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Leak in flat roof © D Friedman at InspectApedia.com Roof Leak Causes & Cures FAQs-2
Recent roof leak diagnosis Q&A

Roof leak diagnosis & repair questions & answers:

Diagnostic FAQs about finding and repairing the cause of roof leaks that show up inside or outside of buildings.

The first part of this article describes different types and causes of roof leaks - clues about how and where to look for the causes of a roof leak. The second part of this article discusses how we track an actual roof leak backwards to its probable source or entry point on the roof.

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Questions & answers on how to diagnose and repair leaky roofs

Novel handling of roof leaks using plastic bags (C) Daniel FriedmanThese roof leak questions & replies were posted originally at ROOF LEAK DIAGNOSIS & REPAIR - home . Be sure to see the advice given there.

On 2017-12-27 by (mod) - i have no idea what type of expert i should call.

a home inspector or a roofing contractor can help you

On 2017-12-26 by Maryanne

Thank you for the reply. However i have no idea what type of expert i should call. I have service masters arriving today to check for moisture in the walls not sure if they can trace the source.

I had a house and wind mid done in july when i bought the home

. If you can advise what expert i should call i will call right away. Because i am now stsrting to see formations appearing on my drywall and ever time i turn around i see another crack. Please help
Thank you

On 2017-12-25 by (mod) -

Maryanne

You'd need an independent onsite expert who is familiar with metal roofing and both installation errors and sources of indoor moisture, leak tracing, use of moisture meters, and similar tools.

You might find one using the page top EXPERTS DIRECTORY and then discuss your concerns with home inspectors who serve your area.

On 2017-12-24 by Maryanne

I just had a new metal roof installed along with an underlayment of poly stick. Several concetns all i mentioned to ownet who dismissed my concerns.

1 wood that wet on my roof was stacked togethet eithet in the pickup truck or on grpund getting wet

2 polysick did not completly stick including a latge bumb over garage

3 water came under metal in bathroom down the drywall by sky light in bathroom

4 water went behind soffit by baywidows and facia was knocked off leabong exposed wpod for several weeks.

Now i have cracked drywall bubbling paint and stains on my drywall and wall

How can i trace and prove yhis damage was created by the roofsr
G

On 2017-04-19 by (mod) - need proper edge flashing on low slope roofs

Phil,

I can't guess very reliably from just e-text, but indeed if the roof is very low slope or near-flat, and if the edge flashing is the wrong type (such as a gravel stop with a raised edge installed on an EPDM roof) it traps water sending it back under any seam that is not properly adhered.

As long as the roofer is backing his work, kudos to him, let him do what the thinks fixes the trouble, then test for leaks again - if there's no rain add your own water.

On 2017-04-18 by Phil

We've just had EPDM roof fitted to garage. Soon after fitting, when raining, water dripping from soffits at gutter end of garage. The roofer says problem with edging but surely if fitted properly this shouldn't happen. He's "fixed it" twice now but still dripping.

Last fix was to seal between EPDM and black edging covers, but still dripping. He now says will have to lift the edging and replace it. Any ideas please as to what the problem is. Thanks very much for your time.

On 2017-04-06 by (mod) - seal flashing under shingles?

Properly flashed a valley does not need to be sealed at its edges under the shingles, but on some low slope roofs that could become a problem and lead to such extra measures. If you need a detailed report you need an onsite roofing expert.

On 2017-04-06 13:33:36.284712 by cobus coetzee

the roof leak due to abnormal rainstorm and strong southeastely wind, rainwater was driven in between the roofplates and the valley which cause flooding in to the house . We seald the valleys where the plates and the valleys come together.The question is we requierd a detaied report for the reasons why the valleys are to be seald of.cobusjc@lantic.net

On 2017-04-05 by (mod) - Skylights in roofs were such a notorious leak source

Darn good question Richard.

Skylights in roofs were such a notorious leak source that virtually all modern manufacturers of skylights include in their skylight design a curb and curb flashing that both raises the skylight above the roof surface and provides properly-designed flashing to prevent leaks at the roof-skylight-side abutments. All the installer has to do is read and follow the installation instructions.

On 2017-04-05 by Richard

How can you insall a roof-over around a surface mount skylight and seal properly?

On 2017-03-28 Tim Glover said:

Great info. Thanks for sharing.

On 2017-03-25 21:34:52.174501 by (mod) -

See also

Hoff, J. "Equivalent uniform annual cost: a new approach to roof life cycle analysis." In Proceedings of the RCI 21st International Convention and Trade Show, Phoenix, AZ, USA, pp. 23-38. 2006.


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