Shingle Roof Roofing Layers Diagram

Most often made out of plywood this roof layer is installed over the framing in a typical roof install.

Shingle roof roofing layers diagram.

For example there s a starter course of roofing shingles installed at the eaves before the roofing shingles you can see. Keeping a solid roofing layer of shingles is an important way to avoid water damage and leaks. Roofing underlayment is a layer of material usually synthetic or felt that adds extra protection on top of the roof deck and under the shingles. Metal roofing has come a long way.

A valley is defined as the area where two roof fields join to make an inward angle. Underlayment is the second layer of protection for the roof. So we ll start at the bottom of the deck and work our way up through all the roofing layers until we reach the shingles and sunshine above your roof. Roof covering typically of flat and rectangular shapes and made of various materials such as slate wood flagstone plastic metal and composite materials.

If your roof s width is not an even multiple of the shingle s length you will have a partial piece on one end of each row. When to consider re roofing. Synthetic underlayment helps repel moisture and provides. Look at this wood shake example from classic metal roofing systems.

If so you ll likely save quite a bit of money by leaving your existing roofing system in place beneath a new layer of shingles. The roof deck is the structural foundation base for the roof system and is usually made of wood or plywood. Doing it properly will keep you without problems for 20 or 40 years. Roofing layers from the framing to the shingles.

It provides structure by tying the trusses and joists together. Ultimately it s best to work with a roofing professional to determine if your roof is eligible for re roofing. Roof maintenance is a major part of any homeowner s responsibility. This will help determine how the shingles will lay on the roof width.

Roof slopes greater than 4 12 require only one layer of underlayment. Measure the length of a shingle as it lies across the roof. You can usually see the underside of plywood decking from the attic. Underlayment in high wind areas i e where wind speeds are 110 mph or greater must be secured with.

It used to be that the only type of roof metal available was the flat panel or corrugated standing seam roof. It is applied directly to the roof sheathing to protect the roof from the elements while shingles are fixed to the roof. Once fixed the underlayment will help repel the moisture. Most asphalt shingles are 3 feet 91 4 centimeters in length.

Ice water barrier this self adhering water proof and self sealing membrane is applied to the roof deck. Now you can get nearly any style of roof shingle manufactured from metal. Roof slope is between 2 12 and 4 12.