Built Up Roof, The Commonest Type Of Flat Roofs

In reality, there cannot be a literately flat roof because it will not drain any water. When it rains, the water will remain there until when the roof begins to leak. So, what is being referred to as flat roof is actually low-sloped roof. It is not as sloppy as the pitched roof. Actually, flat roofs usually have about 10 degrees slope.

Built up roofs are flat roofs designed to offer fantastic waterproof protection.

The commonest kind of flat roof is built up roof. Even though it is also referred to as hot-tar-and-gravel roof, tar is no longer in use. Instead, asphalt built up roof is now the order of the day. This is because asphalt lasts longer than hot tar.

Some of the benefits of built up roofs are outlined below:

Since flat roofs drain water less than pitched roofs, water stays on it a little longer. So, built up roofs offer fantastic waterproof protection. This helps to prevent leaking. It also protects the building from the ultra-violet rays of the sun. Needless to say that UV rays are dangerous to human health.

Another benefit is that it requires relatively low maintenance cost and it can withstand harsh weather conditions. It is very tough and durable. Gravel is a very good fire retardant so built up roofs protect the whole building from being razed down. Secondly, gravel beautifies the siding, deck and the windows of your house.

As beneficial as built up roofs are, they have their own drawbacks. They are quite difficult to install. The difficulty also affects the speed of installation. In other words, they are very slow to install. Secondly, the installation emits fumes and vapors that are harmful to human health.

Even though built up roofs have a very low cost of maintenance, their cost of installation is on the high side. When a built up roof begins to leak, the leaking spot is always difficult to figure out because gravels sometimes clog the scuppers and gutters. Finally, built up roofs are quite prone to water and wind damages.

Common issues with built up roofs are open joints, undulations and cracks.

Open Joint

To repair any open joint, first apply some cement on the opening. Then, you hold it down so that it can stick to the substrate. This method sometimes fails. If it does, then you have to cut a felt and nail it down over the open joint and pour some cement of the nail and then spread some gravel over the cement and allow it to harden up.


To fix this, you need to level up the sunken areas by adding some layers on them. The substrate has to be in perfect condition for you to be able to fix the problem of undulations.


First of all, you need to clean the area and then add a coat of asphalt cement to it.

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Los Dos fishing teamLos Dos fishing team

My Florida roofing is an amazing company to deal with. The recently redid our roof from shingles to standing seem metal roof. It looks amazing. I got roughly about 10 quotes from the top roofers in Indian river county and they help educate me and showed me different options of material's for the new roof. Their team came in and stripped reroof the entire home in about week to do great weather. They strip and relapse before any rain could hit the exposed material. Rene and Maxine are such a pleasure to deal with. The are very upfront about everything and every detail that you speak with Rene about is backed up with written documentation so you know and see exactly what you are paying for. They also show and explain the different options to add on if you choose to. They are very quick to respond and answer any questions you may have in a timely matter. No doubt in my mind did I make the right decision going with My Florida Roofing. I recommend and would you use them again for any future projects. Again thank you Rene, Maxine and all of the team at My Florida Roofing for making a new roof process so quick and painless

Ren RobbRen Robb

The Reyes' were very friendly, accommodating and professional. Rene visited the site often to check on the work. The crew was professional friendly and efficient. We had our roof replaced, asphalt shingles to metal, almost a year ago now and still marvel at the look. The color matches perfectly with the house trim. I highly recommend MyFloridaRoofing.

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Your Roof is Our Passion. Let Us Assist with Your Next Roofing Project.

Family Owned & Operated for Over 15 Years. Call Us Today! (772) 206-4506