Overlap Roofing Felt By

Felt roof underlayment 30 saturated roof felt.

Overlap roofing felt by.

Roofing felt is required to overlap 2 inches over the lower felt course. Roofing felt is essential to ensure your outbuilding is ready for all weathers by providing a waterproof cover to the building s roof. Follow the 10 steps below in order to felt a flat roof. The bottom course of felt on a roof called sarking felt ensures that all of the rainwater is correctly channeled into the gutter by protecting the eaves from any wind driven rain.

Hence this is why tiles are fitted on top of each other rather than sideways. For a flat roof the same applies start at the lower end first working to the higher end and this should resemble tiles on a roof. Install the roofing felt on all roof sides extending it over the ridge of the roof and overlapping 8 inches there just as you did on the sides. Ideal for an apex flat or pent roof shed felt and roofing membrane are durable and perfect for a newly built structure or to re cover existing roofing material.

Step by step guide for felting a flat roof. If this felt is either incorrectly situated i e. Atlas roofing provides a complete selection of roofing felt underlayment. Keep in mind that if you are looking for a more permanent type of roof coverage you might consider using roll roofing which is specially designed with a mineral coating to resist bad weather.

The last layer should go over both sides of the roof overlapping both side covered in felt. Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest. The roofing felt should be applied in layers that overlap. As you work the paper can be tacked down in the center so it won t blow away.

Work up the roof to the peak and fold felt over the top overlapping at least 3 inches and fasten it on both sides. Do the other side of the roof the same way also with an overlap at the peak. The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below. Tip the roof ridge is the horizontal top edge which may or may not be present on a hip roof.

Roof felt adhesive e g. If the roof felt tears cut a piece of felt that is large enough to cover the tear with lots of overlap slip the top under the next layer above it and nail it into place. Trapped behind the guttering or if it is badly weathered it needs to be replaced. Bitumen in terms of materials please note that there are several different weights for the roofing felt.

The roof felts are asphalt saturated and are manufactured with a high grade organic mat.