Rusty Roof Valleys

They can last for more than 20 years but external factors can considerably shorten that period.

Rusty roof valleys.

A rusty valley on a tile roof which needs to be replaced typically where a valley is located on a roof roof valley replacements are fairly common especially on tiled roofs. Even badly rusted flashing can be renewed if it s caught early enough. First clean the debris out of the valley including sawdust nails and whatever else is in there. The flashing in the valleys of your roof depends on a smooth surface for rain to wash debris off your roof.

Roof one side of the valley running the shingles across it. Use a broom to sweep off the leaves and other debris. To clean and refinish a roof valley. If not maintained properly roof valleys can become clogged with leaves and other debris which can cause the metal to rust and the roof to leak.

With a clean valley you can lay down some peel and stick roofing membrane. In more rustic styled designs we see it used more with corrugated metal panels. This is because the old valleys used to be galvanised and they start corroding with time especially if they trap leaves. Believe it or not one of the most common causes for roof leakage is leafs.

However roofing felt s waterproofing ability is ruined the moment the asphalt shingles cedar slate tile etc. Lay one and two tab shingles as you near the valley so full size shingles will run across the valley. Wet leafs stick to the valley and corrosion leads to formation of rust bubbles. Felt tar paper some roofers offer nothing more than roofing felt as a valley liner.

Snap a chalkline 2 to 3 inches past the valley center on the top layer of shingles. Roof valleys are troughs that discard runoff water where two sections of sloped roof meet. Severely rusted flashing may warp curl or even develop holes exposing your home to the possibility of damaging leaks. A popular trend that has been occurring in mountain retreats and ranch style homes a corten roof offers a unique appeal to many homeowners.

The copper roof valley shown above cracked and leaked from thermal movement. Shingle the other side of the valley the same way. In modern metal roofing applications the trend tends to be using a weathering steel on a standing seam roofing panel. The flashing around vents chimneys and skylights prevents rain from leaking in.

Lifespan of roof valleys is relatively long. Rusty flashing is more than just an eyesore. The valleys on many older houses comprise layers of roofing paper which can deteriorate over time. The internal angle formed by the intersection of two sloping roof planes to provide water runoff.

Fold the top over the roof ridge and cut the bottom along the drip edge metal.