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There are actually many different roof bodies accessible in today's market, each with different advantages and also weak spots. Below I will certainly define each unit briefly, and afterwards list the advantages and disadvantages.

Thermoplastic as well as PVC- Singular ply, may be mechanically attached, completely stuck or even ballasted.

Pros- Manager performance in ponding water circumstances. Really light-weight rooftops, round 30lbs. per 100 sq. ft. Is available in white colored if a great roof is actually intended, or in several different shades for artistic worries. Yet another plus along with these roofs is that big custom made area pieces could be bought coming from the manufacturing plant, minimizing seams secured by the team on the jobsite. Insusceptible to ozone, algae and also industry joints are actually 3-4 opportunities stronger than EPDM filed seams. There is also a remarkable quantity of versatility in the product. As well as given that joints may be joined along with warm air, there are actually no noxious fumes to deal with. Both 15 and 20 year guarantees readily available.

Downsides- Being actually solitary ply, they are actually prone to thrown out cigarettes, sudden items lost on the membrane layer, and also faulty glass coming from containers thrown on roof (this takes place a WHOLE LOT) I usually inhibit consumers coming from putting up these forms of devices if the roof possesses a considerable amount of feet visitor traffic or even is actually simply obtainable to unwarranted staffs. Over the last, component contraction went to opportunities an extreme complication on Thermoplastic as well as PVC roofings, however adjustments in composition as well as manufacturing has ameliorated this issue. These roofs still shrink over time, though certainly not relevant of breakdown as over the last.

Income- Excellent roofings, particularly on roofings that pond water greatly, provided that the roof is generally accessible only to accredited staffs.

Asphalt Changed Asphalt- This roof is what a bunch of individuals contact a rubber roof, when it is in fact comprised mostly of asphalt. It can be found in 3 ft. large rolls as well as is typically torched down with an open blaze, though they may be used with hot air welders in certain conditions at the same time.

Pros- In my point of view, the greatest stamina of these roofing systems is how properly they take on outside tensions. They handle foot visitor traffic much better than every other membrane, and are actually hard to penetrate, particularly if they have a granulated area. These roof coverings are actually therefore tough in reality, that the majority of insurance provider won't even realize hail storm damages as they do on various other rooftops (I have actually personally seen tweaked roof coverings definitely pummeled along with hail storm as well as appear completely un-damaged).

Downsides- One of the most glaring negative aspect along with these bodies is that there is actually a seam every three feets, that makes for a Great Deal Of seams. If you possess a persistent team along with a seasoned supervisor who are going to make sure that every seam on the roof is three-way inspected, you'll possibly be alright using this body. Or even, you may be pretty sure you will end up with leaks fairly soon, well before the warranty expires in my experience. And large ponding areas of water on these systems will degrade the material prematurely.

Bottom line- With a good, experienced crew this can be a good roof on a building that does not pond water excessively. And if you have a building with a lot of rooftop foot traffic, this is probably the only way to go.

Foam roofs- This system is applied with a large spray unit, spraying two liquid components (isocyanate and resin) When the liquids are mixed together, they expand 20-30 times and will adhere to concrete, wood, steel and most existing roof systems, but according to the manufacturers, NOT to modified bitumen.

Pros- When complete, the roof is monolithic with no seams, fully adhered and has insulating properties.

Cons- Full disclosure, I have limited experience with these roofs here in NE Illinois. We don't install them, but I have been on 9-10 buildings with this system, and all of them leaked badly, in a couple of cases within months of being installed. Leaks are very difficult to track down and difficult to fix even when found, as repair materials don't adhere to this surface very well.

Bottom line- Based on my admittedly limited experience with this system, I would not advise my clients to go this route when a new roof is needed.

EPDM Rubber- Rubber roofs can be fully adhered, mechanically fastened or weighed down with ballast (Riverbed gravel or pavers) They are versatile, appropriate for many installations and have a long track record.

Pros- Rubber roofs are relatively inexpensive, easy to install and repair. They are available in large sheets to minimize the number of field seams, and there is quite bit of flexibility in the membrane.

Cons- Field seams on these roofs are not as strong as Thermoplastic roofs. Flashings and roof edges tend to wear out more quickly than the remainder of the roof. Shrinkage over long periods can be dramatic in some applications.

Bottom line- Can be a good investment for a building owner, but all of the circumstances of a given installation must be carefully weighed. And good workmanship on the install is vital.

Spray applied roofing- These are not technically re-roofs, they are considered coatings. Some companies refer to them as "re-plys", as you are essentially adding a ply to the existing roof surface. There are numerous manufacturers offering various products with different compositions and specification, too numerous to go into fully here. If an existing roof is experiencing leaks but has not advanced to the point of outright failure, them may be good candidates for this solution.

Pros- Can be extremely cost effective, especially on roofs that have a lot of projections and rooftop HVAC units. The material is pure white, which in some cases (especially on metal roofs) can dramatically reduce AC cooling costs. As this is considered to be roof repairs rather than a new roof, there are tax advantages as well.

Cons- The existing roof must still be in somewhat decent condition. If applied www.maggiosroofingatlanta.com to a roof that has already failed, your money will basically be wasted. Also, since this material is sprayed on, any cars within 100 ft or so must be moved during the application process, as this material will be extremely difficult if not impossible to remove from a car's finish. Some manufacturers do not warranty this material if there is ANY ponding water on the roof. Can not be applied to a roof with an existing gravel ballast.

Bottom line- This solution may save a building owner a lot of money, if the existing roof is in good enough condition to accept the coating. Excellent solution for metal roofs in particular.

As you can see, there are many different solutions to your flat roofing needs. It is vital however to choose a roofer who will recommend the best system for your particular roof and circumstances, and not the best solution for his wallet. Be sure you understand why a roofer is recommending a particular system for your project, and which system will be the best investment for you.