Abstract: A device for applying a strip of sealant from a roll to a surface comprises a shaft and a roller. The shaft has an end which is configured to be grasped by a user for pushing the device along a surface such as a roof panel, and the roller is rotatably supported on the other end of the shaft. The roll of sealant is supported on the shaft so as to enable the unwinding of the strip from the roll in response to a pulling force exerted on the free end of the strip. To use the device, the free end of the strip is first trained over the roller onto the surface with the strip between the roller and the surface. Thereafter, as the device is urged along the surface, the strip is unwound from the roll and pressed into engagement with the roof panel beneath the roller.