The long term performance of Virginia Lime Works Traditional Lime Products is dependent on many factors. Of the many issues that must be dealt with (such as workmanship, proper mixing, absorption control), the climate requirements are just as important.

Virginia Lime Works Traditional Lime Products are products that cure over a long period of time. Proper curing in the right climate conditions will ensure a correctly installed lime mortar a long life. The primary requirements for climate are as follows.

The key to working with lime mortars is to allow the mortar to cure in natural state. Keep the mortar in a cool humid environment to achieve greater performance.
Harsh Drying Winds: Harsh Drying Winds can lead to rapid evaporation of the mortar which could cause the mortar to dry to quickly. Protect work with damp burlap or canvas.
Heavy Rain: Heavy Rains could over saturate your work which could inhibit the carbonation process (which is how lime mortars achieve their long term strength. Protect work with burlap, canvas, and/or plastic.
Direct Sunlight: Direct Sunlight and extreme heat can lead to rapid evaporation as well. Protect with damp burlap and canvas.
Freezing & Frost: Protect damp mortar from freezing in frost by either working in a climate controlled environment (which may include sheeting scaffolding and running heat to form a heated enclosure) or protect with insulation blankets. When working with traditional lime mortars you are working within the confines of the traditional building season (Mid March through Mid to Late September). If you are working in freezing conditions make proper arrangements to protect your work.

Temperature Requirements:

 The ideal temperatures for working with lime are between 40° F and 85° F. Below 40° F there is the potential for frost damage and freezing and the set of some of our hydraulic lime products may be slower. Above 85° F and there is the risk of the mortar drying out too quickly and the set of our hydraulic lime products may be faster. To help in the performance of our products try to ensure that the temperature is in a good working range. And remember, "If the craftsman is comfortable, the wall is comfortable."