Restoring historic buildings can be a challenge for a variety of reasons. First, it can be difficult to find the right materials to match the original construction. Second, the building may have been damaged over time, making it necessary to repair or replace structural elements. Finally, it is often necessary to bring the building up to current code requirements, which can be costly.
There are a number of ways to overcome these challenges, however. One is to work with a qualified restoration contractor who has experience with similar projects. Another is to research the building’s history and original construction methods to better understand what materials and techniques were used. Finally, it is important to work with local authorities to ensure that the restoration project meets all applicable code requirements.
https://www.nps.gov/tps/how-to-preserve/restoring-historic-buildings.htm
https://www.preservationnation.org/information-center/technical-assistance/technical-assistance-by-topic/restoring-historic-wood-windows/
https://www.oldhouseonline.com/articles/restoring-historic-homes