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There are actually many different roof units readily available in today's market, each along with numerous strengths and weak points. Listed below I am going to describe each body briefly, and after that detail the pros and cons.

Thermoplastic and PVC- Solitary ply, could be robotically fastened, fully adhered or ballasted.

Pros- Top-notch efficiency in ponding water conditions. Very lightweight roofing systems, round 30lbs. every one hundred sq. ft. Can be found in white colored if a cool roof is preferred, or even in numerous various shades for cosmetic problems. Another plus with these roofings is actually that huge custom made industry slabs may be ordered from the manufacturing facility, lessening joints closed due to the crew on the jobsite. Resistant to ozone, algae and area seams are 3-4 opportunities more powerful than EPDM submitted joints. There is actually additionally a tremendous amount of flexibility in the material. And because seams could be soldered along with warm air, there are actually no toxic seethes to cope with. Each 15 and also two decades warranties available.

Cons- Being single ply, they are susceptible to disposed of cigarettes, sharp items went down on the membrane, as well as busted glass from bottles thrown on roof (this occurs a GREAT DEAL) I normally prevent clients from mounting these sorts of units if the roof possesses a ton of feet website traffic or even is actually effortlessly available to unapproved employees. Before, product shrinking was at times a serious issue on Thermoplastic as well as PVC roofing systems, but modifications in composition and manufacturing has mitigated this concern. These rooftops still reduce as time go on, though certainly not relevant of failing as before.

Profits- Terrific roofings, especially on roofing systems that pond water heavily, as long as the roof is commonly obtainable merely to accredited employees.

Asphalt Adjusted Asphalt- This roof is what a bunch of individuals call a rubber roof, when it is in fact comprised mostly of asphalt. It is available in 3 ft. large rolls as well as is usually torched cognizant an open blaze, though they may be used with hot air welders in certain health conditions at the same time.

Pros- In my point of view, the greatest stamina of these roofing systems is how properly they take on outdoors stress and anxieties. They deal with foot traffic far better than some other membrane layer, and are complicated to prick, particularly if they have a granulated surface. These roofs are actually therefore difficult as a matter of fact, that most insurer will not even recognize hail storm harm as they perform on other roofs (I have actually directly viewed modified rooftops positively pounded with hailstorm and visit entirely undamaged).

Cons- The best obvious drawback along with these systems is that there is a joint every 3 feet, which makes for a Considerable Amount Of joints. If you have a diligent workers along with a proficient foreman that will definitely guarantee that every joint on the roof is triple checked out, you'll possibly be alright through this body. If not, 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 www.maggiosroofingatlanta.com 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 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.