CEDAR RAPIDS — As the winter weather thaws in the coming weeks, more Cedar Rapids residents may look to make remaining repairs on their derecho-damaged homes.The city issued a record number of permits — about 10,000 directly due to the Aug. 10, 2020, storm that pummeled Cedar Rapids, doubling the typical annual average for a total of about 20,000, said Building Services Director Kevin Ciabatti.That amounts to a value of about nearly $100 million, but he added there probably are millions of dollars in damage that the city does not yet know about.For those preparing to do work on their property, the city has some tips on how to navigate the permit process.How does it work?Contractors need to obtain permits through the Building Services Department for significant roof or siding repairs, structural work or substantial interior construction.