Tuesday, 19 May 2015
Spring Maintenance: Wood Shake Roofs
By following few simple steps in the spring, the average homeowner can be assured of keeping a beautiful and efficient wood shake roof for many years to come.
Spring Maintenance of Your Wood Shake Roof
Spring is the perfect time for homeowners to check wood shake roofing for damage after the ravages of winter weather and early spring storms. The inspection should take note of conditions like broken or curled shakes, rusted or loosened flashing, and cracked areas around chimneys and joints. These indicate repairs that will need to be made to maintain the integrity of the roof. Likewise, overhanging branches, debris-filled gutters, and moss or lichen growing on the shakes indicate areas where roof maintenance is needed. All of these conditions lead to the build-up of moisture, which can cause erosion and speed up decay of wood shakes. Typically, those repairs require the attention of your local roofer, but simple roof maintenance can be performed by the homeowner who is handy.
Tree limbs that shade or overhang the roof retard drying and should be trimmed away. Gutters should be cleaned to prevent blockage and the growth of mold and fungi. Rust that is detected on flashing and other metal surfaces should be removed and treated. Dirt, debris, lichen, and moss may prevent drainage of the roofing surface and retain moisture. A garden hose and a stiff brush should be used to loosen the build-up and wash it away.
The homeowner who prefers to leave roof maintenance tasks to a professional can choose additional options for preserving and enhancing wood shake roofing. Power-washing and the application of chemical cleaning solutions, preservatives, and pigmented finishes can add resilience and enhance the roof’s appearance.
These treatments require training and special equipment, and, if improperly applied, can erode the shakes and harm surrounding surfaces and foliage. A reputable roofing contractor can advise the homeowner on the appropriate treatments for his roof, and then make sure that those treatments are applied safely.
Tuesday, 14 April 2015
Prepare for the Busy Roofing Season Now
Tuesday, 7 April 2015
Save Money With These Spring Roofing Maintenance Tips
Keep gutters clear. Leaves and other miscellaneous debris can clog your gutter system, allowing water to back up into the attic or living areas of your home. It’s a good idea to check your gutters at least twice per year. Inspect your gutters, too, for sagging or other signs of damage & consider leaf-guards as a way of keeping your gutters clog-free for life.
Check downspouts. In addition to the gutters, make sure your downspouts are also free of congestion. If they are clogged, they can’t channel water and snowmelt away from your home.
Need Help Maintaining Your Roof?
Wednesday, 25 March 2015
10 Things to Do in Common Leak Areas
It’s important to make sure a roof is protected at critical areas to avoid coverage problems and not all roofing manufacturer warranties are the same. In order for the homeowner—and the roof—to get the most out of a warranty, it’s important that the contractor ensures a home is well protected from leaks. The right materials can make the difference. Here are 10 things a contractor should do to ensure warranty coverage for a homeowner:
Install waterproof leak barriers at critical areas that are prone to leaks including valleys, side walls, penetrations, chimneys, dormers, and eaves.Use edge metal at rakes and eaves to help protect from water infiltration at the roof’s edges. This is especially critical in high wind areas and colder climates.Install premanufactured flashing at all pipe penetrations to help prevent water entry.Install roof deck protection, also known as underlayment, to ensure shingles will lie flat and to protect against wind-driven rain that can blow under the shingles.Install proper attic ventilation to help manage the attic temperature and prevent moisture from being trapped in the attic space. Shingle roofs last longer when attics are properly ventilated.Install hip and ridge cap shingles to help protect those areas since they get more wind pressure than other parts of the roof. The finished look of hip & ridge cap shingles can also help increase curb appeal.Check skylight conditions. Old skylights should be replaced to better match the new roof’s age; also, new skylights will probably have better energy ratings.Install a single roofing system, like GAF’s Lifetime Roofing System.* When installing components from different manufacturers, mismatches in warranty coverage can occur. A complete system with shingles, leak barriers, hip and ridge cap shingles, roof deck protection, starter strips, and attic ventilation from the same manufacturer will allow all these components to be covered by one warranty and help to avoid finger-pointing in the event of an issue.Take advantage of problem-prevention inspections by factory-certified roof inspectors, when available. For example, when a homeowner buys a GAF Golden Pledge ltd. warranty**, they are entitled to an inspection by a GAF inspector. These inspectors are technical experts who also provide feedback on the installation.Install systems that have transferable warranties. This is a valuable feature to have if you ever sell your property in the future.
For more information on GAF’s residential warranties, see our comparison.
Monday, 9 March 2015
White Roofing: Rising Demand Charges Make the Case
There has been much trade press the past year arguing how far south a black roof will yield energy savings. Their main point is that black roofing has a winter warming benefit. However, the winter sun in is generally not very warm, and many of the calculations assume that commercial buildings are heated with electricity, which is usually not the case.
So, what is the right roof color to help lower energy costs? Much of the modeling understates the case for white roofing, but electric demand charges are changing that perception, since they can increase an electric bill by three times. Whether you’re designing a building or managing a facility, it’s important to understand demand charges—and white roofing is one way to keep costs under control.
Utility companies have to worry about two things when supplying a region—how much power they have to supply each month or quarter, and how to manage peak demands. Think peak summer season, when everyone’s air conditioning is cranked up. If a lot of power is used one hot afternoon in July, the electric company will charge at a higher rate all month long. They focus on the high demand charges that occur in a short period of time and will penalize a building owner for it.
Let's look at two types of customers whose monthly power usage is 2,500 kWh, except one of them paid over three times more than the other. How is this possible? Let’s take a look at the math:
(Credit: Department of Energy)
Even though both customers used the same total power, Customer A used it within a short window of time and was charged $1,775. Customer B spread out their demand and paid just $515—a third as much.
Sounds convincing, but all bills aren’t that simple. In fact, they’re actually very complicated to figure out, since they often don’t even mention demand charges. Here's an example of how this looks on a typical utility bill:
Look closely at the “Time of Use Detail” section. There are three charges based on actual usage: peak, partial-peak, and off-peak times of the day. Below that is a similar set of charges based on the actual rate of use, where demand charges account for 45% of the total bill! This shows the importance of checking these charges, especially since they rise faster than base charges.
Demand charges are an electrical phenomenon, and will be largest during the summer months when AC usage is at its peak. However, there are ways an architect or building manager can combat these extra costs:
- Add additional insulation. Since insulation saves on both summer and winter charges, it always generates an improvement, regardless of geography.
- White roofing can have its biggest impact in lowering peak demand and, therefore, in lowering demand charges. This is true even for well-insulated buildings.
- Time the start-up of load-intensive equipment (such as refrigerators and air conditioners) to prevent spikes, and of building energy management software to avoid simultaneous operation of HVAC units.
- Use a professionally installed cool, reflective roof such as a roof coating to reduce a building’s cooling needs and demand charges.
- For the building designer: by lowering AC demand with white roofs, the unit can be downsized. This will lower demand charges even further and reduce upfront capital costs—a true win-win.