Hi, I have recently moved in to my new home, which is 20 years old. I've just been in the loft and noticed that I can see daylight in between a few of the tiles, above the felt. Its not a big gap and the wood batens beneath them are dry. Is this a problem I need to be concerned about? I'm just wondering whether to call a roofer but with lockdown we aren't too keen to have anyone in our house unnecessarily. Thanks for any advice.