 He says a leak detector or two in the attic might be a good idea because they'll notify your phone. If it detects a leak. Also, he says, be aware with a lot of insurers, some damage caused by heat isn't covered. Mike Murillo, WTOP News. Well, we told you about how this week's record-setting heat led to a kink or a bend in the metro tracks near the Crystal City Metro Station. This evening, Metro says repair crews work through the night. They fix that bend so trains no longer need to be single-tracked through that area. Some trains are moving more slowly than usual because of the heat earlier yesterday.