Low Pitched Slate Roof Leaking

Hi we had ground floor lean to extension to rear of house with four velux windows six years ago.

Low pitched slate roof leaking.

However at a low roof pitch components of a roof system may be working at the limit of their capabilities meaning more chance of failure. Areas such as eaves abutments and window surrounds require careful detailing to ensure a durable and watertight roof system. Roof leaks can result from installing laps against the natural flow of water incorrect flashing and adhesion failure at the seams. The first time we had heavy.

Chances are the leakage is probably due to the flashing not the roofing material itself. Recommended materials to use on low slope roofs. A common reason for a leaking pitched roof is an inadequate pitch for the selected roofing product. In the past slates were thought to be effective at 22 5 degrees and this was set as the minimum acceptable pitch.

This article defines low slope roofing and describes low slope roofing materials choices installations inspection defects roofing repairs and product sources. I e water leakage under extreme weather conditions. Low slope roofing inspection design leak detection repair procedures. The risk of leaks increases when the roof suffers physical damage or thermal shock.

We discuss the following. Single pitch new extension tiled roof leaking. Overall option removing the slate i m not sure that s possible building control passed it but as you can see it s very low pitch. If it s a built up roof the leak may occur along the flashing details.

In the case of a low pitched roof you may have no alternative but to remove all the roofing just to track down the problem. Start low soaking the area just above where the leak appears in the house. If a leak is difficult to find enlist a helper and go up on the roof with a garden hose. The first photo shows the roof without the velux kerb those were added later as the windows were leaking through the sash but i m in a difficult situation at.

Some roof tiles for example are only effective above 25 degrees while others work well below 20 degrees. Leaking roof low pitch. Low pitched slate roof is leaking possible solutions.