Flat Roof Repairs | Flat Roofing Dublin

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Modified Bitumen Flat Roof

A Modified Bitumen is a key element in any built-up roof.

This type of roofing system was developed in Europe during the sixties and later introduced in the U.S. in the early seventies. Modified refers to the addition of plastic or rubber-based polymeric binders to the asphalt or “bitumen” to improve its roofing performance and durability. Modified Bitumen Flat Roofs are usually assembled using one, two or three plies.

The Modified Bitumen Membrane is made up of multiple layers in what is essentially a “factory assembled” built-up roof. During the roofing manufacturing process, several coats or laminations of modified bitumen are reinforced with a woven fiberglass, or polyester fabric reinforcing mat or a combination of both. They are then finished with either a smooth or granular top surface.

The Granular type comes in different colors. The smooth surface type is then coated with either an aluminum or white surfacing on site. The coatings are used to deflect the damage from ultra-violet rays from the sun as well as keeping the roof surface cooler.

Modified Bitumen Roofs exhibit many characteristics of a built-up roof (BUR), yet affords the ease of application on a single-ply roof. This offers various specifications which allow for multiple plies, which provide redundancy and exceptional resistance to heavy traffic, punctures and tears. Modified Bitumen membranes also have low-temperature flexibility and are resistant to membrane fatigue(break down).

There are two types of Modified Bitumen Systems

  • APP (Atactic Polypropylene) roofs are applied using a heat-welded method. The top surface comes in either smooth or granular. The consistency and uniformity of the factory produced sheet results in a membrane that has greater stability and flexibility than that of a laminated built-up roof system.
  • SBS (Butadiene Styrene) roofs are usually applied using hot asphalt, bonding adhesives, heat welding or heat activated self-adhesives. The top surface is a mineral granular of choice of colors. It has the benefits of a built-up redundant system with the quality of a factory single ply membrane.

flatroofs.ie employ expert technicians and are qualified to install modified bitumen roofing on any commercial and industrial flat roofing system in Ireland.

Advantages and Disadvantages of Flat Roofs

With many different types of Flat Roof to choose from we have prepared a listed of Pros and Cons of each below

Newer and newer flat roofing materials are appearing yearly. They wear better than older material and made with better technologies than before.

Domestic/Homeowners and Commercial business can choose among four kinds of flat roofs.

All 4 types of flat roofing systems can cost €250 to €350 per/square foot, prices do vary according to region and size of the roof. Flat roofs usually come with a 10 to 25 year warranty but the roofs can last up to 30 years if properly installed and maintained.

Built-Up Roof or Hot Tar flat roofing similar to roads

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. Once made of tar paper, these types of roofs gradually are using more-advanced materials such as fiberglass membranes.

  • Pros: Gravel is an excellent fire retardant. Attractive for windows and decks that overlook the roof. It’s the cheapest of the four roof varieties.
  • Cons: Very heavy. Joists sometimes have to be strengthened. Smelly and messy to install. Installation’s not recommended for occupied homes. It’s not a DIY installation job, and it is hard to find the source of leaks. The gravel has been known to clog gutters.

Heated Modified Bitumen

A single-ply rolled roof similar to ice-and-water shield, but impregnated with a mineral-based wear surface. Torch-down systems involve heating the adhesive as the material is unrolled. Newer peel-and-stick systems are safer and easier.

  • Pros: Peel-and-stick material can be installed easily. Its light-colored mineral surface reflects heat and cuts energy bills. Its price is in the middle of the pack.
  • Cons: Torch-down application is a fire hazard, and not recommended for occupied buildings. It has been know  to scuff and tear rubber-membrane roofs.

Rubber Membrane Flat Roofing

EPDM (short for ethylene propylene monomer) is a true rubber. The durable material resembles an inner tube, but it’s engineered to resist damage from sunlight. EPDM can be mechanically anchored with fasteners, ballasted with stone, or glued in place.

  • Pros: Homeowner-friendly installation. The material’s relatively light yet highly resistant to scuffs and tears. Leaks are easy to patch.
  • Cons: The standard black material absorbs heat, and light-colored coatings (recommended in warm climates) add 30% or more to the cost. Even the black version, though, costs more than BUR or modified bitumen. It’s also more vulnerable to punctures than other choices.

Flat Roofing Reviews

Our flat roof out the back was leaking we called flatroofdublin.com. They inspected the roof and it was decided to replace it because it was over 30 years old and had seen its day.

Thanks guys for a new, warmer, cleaner looking roof

 

Abbie – Dublin 6

Dublin’s​ Flat Roofing Company | Flat Roofers Dublin

flat roof repairs or rebuild

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EPDM Flat roof

Flat roof membrane EPDM Flat roofers Flat roof repair and Installation flatroofs.ie is a collection of the best Flat Roofers Ireland has to offer. Our partner companies install flat roof membrane for over a century of experience in Rubber roofing Technology. Flat roof membrane has successfully produced and installed over 1,000 Million M² of Rubber […]

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Flat Roofing Contractors

Help With Flat Roofing If you have flat roof that needs repair, you’re in the right place. Below you are going to read some tips that will help you to get your flat roof back into good working order. Read through the following information to learn more about roofing techniques. You’re going to want to […]

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Fibreglass Flat Roofing

Fibreglass Roof Problems These are a few of the most common problems which can be the causes of leaks with GRP Flat roofs. Below are just a few Fibreglass Flat Roof Repairs problems to be mindful of before repairs. Flashings: If the area where your flashings meet an adjoining wall haven’t been sealed correctly, or […]

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EPDM Rubber Flat Roofing

This single ply roofing membrane is called EPDM (ethylene propylene diene monomer). EPDM Single Ply Rubber Roofing offers high performance, has superior weather durability through a wide range of temperatures and conditions and demonstrates excellent resistance to rain, hail, sleet and snow. EPDM Single Ply Roofing System is an elasto-meric (a roofing material being that […]

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TPO Flat Roofing

TPO Flat Roofing TPO is an excellent roofing system for any climate. TPO, it is said is an advancement and a great improvement to traditional flat roofs that are being explored today. The seams of TPO roofs are welded instead of glued. They are less likely to separate when heated and consistent environmental changes. The […]

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Modified Bitumen Roofs

Preparation EPDM Rubber Flat RoofA Modified Bitumen is a key element in any built-up roof. This type of roofing system was developed in Europe during the sixties and later introduced in the U.S. in the early seventies. Modified refers to the addition of plastic or rubber-based polymeric binders to the asphalt or “bitumen” to improve its roofing performance and […]

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Complete flat roofing services

  • We are a small business delivering local professional flat roofing in Dublin City and County
  • Our services are convenient for home owners and commercial roofs
  • We use eco-friendly products that are clean, protect and maintain your roof.

Check Out Our Changes!

Flat roofing has come along way in the last then years since the days of them just being a cheap alternative to a pitch roof and nearly always leaking.  That has changed now and thanks to the development of better materials. read more…

GRP Flat Roof Very pleased with out new roof. The roofers, worked wonders to avoid the rain and the whole job was completed with ease, both cleanly and to a very high standard.

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We are roof repair in dublin

We repair or replace roofs, gutters and flat roofs throughout Dublin. For a nationwide flat roofing service see your webpage www.flatroofs.ie