Averages for Oslo in January. Oslo is geographically located at the northern end of Oslo Fjord in Norway. The city is surrounded by forests, lakes, and mountains, which cover two thirds of Oslo. The largest island, closest to Oslofjord is Malmya.
Roofs: Slate, copper and tile roofs can last more than 50 years. Homeowners with wood shake roofs should expect them to last about 30 years, while fiber cement shingles last about 25 years and asphalt shingle/composition roofs last about 20 years, the NAHB found.Climate and weather conditions, such as snow, hail and hurricanes, can cut the life span of all types of roofs.omeowners with wood shake roofs should expect them to last about 30 years, while fiber cement shingles last about 25 years and asphalt shingle/composition roofs last about 20 years, the NAHB found.
No roof lasts forever, especially in harsh Florida climates, but there are ways to estimate how long your current roof should last. When estimating the lifespan of your roof, itâs important to take into consideration the state of your roof, especially if youâre not sure when or how it was installed.