In other words skylights stack lines chimneys and valleys are the most common places to see a leak if the tiles themselves are in good shape.
New slate roof leaking.
Often the financial aspects of installing a new roof or repairing your existing roof are so overwhelming that a healthy roof may seem like an impossible goal.
Repairing a roof that needs replacement is wasteful because sooner or later the homeowner will have to pay for a new roof.
Some slate suppliers recommend this heavier felt for all underlayment not just at the eaves.
Leaking slate roof the signs for the most part broken slates are normally visible from the ground 90 of the time quite often i have a customer ring me to tell me i have a slate missing or a slate has fallen off the roof and onto the floor.
Traditionally 30 felt was used at eaves as insurance against this problem.
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Some roof leaks are tough to locate.
Restore or replace your slate roof.
If you don t want to wait for rain to look for the leak try bringing the garden hose up on the roof.
Sometimes the water shows up at a ceiling spot distant from the leak.
This decision should be made after careful consideration.
Ice dams at roof eaves can be a serious leak source on slate as most other roof systems.
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The majority of roof leaks especially on new roofs take place around protrusions in the roof.
Run the water over the place where you think the leak might be located.
If pools of water then build up in the area where a tile or slate has slipped a leak into the inside of the roof is increasingly likely to happen.
Often water runs to openings in the vapor barrier such as at ceiling light fixtures.
Homeowners may want to restore or repair leaking roofs to minimize the cost incurred.
Have a helper stationed in the attic with a flashlight looking for moisture.
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.
A particularly common cause of a leak is through the incorrect installation or damage to the flashing at junctions on the roof.