Shingle Roof Roofing Layers Diagram

Roofing layers from the framing to the shingles.

Shingle roof roofing layers diagram.

The roof deck is the structural foundation base for the roof system and is usually made of wood or plywood. Measure the length of a shingle as it lies across the roof. 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 complying with the irc most roofing systems will require two layers of underlayment when the.

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. Underlayment in high wind areas i e where wind speeds are 110 mph or greater must be secured with. 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. Keeping a solid roofing layer of shingles is an important way to avoid water damage and leaks.

Roof covering typically of flat and rectangular shapes and made of various materials such as slate wood flagstone plastic metal and composite materials. Roof maintenance is a major part of any homeowner s responsibility. Laying shingles can be hard and hot work but the reward of an attractive watertight roof can be worth it. Look at this wood shake example from classic metal roofing systems.

Doing it properly will keep you without problems for 20 or 40 years. Most asphalt shingles are 3 feet 91 4 centimeters in length. Most often made out of plywood this roof layer is installed over the framing in a typical roof install. Underlayment is the second layer of protection for the roof.

It used to be that the only type of roof metal available was the flat panel or corrugated standing seam roof. It is a waterproofing layer made of regular felt stacked above the solid decking board and then completely covered by the shingles or other roofing materials. Roof slopes greater than 4 12 require only one layer of underlayment. When to consider re roofing.

You can usually see the underside of plywood decking from the attic. Roof slope is between 2 12 and 4 12. 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. A valley is defined as the area where two roof fields join to make an inward angle.

Synthetic underlayment helps repel moisture and provides. Now you can get nearly any style of roof shingle manufactured from metal. Ultimately it s best to work with a roofing professional to determine if your roof is eligible for re roofing. Once fixed the underlayment will help repel the moisture.

It provides structure by tying the trusses and joists together. Metal roofing has come a long way. For example there s a starter course of roofing shingles installed at the eaves before the roofing shingles you can see.