Article index to building roofing.
Slate roof leaking.
Some slate companies advertised a slate roof that cannot leak yet was inexpensive easy to apply beautiful durable as time using a design which was soon found to be a disaster.
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A slate roof will last for many years and give good service.
At that point it s necessary to replace the slate that s giving problems.
However when it is not practical to climb up on the roof to fix a leak such as during the winter months you can repair a leaky roof temporarily from the inside if you can determine where the leak is occuring from the underside of your roof.
Once you locate the source of the water mark the area.
Index to related articles.
Identifying the true location of roof leaks in the attic.
Sometimes though there can be problems with the slate roof and a leak may develop.
If you have an attic the easiest way to spot the leak is to up there on a rainy day.
When it comes to joining onto a slate roof with tiles or different sized slates you will need a jointing valley or bonding gutter.
Water will reflect light so bring a flashlight along.
12 slates were placed with 9 exposure leaving 3 for headlap and 6 which was backed only by a cap sheet of 32 felt interlaced with the slates.
Some roof leaks are tough to locate.
Roof leaks must be repaired from the outside to ensure the problem is corrected.
How to join a slate roof to a tiled roof.
Often this is done incorrectly to save time and money by simply overlapping the roof tiles onto the slate roof this nearly always leaks sooner or later.
Sometimes the water shows up at a ceiling spot distant from the leak.
If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures.
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Slipped tiles or slates will be very easy to notice and can result in larger amounts of rainwater hitting the underlay and putting it under increased pressure.