Uneven Roof And Deck Warping

Initially bad ventilation warped this roof deck.

Uneven roof and deck warping.

While a wavy roof is aesthetically unpleasing does it affect the performance of the roof. The plywood might also become warped itself if it becomes wet which could happen in the case of a roof leak. Occasionally the buckling is caused by poor workmanship wrong materials or possibly by a problem with the structure itself. Roofs buckle because either the roofing underlayment has wrinkled or the wood deck itself has shifted for some reason.

Simply pry up one or two rows of decking install the flashing and replace the deck boards. 2 roof deck is warped and the shingles are all wavy causing the water to leak under the shingles. Roof shingles are not lying flat. If however the decking runs perpendicular to the house you ll have to raise every deck board to expose the ledger.

Wood is soaked and leaking. Frost on the plywood. One can see clearly lots of ripples bumps all over the roof but one section is much worse than the rest. An improperly installed roof deck or the sheets of plywood that are underneath your roofing material could result in the plywood shifting.

Those ripples bumps can be pressed down easily which suggests that there is space between the shingle and decking i e shingles are not properly supported by the decking where there are ripples. Deck boards including perimeter boards used for picture framing should be installed so they extend past the outer rim joists by less than 2 lengthwise and 1 width wise. Movement of the roof deck. It s also important to confirm that the ledger is bolted tightly against the house along its entire length.

Why this should cause mold warping and uneven color i don t know. The shingles on your roof serve a dual purpose. A wavy roof is an unsightly thing. If a roofer installs a roof deck without ensuring the rafters are even warping often occurs.

To determine if a wavy roof is more than just an eye sore you must determine the reason for the wave. In some places the fascia boards warped to such an extent that the screws sheared off leaving a gap of over an inch. It immediately detracts from the appeal and look of a home. Lumpy bumpy or curling shingles that do not.

The thick duralife fascia boards should then be installed below the decking boards and fastened to the outer rim joists using 8 x 2 stainless steel capped. Ripples or waves on the roof surface are a sure sign that the shingles or decking has probably buckled. Investigating a warped and wavy roof. Underlayment must be dry and flat for roofing to stay in place.

They give the roof a finished look while forming a protective seal.