While many of history’s greatest architects chose to adorn their masterpieces with architectural terracotta, this material is not widely used in new construction anymore. Also, many terracotta features that once made such magnificent structures are now deteriorated or completely destroyed. Fortunately, there are advanced materials, including fiberglass-reinforced terracotta, fiberglass-reinforced concrete, and fiberglass-reinforced polymer, that can be used to repair or replace the original architectural terracotta. The following tips should be kept in mind during terracotta restoration or renovation projects:
Matching the appearance of the original architectural terracotta is crucial.
When choosing a replacement material, it’s natural to consider price, weight, and durability. Perhaps more important than all this, however, is finding a material that can replicate the texture and color of the original terracotta. Otherwise, the repairs will be conspicuous.
All sections of damaged material must be removed and replaced.
When replacing architectural terracotta, it can be tempting to try to remove part of a piece or block to save time and money. However, this is not a good strategy and there will likely be problems with the remaining terracotta piece down the road. To do the job right, remove and replace the entire section that is worn or damaged.
Visible anchoring will reduce the attractiveness of terracotta architectural elements.
If you hire someone to replace the damaged terracotta, make it clear that you want to hide the entire anchor. While the anchoring is necessary to hold and secure the terra cotta, it should not be visible to passersby.
Do not try to re-anchor the architectural terracotta.
When the terracotta is loose or worn, some people may conclude that re-pinning the terracotta is the answer. However, because it is usually secured with interlocking assemblies, steel purlins, and mortar, re-anchoring is extremely difficult, and in many cases impossible. Instead, any damaged terra cotta should be removed and replaced.
Hire a professional to handle terra cotta replacement and repair.
Everyone likes to save money by doing things on their own, but unless you have a great deal of knowledge about architectural terracotta, it’s wise to hire a professional. If you complete the terracotta replacement or repair incorrectly, more repairs will likely be needed in the future. Items such as cornice and window frames made of architectural terracotta could also be potentially dangerous: if not properly anchored to the building, they could fall and cause serious injury or death.