Residential Roofing Contractors Identify Top Causes of Roof Leaks

Noticed water damage in your attic and ceiling? That’s probably caused by roof leak. Find a trusted roofing contractor to fix it right away.

Roof leak is a leading cause of water damage in New Zealand homes. In fact, a couple of decades ago, it was a widespread household problem that particularly affected untreated timber-framed “Mediterranean” style houses with flat roofs and plaster cladding, which was trendy at the time. The problem was so serious it was later called “The Leaky Homes Crisis”.  

Thankfully, with today’s leak-proof home designs becoming increasingly popular and improvements to the building code being strictly observed, the crisis has finally died down and affected families are coping. Then again, this doesn’t mean you can live a carefree life, as shifting to a modern home style doesn’t guarantee freedom from roof leak. After all, roof leaks may come from a variety of sources other than poor design, including the following.


Damaged Vents

Roof vents are made to prevent the transfer of heat and cool from inside and outside of your house. They consist of several parts, including pipes and gaskets. If any of these parts were broken, outside moisture or water can easily leak into the house. Make sure the pipes and gaskets are intact with no cracks, gaps, or even missing nails. If you discover issues, don’t hesitate to call in a roofer to fix them immediately.


Shallow Slope

Some homeowners opt for a low-pitched roof to save money, not knowing that reducing the pitch could affect the roof’s ability to resist leak. Although roofs can be made flat, a special technique is needed to achieve this without compromising leak tolerance. Residential roofing contractors understand that this technique can’t be used for other roofing materials, such as shingles and shakes. The minimum slope for asphalt shingles and wood shakes must be 2:12 to prevent water from backing up into the house.


Ice Dams

During winter, ice forms underneath the pile of snow on the surface of your roof. If your roof lacks proper ventilation, the heat from your home escaping into the attic may melt that ice. The snow cloaking the roof dams the snowmelt. Instead of falling into the gutter, the snowmelt will seep underneath the shingles and into the roof deck.


Poorly Installed or Broken Flashing

Roof edges as well as the sides of your chimney are notorious sources of leak. This is why they must be sealed off with flashing. The problem is that over time the flashing deteriorates, opening paths where water can trickle into the house. You have to make sure the flashings are properly sealed and resealed on a regular basis. In fact, if you’ve just moved to a new house, flashing in those areas are among the first things you should check.


Wobbly or Bent Ridge Cap

The peak of the roof where two of the roof’s edges meet is actually open. It is closed and sealed with a bent ridge cap. The cap’s position makes it the most vulnerable part of the roof because it can be easily blown off by high wind if not installed properly. Over time, its seal wears away and some nails might go missing. When this happens, the cap will become less resistant to wind force and as it wobbles, water may seep through its underside.


Debris Build-Up

Snow build-up is not the only cause of dams that wreak havoc in roofs. Debris such as twigs, leaves or pine needles can trap water on the roof as well and cause as much damage. Whether or not your house is surrounded with trees that might be the culprit to such occurrence in your roof, you have to stay alert and keep your roof free from debris at all times. Sometimes, these debris may even block the downspout, causing water to dam in the gutter and back up into the house.


Broken and Missing Shingles

Roof shingles’ single most important job is to guide rainwater or snowmelt into the gutter. If one of them has been damaged or worse blown off, nothing in the emptied zone will prevent water from trickling down into your house. Once water breaks into the roof deck, it will leave a trail of damage that’s difficult to repair. So it’s crucial to check the roof for broken or missing shingles every now and then, especially after a storm.

To ensure your safety, use the proper fall arrest when working on your roof. For guaranteed lasting solution to your roof leak problems, leave the job to a trusted commercial and residential roofing contractor, such as GMZ Roofing. Not only do they have the right skills for the job, but they also use advanced tools for detecting and fixing leak sources.




Roof Painting Services and Other Effective Ways to Maintain Your Metal Roofing

With so many roofing types available on the market, it’s so hard to choose the right one for your home. If you know what features you want, however, decision-making can be a breeze. For instance, if you are looking for longevity and flexibility, your best bet is a metal roof. Lighter than wood shakes and slate, metal roofs are easy to install and just as durable.

That said, metal roofs are tricky to maintain. Unlike tile and slate that require minimal upkeep, metal roofing has to be regularly checked to make sure no damage is shortening its life. Here are a few maintenance tips you can follow if you have a metal roof you want to last a lifetime.

Clean It Regularly

Regular cleaning is a necessary step in maintaining a roof regardless of its type, but metal roofing seems to need it more than the others. This is because dirt and debris, particularly the organic ones such as leaves and twigs, may cause the metal to corrode. Even if the metal used is non-ferrous or does not contain iron, it may still corrode. The trick is to eliminate any substance that can trigger corrosion and seal the surface of the roof.

Removing Rust

When you find patches of rust on the surface of your roof, clean it right away to prevent it from spreading and cutting through the panels or shingles. Do not use a steel brush to remove excess rust because too much pressure might poke a hole into severely rusted areas. Better scrub with a clean cloth dipped in a special metal cleanser instead.

Separate Different Metals

Metals are quite sensitive materials. Different metals don’t like coming into contact with each other. When they do, they often react by breaking down in a process called electrolytic corrosion. It’s dangerous when the metals in question are on your roof. The last thing you want is a streak of corrosion on your roof caused by a copper pipe laying on top of your galvanised steel roof.

Paint the Roof

One of the reasons why many households prefer metal roofing to other types of roof is that it can be painted in the colour or style they want. They can even paint it based on a certain occasion or even to match a newly installed siding. To achieve a fine roof painting, consider using professional roof painting services from premier roofing companies in Auckland like GMZ Roofing.

Paint improves not just your metal roof’s aesthetic appeal but more importantly its protection against the elements. Roof painting professionals are highly trained in coating all kinds of roof and use only the highest quality paint products. They know exactly the kind and brand of paint that could meet the highest roof coating standards.



5 Red Flags that You Need Re-Roofing Services Soon

Roofs are not made to last forever. They get old, deteriorate, and fall apart like everything else. It’s important to inspect your roof regularly to determine when to call a trusted roofing company like GMZ Roofing for repair, maintenance, or replacement. Don’t wait until leak starts wreaking havoc in your attic before you ring them up. Here are some revealing signs that you need re roofing services as soon as possible.

Shingles or tiles are firmly installed on the roof’s underlayment so they are not supposed to be easily removed or dismantled. If you found out that there are a couple of shingles missing, don’t ignore it not only because the empty slots may funnel rainwater into your house but also because it can be a sign of a more serious problem brewing above your head. Especially if your area wasn’t hit by a bad storm recently, it could indicate that the entire roof is starting to fall apart due to old age and something has to be done soon.

Rust in Metal Roofs

Many metal roofs are rusted that will, if left untreated, progress into holes and leaks. Badly rusted metal roofs may be past repairing and it may be more economical to re-roof.

Sags and Cave-Ins

Roofs need to maintain a flat, slanted surface to ensure runoff falls into the gutter and away from your home’s walls and footing. Any dip may cause water to pool and slowly seep through gaps, causing serious damage to the underlying structure. If neglected, water can make its way into the attic and down to your ceiling. Most cases of sagging on the roof are beyond repair because the underlying structure is no longer structurally reliable in which case replacement is the only viable option.

Severe Damage

When was the last time you had a roofer inspect your roof? If it’s been more than a few years, chances are your roof is already seriously worn. Don’t be surprised to see rust, cracks, punctures, holes, and splits all over the place. Assess the state of the roof right away and determine if the damage can still be repaired. If you find damage across the roof instead of just in certain areas, then replacement is the best course of action.

Granules in the Gutter

The granules accumulating in your gutter come from the asphalt shingles. These are pulverized minerals that comprise the top layer of the shingles. Over time, as the shingles get exposed to the elements, this layer of minerals dislodge. They then get flushed to the gutter by runoff. Losing granules exposes less resistant layers of the shingles, which could lead to complete damage of your roof.

Replacing your roof is a big decision, considering the huge budget it entails. However, if all the signs show that it is the best course of action, don’t stall and resort to fixing problems as they emerge. It might surprise you to know that you can actually save more when you install a new roof than when you keep fixing damage.

That said, there are certain considerations you need to make for a successful roof installation. You should learn more about “reroof vs new roof”, for instance. A professional roofer from GMZ Roofing can help figure out which is better for your situation. If you opt for reroofing, find out how much to reroof a house, although that would certainly cost less than constructing a roof from scratch.