StoneRoof on Sep 16, 2010
Wow!