Anchorage Grapples with Snow-Induced Roof Collapses
Anchorage is facing an increased risk of roof collapses due to the unprecedented snowfall this winter. In an article by Alaska Public Media, Ross Noffsinger, Anchorage’s Acting Building Official, acknowledges that the current snow load on residential homes is around 20 to 25 pounds per square foot, well below the typical capacity of 40 pounds per square foot. However, he warns that the potential for more snowfall, combined with the risk of ice damming on roofs, could lead to concerns about structural integrity.
Noffsinger also emphasized that the city is particularly concerned with commercial buildings, specifically those with flat roofs constructed with parallel wood chord trusses. The recent collapse of Spenard Builders Supply’s truss plant in December highlights the vulnerability of such structures. This is not the first time the state has dealt with a collapsing roof problem. Just last year, after a slew of roof collapses struck Anchorage and the Mat-Su. A reported five roof failures hit Southcentral Alaska last winter, including, an Ingra Street shop, the Palmer Library roof, a gym and a business shop in Taku-Campbell, and a car shop on Dowling. In the Alaska Public Media report, Jon Schultz, a building inspector with Accurate Inspection Services, urges residents to consider shoveling their roofs to prevent the formation of ice dams. These dams can cause leaks and other damage as melting snow accumulates along the roof’s edge. Anchorage is already surpassing its average seasonal snowfall and there are still winter months ahead. According to KTUU, by the time of this writing, the current total of 87.1 inches of snow in Anchorage is on pace to set a new winter snow record in the city. Anchorage added close to 5 inches of snow on Sunday, January 7th. So, residents are advised to take proactive measures. Noffsinger suggests safely removing snow from roofs and considering the option of hiring a private contractor if needed. Anchorage residents are encouraged to exercise caution while shoveling their roofs, ensuring that piles are not created on the roofs to avoid overloading specific sections. Additionally, residents should be mindful of not piling snow against their houses or on top of gas or electric meters. In light of these challenges, it is crucial for residents to monitor their roofs regularly, especially as the city approaches its heaviest snow loads in March and April. By taking preventative measures now, Anchorage can mitigate the risk of further roof collapses and potential injuries. |