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jon_banquer[_2_] jon_banquer[_2_] is offline
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Default Flat warehouse roof depression leaking

On Sunday, September 29, 2013 10:26:29 AM UTC-7, PrecisionmachinisT wrote:
"Ignoramus11700" wrote in message

...

On 2013-09-29, dpb wrote:


On 9/28/2013 8:29 PM, Ignoramus795 wrote:


I have a warehouse with a flat roof. It has two drains and is supposed


to be inclined uniformly towards the drains. However, between the two


drains, a depressed area appeared and water pools there. From there,


it leaks down into the warehouse.




I am looking for cheap workarounds to stave off roof replacement. I am


wondering how hard is it to add a roof drain and connect it to


existing drains. Will that help?




i


who hates flat roofs




Every flat roof has low spots eventually...




Cheap fix is probably the more expensive in the longer run.




Part of the cost of doing business is the facility; spend the money and


get it done correctly is my advice.




--






And what would be the correct way?






Call a roofing company, you cheapskate.



You may remember that before I became a machinist I use to own a lot of rental property. Many of the multi-family buildings I owned had flat roofs. I never had a problem because I always stripped the roofs and redid them. I used membrane roofing. With a little training it's very easy to properly install a modified bitumen roof. We use to call it burn down roofing because you heat the rolls with a torch as you kick them along... of course an idiot like iggy would find away to set the building on fire. :) You also use a seam sealer as well. When the roofs were finished I always painted them with a special gray paint meant to protect them from UV rays. This was many years ago but I preferred to use GAF's modified bitumen roofing materials back then. I never had a leak and we did something like 30 roofs like this.

http://en.wikipedia.org/wiki/Membrane_roofing

"These three application types of membrane roofing show distinct advantages over the previously more common flat roofing method of asphalt and gravel. In asphalt and gravel application, it can be very difficult to create a proper seal at all seams and connection points. This can cause many roofs to leak early in its lifespan, and require much more maintenance. When installed correctly, newer materials are either seamless, or have seams as strong as the body. This eliminates much of the leakage concerns associated with flat roofing systems. Repairs for asphalt and gravel roofs can be hard, mainly because it is difficult to locate the exact point of a leak. Newer systems can be patched relatively easily, and breaks and leaks are easier to locate. Originally asphalt roofing required a layer of gravel above it for two reasons. First, asphalt with direct exposure to sunlight degrades much faster, mainly due to the expansion and contraction throughout a day, and also the damage created by UV rays. Second, asphalt needs weight above to hold it down, because it sits on the top of a building, instead of being attached to it. Each of the three newer types of membrane roofing systems contain materials that resist expansion and contraction, as well as reflect much of the UV rays. Also, because these membranes either lack seams or have strong seams, what expansion and contraction does occur does not create leaks and breaks at these seams. These newer roofing systems are also attached directly to the top of a building, which eliminates the need for excess weight above."

There is nothing wrong with flat roofs if you're not a clueless moron like iggy often shows himself to be.