No, roofing nails should not go through the roof. When installing a roof, the nails are meant to penetrate the roofing material and secure it to the underlying structure, such as the roof deck or sheathing. However, the nails should not extend beyond the roof surface.
Proper nail placement is essential for a secure and watertight roof installation. The nails should be driven into the roofing material at the designated nail zones or areas specified by the manufacturer. These zones typically have reinforced areas where the nails can securely attach the roofing material without penetrating through the roof.
If the nails are driven too far and extend through the roof, they can create holes that allow water to penetrate, leading to leaks and potential damage to the underlying structure. It's important to use the correct nail length and apply the appropriate amount of force when driving the nails to ensure they are properly secured without going through the roof surface.
For any roofing installation or repair, it is advisable to consult professional roofers or follow the manufacturer's guidelines and instructions for the specific roofing material being used.