Somerset County Roofers: Article About Installing Underlayment For Tile Roofs
While roof tiles can prevent rainwater from infiltration, they still need a roofing underlayment positioned between the roof sheathing and the roof tiles to create an additional water barrier. Because of its waterproof nature, the most common underlayment used alongside roof tiles is felt underlayment. While felt underlayment has an installment process similar to that of other underlayment materials, homeowners are advised to hire professional Somerset County roofers to accomplish the task.
Before laying out the roof underlayment, the roof must be cleaned. Debris and other waste materials are cleaned off the surface of the roof sheathing. Some underlayment can be fixed using roofing glue, but roofers may use nails to make any necessary repairs. Before the underlayment can be installed, drip caps are placed at the bottom and along the sides of the roof.
The actual process starts with the unrolling of the roofing underlayment. Then, it must be cut into appropriately sized pieces. The pieces are centered at the roof valley and then nailed into the roof sheathing using galvanized steel nails capable of penetrating at least 2 centimeters into the OSB or plywood sheathing. The nails are spaced about 30 centimeters apart.
Some roofers use a different procedure when laying roofing underlayment.
The roofers from Peter W Smith Construction of Somerset County NJ would be happy to answer any question you have about roof repair or siding.
They unroll about 1.5 meters of underlayment horizontally on the roof. The underlayment is adjusted to level the roof edge using a carpenter's level. The bottom edge is then secured using the same nails mentioned in the previous step. The top edge is also secured with a nail spacing of at least 70 centimeters apart.
Roofers continue to lay roof underlayment and nail it on to the roof's sheathing until the entire surface is covered. The next process is the removal of excess underlayment, which may be hanging off of the roof's edge, vents, and corners. Roofers use a razor knife, a tool specifically designed for this purpose, to complete the process.
Once the roof underlayment has been trimmed, roof components, such as the chimney, will still continue to protrude out of the roof and, therefore, need to be sealed up. In the case of a protruding chimney, metal flashing is installed around the chimney and sealed with caulk or special sealants.
After the obstacles have been sealed, small slices of the underlayment are used to cover them up. They are also placed over the areas where the underlayment and flashing meet. Once this process is complete, roof tiles are then secured to the top of the roof underlayment.