My driveway is about 16 years old. The builder used wooden spacers between sections and they are rotting away, allowing water to get in, and weeds to sprout. A little Roundup kills the weeds, but I want to remove the remains of the boards and fill the gaps with some sort of sealant.
Someone told me there is a product that will adhere to the concrete, but remain flexible.
Anybody know what I should use? CB