Foam Roofing Vs Tar And Gravel

Of all the flat roofing options a tar and gravel roof is the most economical.

Foam roofing vs tar and gravel.

While tar and gravel roofing or built up roofing systems have many positive aspects if you live in an area or the roof is in a location where it will receive strong sun exposure hot tar roofs will likely damage the roof s membrane if it is left uncovered or unevenly covered by the gravel. Advantages of a tar and gravel roof. It provides excellent protection against uv rays and is an attractive option for windows and decks that overlook the roof. Most tear offs are required because of the weight of existing roofing.

Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone. Spray polyurethane foam spf roofing. Roofing tar will also protect your roof from wind and from snow and water which can collect on a flat roof. Sprayed polyurethane foam spf roofing is a probably the best of all the flat roofing options we have discussed here.

Roofing tar is often used for tar and gravel roofs or to fix leaks on a roof. Gravel is an excellent fire. Foam roofing is the exception here as it is considered an overlay and the weight load on the structure is reduced with the foam roof installation. As each layer is applied and mopped down using hot tar between layers we end up with not a single membrane but a multiple ply.

Pros and cons of roofing tar. Tar roofs are heavy. Also a tar and gravel roof is very rugged and safe to walk on. The tar and gravel roof is built up of typically three to five layers of roofing felt.

The gravel on top of them can be even heavier. Flat roofing option 6. Foam roofing is better than tar and gravel roofs did you know that the highest energy efficient roofing material available over 500 greater than tar gravel is foam roofing. Spray polyurethane foam more commonly referred to as spf is a liquid that is sprayed on the existing roof and expands into a foam creating a solid layer across an existing roof.

It has a plethora of benefits associated with it and only a few drawbacks. Roofing tar is a good choice for a flat roof as this kind of material is highly resistant to the ultraviolet rays from the sun. The final layer of a built up roofing system consists of stone or gravel. Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes.

Foam roofs are extremely durable with high tensile and compressive strength. Gravel is an excellent fire retardant.