How Do You Felt A Flat Roof

How to lay felt on a flat roof.

How do you felt a flat roof.

These applications are ideal for flat roofs or protective surfaces under roof level decks. You will be looking for any decking that has rotted or bowed. Once measured and cut line the first piece of felt up so that it over hangs the edge of the roof on three sides by enough to cover the side pieces of the roof. Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system.

Keep attacking this initial spot until you get underneath all layers of the roofing and above the decking below. When you are felting a sloped roof you start at the bottom and work your way up so that rain pours over the top of the laps and not under them. These thick layers of roofing felt are installed by heating the back of the felt with a butane torch and then carefully applying it to the roof. Remove the plies of the flat roof by thrusting into them with a spade.

Step by step guide for felting a flat roof step 1. A built up roof bur sometimes called a tar and gravel roof is a tried and true style of flat roof. Find out how to fix a kerb edge in this detailed instruction video. Check to ensure the roof is in good enough condition to walk over.

Secure metal flashing at the edges of the roof before primer is applied. Laying the second bonded layer of underlay felt. Installing the roofing felt does take care but can go very quickly. Lever against the.

You can either measure the roof from the ground or by standing on a ladder and actually going. Unroll the felt and cut it to fit the length of the roof with a utility knife. The sequence of laying a felt roof is. Follow the steps below to learn more the basics of roof felt installation and what is required before undertaking this type of roofing project.

Removing the old roof. This layer is not bonded to the decking so that the decking can move without damaging the felt roof. A layer of gravel or small stones is applied on top of the final coating of asphalt to protect the roof. Remove any debris that may interfere with the installation process.

Laying the top bonded layer of top sheet felt. You must remove any rotted pieces of wood on the roof and replace them with your plywood. Laying the first nailed layer of underlay felt. Complete the finish of a flat roof installation with permaroof kerb trim edging.

Step 1 prep work. Step 2 placing the felt.