Roof And Wind Load During Storm Papers

In order for a structure to be sound and secure the foundation roof and walls must be strong and wind resistant.

Roof and wind load during storm papers.

Asce sei 7 10 offers a complete update and reorganization of a metal roof system s wind load provisions to make them more understandable and easier to follow. One of the outcomes of these workshops resulted in the establishment of the roofing industry committee on weather issues ricowi. Load and pressure requirements are contained in section r301. The roof has two water barriers.

When the wind pressures the roof it lifts the sheathing off the roofs structure and frame. Another danger of high winds to your roof is lifting while the. The sheathing and the other part with shingles and tiles. With all that said if we were to rank the roofing materials from best to worst for coastal living it would go like this.

Asce 7 10 provides ultimate event wind maps with corresponding reductions in load factors so that the loads on the metal roof system are not affected. The sheathing is the fastened to the rafters it acts like a top layer of the roofing. Whenever there are high winds such as in storms thin metal roofs on sheds as well as concave roofs on huts are sometimes blown away. The corners the edges of the roof and the ridge line are especially susceptible to damage from high winds.

The 3 tab 60 mph to 70 mph wind uplift rated roof covering shingles will be ripped off and leaks will be inevitable. Architectural grade shingles rated to withstand wind gusts up 130 mph are your best bet for high wind areas. This can leave your roof exposed in those areas leading to leaks. The wind can get under a corner or small piece of the shingle and curl it or rip it off completely.

Following these storm events two workshops were devoted to identify and discuss roof wind uplift issues and solutions 4. Roof covering systems e g asphalt shingles clay or concrete tile etc are listed in section r905. Finally after developing a strong understanding of the destructive nature of these storms and common caused wind failures we analyzed the effect high speed wind storms have on the economy by examining insurance. Section r301 2 1 requires that roof coverings resist the c c loads listed in table r301 2 2 as a function of basic wind speed and roof slope.

When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds especially if the building is located in an area known for inclement weather. It is very important to understand how the roofing system act during the storms. Of the causes of failures and the types of products that failed was distorted 2 3.