Flat roof repair

Residential Flat Roofing – Forget About Your Roof Leaking With IB Roofs

Posted on June 23, 2009 by Leo - CoolFlatRoof

Does your low-slope roof leak due to Ice Dams problems? Does your ridge vent leak, or did you have to completely remove the ridge vent to stop leaks? Poor ventilation and attic insulation is causing your ice dams, but now you can solve this problem efficiently and economically.

An IB PVC Membrane is a solution that will keep your home, probably your biggest investment, watertight and ice dams free for decades to come!

Residential IB Cool Roof in Wallingford, Connecticut. This 80-mil grey roof perfectly blends with the house, keeps the water out, and homeowners happy. No more patching or repairs, no more worries!

Ice Dam leaks and Poor Ventilation

Most low sloped roofs in the northern United States have Ice Dams, which cause roof leaks and expensive roof repairs as well as cosmetic interior repairs of ceilings, walls, carpets and wooden floors. Those are the damages that you can actually see.

Ice dams also create invisible structural damages, which you can’t find until you open up ceilings and walls. These damages are extremely expensive to repair, as it would require hiring interior remodelers to fix structural damages, outside and inside walls, electrical systems, plumbing, etc.

Ice Dams in a Nutshell

Ice dams are caused by poor attic ventilation and heat loss from the inside of your living space. Large piles of snow will accumulate on your roof after a snow storm. If your attic is improperly insulated and ventilated, the warm air escaping from your living area into the attic, will melt the snow. The water from melting snow will run down the roof and refreeze, usually along the eaves of your roof. These are Ice Dams. The more snow is melting the bigger Ice Dams you have. After some time, the ice dams become so big, that the melting water cannot travel downward anymore, so it starts to travel upward underneath the roof shingles or rolled roofing seams. As it freezes under the roof, warm air melts it, and it slowly starts to drip inside the attic, causing all of the above and below mentioned problems.

It becomes a vicious cycle were more heat loss creates more ice dams, which cause more damages to structural walls and insulation, destroying your home from the inside, increasing your energy-related expenses, and causing more heat loss, which creates bigger ice dams…

One negative effect caused by ice dams, and which many homeowners neglect to address is the wet insulation in the attic and inside walls. When insulation gets wet, you loose insulating value, so your energy costs increase, as heat loss in the winter drives up your heating bill. The same happens in the summer with cooling. Also, mold begins to grow in the attic and inside walls, which cause and/or aggravates allergies, asthma and other respiratory illnesses.

IB Membrane Solves Ice Dams Problems

An IB membrane is a perfect way to eliminate Ice Dams on a low slope roof, as it is a seamless blanket over the entire roof. Hot air welded seams prevent water from backing up and re-freezing, as is the case with shingles and rolled asphalt roofing, therefore eliminating the effects of Ice Dams. Also, most of the snow will actually slide off the IB roof, thus there will be a minimal Ice and Snow accumulation along the eaves.

Additionally, we’ve designed a special Ridge Vent system, which we use on every low-sloped roof with ridge/soffit ventilation in place. This system prevents the wind driven water from entering your attic space through the holes in the ridge vent, while allowing the warm air to escape the attic. Check out our special Low-Slope roof ridge vent assembly, which improves your attic ventilation and eliminates leaks!

Ridge ventilation system for low sloped roofs

Flat Roof Decks and Patios

Posted on June 19, 2009June 17, 2016 by Leo - CoolFlatRoof

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Leaking Roof Decks – Why they leak and how to fix problems:

Many homes in New England have walk-on, flat roof decks with living space under them, and 90 percent of these deck roofs leak, ruining your rooms.

Stains on sheet-rock ceilings, popping hardwood flooring, wet carpets and rotted framing are just some of the damages that you may sustain as a result of these leaks.

Destruction of personal property such as beds, book shelves, computers, TVs and other electronic equipment can also occur in cases of severe leaks.

Most roof decks leak because they are typically made of flat roofing materials, that were created over a century ago, and were not designed for use as roofing for residential homes and living areas.

Another reason is the original design flaw implemented by architects and/or builders, who have no experience in flat roofing, and do not have appropriate roofing technology to use.

Avoid conventional flat roof materials – they will leak!

A properly waterproofed deck should never need repairs or replacements. Even with a floating wood deck on top, you should never have to do maintenance or deal with leaks.

This CANNOT be accomplished with rubber roofing (EPDM), becuase rubber is a GLUED system. Glue breaks down with time, and even faster, when you add water to it.

However, using IB / PVC Cool Flat roofing membrane, you can waterproof your deck and forget about!

Here is what a well done roof deck looks like:

Flat Roof Deck in Wellesley, MA

What causes flat roof decks to leak

Ponding Water Leaks

Very often you can find ponding water accumulating on these deck roofs. The majority of flat roofing systems existing today cannot sustain constant ponding water, and as a result water enters your house, and destroys your possessions and property.

Wood Deck and Railing Leaks

Often there is a wood deck installed on top of a flat roof or some sort of a railing system. To make these railings securely attached to the roof, builders often create penetrations for every railing post on the roof. The only way to “seal” these penetrations for most builders, is to use roof cement or pitch-pockets – both of these methods are considered unacceptable by the National Roofing Contractors Association (NRCA). Yet, most builders don’t have the appropriate products, expertise, and many times, don’t care enough to make these penetrations water-tight.

This results in more leaks – usually these leaks don’t appear inside your home for years, but the hidden damages can cost thousands of dollars to fix. Water slowly enters your home and rots the beams and studs. While unnoticed for a long period of time, such leaks may sometimes result in partial or complete re-framing of your roof and/or support walls.

Creating a leak-free Roof Deck with IB roofing systems

Damages caused by leaks are very expensive to fix. Yet, you can easily solve this problem in a fairly cheap way (when compared to costs of replacing and repairs you have to incur if you let the leaks continue) with IB’s life-time roofing product. With an IB Roof, you will never have to worry about leaks again and you could finally regain full use of your roof deck or patio.

We offer two different solutions for you to permanently solve your deck leaks. Both ways utilize IB’s time-proven CPA membranes, featuring hot-air welded seams. The main difference between the two methods is the product you choose to use, and the aesthetics you desire.

Assembly Type 1:IB DeckShield

A fully integrated waterproofing membrane system designed for use on walk-out roof decks. DeckShield is highly slip-resistant, and not only complies with, but also exceeds ADA (Americans with Disabilities Act) requirements. DeckShield can be used for a small balcony, as well as a large roof deck, and for everything in between. Hot-air welded seams make IB DeckShield a long-lasting waterproofing solution that is both eye-pleasing and safe to walk on when it is wet. Expect many compliments from your family and friends when they get to see your new roof patio with IB DeckShield.

Since IB DeckShield is made from the same material as other IB membranes, it is easy to accommodate for any roof penetrations, such as a Railing System and Roof-Wall detail. This will ensure that your roof will be water-tight and you can take full advantage of your deck or patio once again, invite your friends and family for a cookout, enjoy a cocktail, or watch the stars.

IB DeckShield Roof / Deck Assembly and Installation

DeckShield is easiest to install on new construction homes. However, it can be easily adopted for retrofit use on existing homes. IB Deck Shield is installed as a fully-adhered application on top of Dens Deck – a fiber-cement type board that is 1/4 of an inch thick, or over plywood.

The surface for installing IB DeckShield must be clean, smooth and flat. That is why in some retrofit applications use of DeckShield may be difficult or impossible. When you have an uneven surface, it is best to use the regular IB Roofing Membrane with a wooden deck over it. If you still want to use Deck Shield for a retrofit roof deck project, expect the additional costs of making your roof surface even.

Learn more about how IB Deck Shield membrane is installed, installation prices and more general information on roof deck waterproofing, using IB DeckShield membrane.

Download DeckShield brochure

IB DeckShield – a beautiful and durable decking waterproofing membrane.

Benefits of Using IB Deckshield Assembly

Enhances the appearance of decks
Eliminates annual painting and staining of wood decks
Durable, slip resistant waterproofing system
Resists mildew, chemicals, and UV rays
Eliminates hazardous wood splinters and unsightly concrete cracking
Complies with ADA (Americans with Disabilities Act) requirements

DeckShield Colors and Texture

Assembly Type 2:IB PVC membrane with a wood deck installed over it

A more traditional way of roof deck construction, features an IB Lifetime single-ply membrane with fusion-welded seams. This method will ensure permanent water-tightness of your roof deck, combined with a deck and railings system built with your choice of wood and pattern. Download IB Roof brochure

Benefits of Using IB 80-mil Membrane with PT / Composition Deck on Top:

Wooden deck on top of IB 80 mil roofing membrane protects the roof from accidental mechanical damages
Allows you to have a more traditional wooden deck / patio
Composition deck assembly eliminates the need to stain / paint the wood
Allows extended use of outdoor grills, without worrying that you’ll burn through the roof
Allows for creation of beautiful deck designs and the use of steel outdoor furniture

IB 80-mil PVC roofing membrane with composition board deck assembly create this beautiful patio

A happy client enjoys her private roof-deck in Arlington, MA. Roof assembly consists of 80-mil IB Roof for waterproofing, and a diamond-shaped, low profile deck.

Tar-n-Gravel, Built-up & Modified Bitumen Roof Repair for DIY Homeowners

Posted on June 18, 2009June 17, 2016 by Leo - CoolFlatRoof

Usually, when a tar and gravel roof begins to leak, it is not considered ‘repairable’. Thus, this guide is intended to help homeowners and facility managers to temporarily patch the roof and stop leaks, until complete roof replacement can be done.

Complete roof replacement is highly recommended to avoid / prevent the ‘sunk cost’ – costs that have been incurred and which cannot be recovered to any significant degree (or simply – waste your money).

An analogy can be drawn with an old car, where you keep on fixing a small thing, one after another, until something major breaks, and all the money put into fixing it, is lost.

These can be purchased at your local roofer’s supply warehouse, lumber yard, Home Depot or Lowe’s. Roofer’s warehouse is a preferred place to buy your supplies, as they will have the best selection and knowledge of products you will need.

Try Bradco Supply, ABC roofing supply, Beacon supply or Harvey Industries (in New England only). These are all either regional or national roofing supply warehouses, and they usually stock everything you may need, and also have a somewhat knowledgeable staff to answer your questions.

These are the places where most roofing contractors shop, so you should be able to find what you need!

Tools you will need:

Utility knife with a few spare blades
A bucket (or two) of tar
Asphalt saturated fabric (cotton or fiberglass, it doesn’t matter too much)
Plastic trowel for spreading the tar
Few dry towels / rags.

Tar & Gravel flat roof in Lynn, MA

tar and gravel flat roof

Finding the Leak

This is the essential step in patching of the roof. The nature of flat roof leaks makes it difficult to identify the spot where the water is coming in, since it may ‘travel’ under the roofing membrane, until it finds the lowest spot, and only then you see the stains on your ceilings.

Flat roof chimney flashing used tar and reinforced fabric. After 7 years, tar dried up and began to crack, letting water penetrate the roof.

The easiest way to find a leak is to start at the lowest spot, where the water may be collecting and sitting for days after each rain – this is called ponding water, and it is one of the most common leak spots. You will need to shovel off the loose gravel to the high spot and clear at least about 100 sq. ft of roof area. If you have ponding water under the gravel, you can use old clothes / rags and a dustpan to put it in a bucket and get it off the roof.

Now It’s Time to Do Some Repairs – a 10 Step Process

First, watch this video on step-by-step tar & gravel roof repair, and it will be easier to understand and follow the steps and procedures described below.

1 ) Once the area is clear of water and dry, look for blisters, cracks and openings in the tar, or other signs of water entering spots.

2 ) Cut out the blisters with the utility knife – make a large ‘X’ cut and then pull it back a little. Let it dry out, then open up the cracks and let them dry out also.

3 ) When everything is dry, use a plastic trowel to apply a thick layer of tar under the area you have cut, and set the sliced portions of the roof back in the tar.

4 ) Use the towels to clean up the area under the X. Sweep away all dust and dirt under, over and around the cut area. This will greatly improve the quality of your repair.

5 ) Now spread an even coat of tar over the patched area approx 1/8 inch thick or a little more, so that it goes at least 6 inches beyond the repair area.

6 ) Cut out a piece of fabric that would be enough to cover the repair area and place the piece of fabric in the tar. Use a towel to set it in, so that the fabric gets saturated with the tar until you see it coming through the fabric.

7 ) Apply another thin and smooth coat of tar over the fabric and beyond its edges.

8 ) Feather the edges into the old roof.

9 ) Put back the gravel with your hands, over the repaired area – make sure you do not use a push-broom, as that will disturb your new patch. This gravel will protect the repair from devastating sunlight.

10 ) This is a 3 course tar and fabric patch. Add another layer of fabric, then tar and it is a 5 course.

Next Steps: Roof Repair or Replacement

Bear in mind that this repair will last you about 3-6 months, after which another repair in the same spot will be required, and at the same time more leaks will probably appear elsewhere. The purpose of such repairs is not to get rid of leaks all together, but to temporarily stop leaks, while you gather resources and information to install a new roofing system. Due to the nature of tar and gravel roofs, there is no permanent cure for roof leaks. As tar dries up, it turns into a ‘dust compound’, which helps the de-lamination of the patch from the existing tar roof. Therefore, unless you are willing to take the continuous roof leak and repair cycle, which not only has direct repair costs, but also does hidden damage to the structure of your home or building, which in effect will increase your out of pocket costs, when you finally go with a full roof replacement.

Also, if you do not feel comfortable performing these repairs yourself, we recommend that you hire a professional roofer specializing in flat roofing – not Joe, the shingler, that your friend knows. Flat roofs are completely different from regular shingle roofs, and require special training/experience when dealing with them.