Shake Roof Cupping Curling

Curling also called cupping is the effect of a shingle or shake curling warping or otherwise looking distorted instead of the even flat look your shingles or shake should normally have.

Shake roof cupping curling.

Normal wear and age. Before the invention of mills in the 19th century most shakes were hand split from logs precut to the appropriate lengths. Distortion is a general term that includes cupping which occurs across the width of the shake or shingle and curling which occurs along its length. The species of wood shakes varied dependent upon what trees were available to the area.

Cupping is when the center of the shingle is concave or depressed so the tile forms a cup. Curling also called cupping is the effect of a shingle or shake curling warping or otherwise looking distorted as opposed to the even flat look your shingles normally have. However if you can see the underlayment under the shakes there is a greater issue and it is time to call your roofing contractor. The truth behind wood shake roofs.

More flat grain and defects. If this is occurring at your home you re probably wondering why it s happening. You ve likely figured it out curling shingles on your roof aren t a good thing. Cupping is caused by uneven moisture absorption and drying.

These shakes and shingles are particularly susceptible to cupping curling and splitting. Cupping curling and clawing shingles cupping curling or clawing shingles on your roof are a sign that something is wrong. Improper nailing nailing too high or too far in from the edge only worsens the problem. For wood roofs some curling the end of the shake point curl upward or cupping where the sides of the shake curl upward and form a cup is the result of natural weathering of your roof.

The air that is taken in is displaced through higher parts of the roof. Although it makes sense to want your cedar roof to look new and healthy a little curling is a natural outcome of having a cedar roof for an extended period of time and can even give your home some character. The benefits of wood shake roofs. Wood shakes are among the oldest types of roofs.

Allow us to explain likely reasons. If your shingles start to show signs of cupping or curling up at the edges it may be easy to point fingers at the manufacturer and say that the shingles themselves were manufactured poorly which can sometimes be the case especially if the roof is relatively new when it starts to fail. While it makes sense to want your cedar roof to look new and healthy a little curling is a natural consequence of having a cedar roof over time and can give your home some character. As wood absorbs moisture water fills the spaces between wood cells causing the wood to swell.