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.
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
Cool Weather Application Precautions
- Membrane wrinkling
- Failures and blow-offs due to improper adhesion
- Poor/false welds
- Membrane blisters on adhered systems
- There must be no ice, dew, or water on the roof substrate
- Do not apply roofing materials during inclement or threatening weather
- The roof substrate must be clean and dry
- All membrane rolls, adhesives, and coatings must be stored at least overnight at a minimum temperature of 12.8°C prior to their application. All water-based products must be protected from freezing temperatures at all times. Any water-based materials that have been frozen must be discarded.
- Lay out the roof area and place materials where they will be needed prior to starting your application
- Complete each roof section daily. Application should be scheduled so there are no partially completed portions of the roof left exposed.
- The correct speed and temperature settings for automatic welders are determined by preparing test welds at various settings
- Hand-welding during colder temperatures also needs to be adjusted
- Perform daily quality control, including probing and checking seams at the end of the day
- Adhesives, sealants, and primers should be kept in a warmer environment until just prior to usage in order to minimize exposure to cooler temperatures
- Not waiting the appropriate time it takes for the adhesive to set up will most likely result in adhesion problems
- At low temperatures, non-solvent-based adhesives, coatings, sealants, and caulks can be difficult to apply properly and may not adhere or cure as they do in warmer temperatures. Temperatures above 4.4°C and rising are best. Do not heat adhesive containers with torches or other high-temperature devices
- Do not attempt to thin these products
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.
Monday, 2 February 2015
Weighing the Pros and Cons of Aluminum Siding
As with any material, aluminum does have a few downsides as a siding product. First and foremost, it isn't as tough as some of the other materials on the market. It can dent and scratch easily in the hands of careless homeowners. Take care with your ladders and keep a can of touch up paint handy to treat any potential blemishes. The other criticism of aluminum siding is that it has a tendency to corrode at times. That shortcoming is more often than not the fault of the homeowner. If you regularly clean your siding, perform maintenance on any dents and scratches, and re-paint your siding every 20 to 30 years when it becomes necessary, you shouldn't have any problems with this popular material.
Another benefit of aluminum is its ease of installation. Whether you're a dedicated "DIY-er", or are concerned about what it will cost to have aluminum siding installed by a contractor, you can rest easy that this is one of the most straightforward installation projects in the industry. Due to its relatively lightweight make-up, it's easy to work with, and if you know the ins and outs of the material, it's really easy to put up.
Benefits of a Metal Roof During Winter
Thursday, 22 January 2015
Moisture Control in Low-Slope and Flat Roofing Systems
Tuesday, 20 January 2015
How to Recognize and Prevent Ice Damming
- Poor insulation from a house ceiling. An attic with inadequate or deteriorated insulation can cause ice damming.
- Lack of ventilation. A house with proper ventilation allows the necessary cold air to mix and cool the hot air from the house, which slows the snow melting down.
- Leaking gaps between the living space and the attic. These spaces allow extra heat to “escape” into the attic, which warms the space and melts even more snow.
- Seal the living space.
- Install adequate attic insulation.
- Make sure that the attic is properly ventilated.
Thursday, 15 January 2015
5 Tips to Stay on Schedule During a Roofing Project
- Plan around the weather. Use a satellite weather monitoring system to get the forecast in real-time. This will eliminate scheduling conflicts and help to avoid costly delays.
- Make sure your materials are on site. Some products are easily purchased, but others may need to be specially ordered in advance. If the latter is the case, you will need extra time to ensure everything has been delivered in time to begin your project.
- Designate a foreman/manager/site supervisor. This person will direct and supervise the roofing process, plan the work to be done for the days ahead, make sure the installation is done to standard, and secure materials, equipment, manpower, and subcontractors (if needed) to keep the project moving smoothly. Preferably, this person will not be installing, but rather spends his/her time supervising and coordinating.
- Use scheduling software. Every project should have a plan and schedule set in place before ground breaking day. It should be allotted into manageable phases with completion targets clearly determined. The schedule should be updated daily and distributed to all parties involved in the project. Making your trades and employees aware of the timelines will make meeting deadlines a breeze.
- Get a dedicated delivery vehicle. To prevent unforeseen shortages, breakdowns, or to replace broken tools, have a vehicle and dedicated "runner" available to handle these problems as they arise. You want the foreman and contractors to be on the roof working and coordinating, not dealing with equipment or material errors.
Tuesday, 13 January 2015
3 Tips to Keep Your Roofing Company Busy During The Winter Season
- Help your clients that have booked projects for the spring/summer season to select long-lead items such as custom windows, siding, or shingles - that way the project is set to begin without delay once the snow melts.
- Shift your focus to interior work. Old Man Winter will inevitably bring ice damming and roof leaks, so indoor roofing, insulation, ventilation, and attic repairs will spike in demand. Keep your outdoor work climate specific, it can not only be damaging for your businesses reputation but also for the health of your employees if outdoor work is completed in harsh below-freezing conditions.
- Offer cleanup and snow removal for flat roof, residential, industrial, and commercial clients. Not only will the service be called for and appreciated, but it can secure the integrity of your product.
- Educate yourself and your employees on the latest building and design trends to maintain a competitive edge during the summer season.
- Offer value pricing on maintenance inspections for the Spring season.
- Offer Winter specials on smaller installations and repairs
Tuesday, 6 January 2015
10 Signs You Need a New Roof
1) Signs of water damage/leaking.
2) Places where the roof is sagging.
3) Exterior light shining through the roof.
4) Dark spots/trails.
5) Scan the roof for loose material/wear around the chimney, vents, pipes and other exposed penetrations.
6) Check all kitchen, bath and dryer vents and ensure they run completely outside of your home - not just into the attic space.
7) Check for signs of moisture, mold, or rot. Water can travel down to its lowest spot before it starts dripping inside the home and mold, fungi and bacteria can grow within 24-48 hours of a water related issue.
8) Visually inspect your roof for cracked, bald, torn or missing shingles.
9) Be aware of an excessive amount of shingle granules in your gutters - a sign of advanced wear.
10) Examine your drainage and make sure all gutters and downspouts are securely attached. Also ensure drainage is open and allows water to flow out freely.









