Wind Damage To Metal Roof

What makes a metal roof perform well in high wind conditions.

Wind damage to metal roof.

The second one is 9 years old. High winds can cause damage to your roof even without hail or other harmful weather. Improper usage handling and storage by installers. A deck with interlock metal slate roofing was exposed to extreme winds and water recreating the effects of driving rain from multiple directions.

Inadequate space allotted for thermal expanding and contracting of the panels. Metal roofs and composite shingles. If the edges are well fastened and proper trim is used wind has very little chance to enter the space beneath the panels which minimizes the chance for inflation. When roofing materials are damaged by winds the edges or loose spots have wind get underneath them and push up the shingles or other material which then gives the wind more ability to grab on to them and push them up and off the roof creating a sort of chain effect as the roofing materials peel off.

But the metal roof is only one of the factors. According to the national roofing contractors association nrca most wind damage to a roof starts on the edge. The smooth surface of the panels promotes good laminar flow and helps limit turbulence both of which reduce the chance of the metal roofing components being pulled loose and blown off distorted or displaced. Changes to the structure s original form that puts tension on or moves the panels.

There are several types of damage high winds can cause to your roof including leaks missing shingles and gutter problems. Signs of wind damage on a roof include loose or missing shingles chimney issues curling or peeling shingles granule loss damaged soffit or fascia and indoor leaks. When a major storm is coming document the roof s condition before and after. Every 2 years after 15 years.

High winds can also cause tree branches to fall and damage a roof. We live in new jersey and had wind damage to our roof during a storm last week. We have two existing roofs on the house. Anywhere the roofing material is even a little bit loose the wind can get below it and push it up thus giving the wind more to grab onto next time and creating a chain peeling effect.

They say a picture is worth a thousand words. Our unique 4 way interlocking design of our roofs stand up to the most extreme elements including class 2 hurricanes by actually locking each shingle on all four sides. Metal panel roofs that are of good quality and properly installed generally do well in high wind events. The pictures below dramatize the importance of exercising best practices when designing and installing a standing seam metal roof in hurricane country.

Frequent stress from coil slitting cutting and rollforming panels. Spots of granules missing from your shingles. Metal roofs on the other hand not only stay in one piece they also excel at protecting against wind driven rain.