How to Install Felt Paper on a Roof
Installing felt paper on a roof is a crucial step in ensuring the longevity and integrity of your roofing system. Felt paper, also known as roofing underlayment, provides a protective barrier between the roof deck and the roofing material, preventing moisture from seeping into the home. This article will guide you through the process of installing felt paper on a roof, step by step.
Materials and Tools Needed
Before beginning the installation process, gather the following materials and tools:
– Felt paper (typically 15-pound or 30-pound)
– Utility knife
– Trowel
– Hammer
– Nails
– Chalk line
– Measuring tape
– Level
– Roofing nails
Step 1: Preparing the Roof
Start by inspecting the roof for any damage or loose materials. Remove any debris, such as leaves or branches, and repair any damaged areas. Ensure that the roof deck is clean and dry before proceeding.
Step 2: Measuring and Cutting the Felt Paper
Measure the length and width of your roof using a measuring tape. Cut the felt paper to the appropriate size, allowing for an overlap of about 2 inches at the edges.
Step 3: Applying Adhesive (Optional)
Some felt papers come with an adhesive backing. If yours does, apply the adhesive according to the manufacturer’s instructions. Ensure that the adhesive is evenly spread and that the felt paper adheres to the roof deck.
Step 4: Starting the Installation
Begin by laying the felt paper along the lowest edge of the roof, ensuring that it is aligned with the eaves. Press the felt paper firmly against the roof deck, removing any air bubbles.
Step 5: Nailing the Felt Paper
Using a hammer and roofing nails, nail the felt paper to the roof deck. Place nails every 8 to 12 inches along the length of the felt paper, ensuring that the nails are driven into the roof deck and not the felt paper itself. Avoid nailing directly over the ridges or valleys of the roof.
Step 6: Overlapping the Felt Paper
Once the first piece of felt paper is installed, lay the next piece on top, overlapping the previous piece by 2 inches. Ensure that the edges of the felt paper are aligned with the roof’s edges and valleys.
Step 7: Cutting Around Obstructions
If there are any obstructions, such as vent pipes or chimneys, cut the felt paper around them using a utility knife. Be sure to leave a 2-inch overlap on all sides.
Step 8: Finishing the Installation
Continue installing the felt paper in the same manner, working your way up the roof. Once the entire roof is covered, inspect the installation for any gaps or loose areas. If necessary, adjust the felt paper and re-nail as needed.
Conclusion
Installing felt paper on a roof is an essential step in maintaining a healthy roofing system. By following these steps and using the proper materials and tools, you can ensure that your roof is protected from moisture and other elements. Always consult with a professional if you are unsure about any aspect of the installation process.
