Metal Vs Shingle Roof Valley

Asphalt shingles come in two varieties the newer fiberglass shingles and traditional.

Metal vs shingle roof valley.

The metal is usually pre painted to best complement the shingles color blend. In order to shingle this kind of roof valley a roofing professional has to install both roof faces at the same time which is quite slow. And while some homeowners may prefer the aesthetics of a closed valley the heavier and thicker the shingle the less likely it is to lie flat across a joint. Entire width of new metal flashing properly extends over fascia at bottom of roof.

Shingles in the valley will not last forever and will have to be replaces during a re roof project but the nails will not leak. As the asphalt shingles are installed over the roof deck the shingles are extended into the valley. Closed cut valley fully replaced with new metal valley flashing. Both the once piece w valley and 3 piece t valley are super prone to installation error minor carelessness on the part of an installer could lead to huge roof leaks as valley is the weakest area on any steep slope roof meaning valleys are most likely to leak compared with other sections of the roof.

I personally install all my valleys with valley metal. The shingles will wrap the nail head through the heat of a couple of summer days and will be nice and flush. If you opt for a less costly option such as corrugated or ribbed steel roof your cost will likely fall within 5 50 to 7 50 per square foot or 550 to 750 per square installed depending on the metal thickness gauges for steel or mils for aluminum and the quality of paint finish polyester or acrylic vs. Shingles being removed in closed cut valley.

Fold the top over the roof ridge and cut the bottom along the drip edge metal. Metal roofing comes in a variety of styles largely dependent on the metal used and coatings applied aluminum is a metal that needs no coating steel on the other hand requires specialized treatment to prevent rusting other metals used for roofing are copper zinc stainless steel and titanium. For an open valley a sheet of metal usually steel sometimes copper is fastened to the roof deck. Unlikely but it can.

However these shingles are not run entirely through the valley area but rather the center of the metal valley is left exposed. A woven valley shingle installation has other drawbacks including that they are slow to install especially in cold weather and more difficult to repair than the other types. Devin mahdi lewisville roofing. Ice barrier underlayment installed in roof valley.

All shingles removed from closed cut valley. Kynar 500 or hylar 5000 for the system being installed as well as your home s. Roof mastic applied along sides of valley flashing.