10/21/2025
In Texas, weep holes in brick cladding should typically be 1/4 inch to 3/8 inch in diameter (or equivalent open area for rectangular or slotted vents) to allow proper drainage and ventilation while preventing pest entry. The International Residential Code (IRC) and local Texas building codes, such as those referencing the Brick Industry Association (BIA) guidelines,
It’s gonna be cold soon and the mice are going to be thankful. 👍