How To Do Built Up Felt Roofing

A gravel and tar built up roof is exactly that layers of gravel and asphalt laminated felt on top of a flat roof.

How to do built up felt roofing.

Laying the first nailed layer of underlay felt. Laying the top bonded layer of top sheet felt. The built up roof is generally a flat roof or a low pitched roof which is made of a number of levels. The sequence of laying a felt roof is.

Laying the second bonded layer of underlay felt. As you work the paper can be tacked down in the center so it won t blow away. This layer is not bonded to the decking so that the decking can move without damaging the felt roof. Here s a layer by layer explanation.

Thee layers are usually laid with chippings which is layed on top to protect the felt from the sun or a mineral cap sheet is sometimes used instead. Crescent roofing has worked on this type of roof for many years and we can use our experience to advise you on the best solution. Installing any gutter drips. Bitumen ply sheets and a surface material such as asphalt or gravel.

It consists of an impervious membrane assembled from layers of bituminous saturated felt which are cemented to each other and to the roof deck with bituminous cement usually asphalt or coal. These layers provide a protective waterproof roofing solution. Built up roofing contains three materials. Laying the felt the roofing felt should be applied in layers that overlap.

Here alternating layers of roofing felt usually fiberglass and hot applied asphalt are combined to create a long lasting roof system. A built up felt roof is an established method of weather proofing roofs normally flat roofs by using more than one layer of bituminous roofing felt which is bonded to the previous layer. Built up roofs or burs also called a tar and gravel roof is a well established and popular style of flat roof that is made up of alternating layers of roofing felt or fiberglass and asphalt that is applied with heat which combine to make a long lasting sturdy roofing system. The gravel and tar built up roof is the one most commonly known.