Get Rid of That Funky Roof Mold

Have patterns of strange, streaky stains appeared on your roof this spring? My phone rings off the hook for roof cleanings this time of year, and as I drive around town, I see so many houses decorated with unsightly roof residue, which frequently emerges during the April rainy season. But what are the stains, why have they suddenly popped up, and what can you do to get rid of it? They are all good questions, so let’s get you some answers.

Stains on the roof are generally algae, which gets carried by wind or birds from roof to roof, and may not be visible until they have enough moisture, heat, and humidity to grow and spread. The manifestation of an algae problem is those black streaks that you see. Now don’t be too alarmed, algae isn’t necessarily going to ruin your roof immediately, but it does affect the curb appeal of your home and the problem could end up damaging and pulling up your shingles if not dealt with for a long period of time.

An interesting fact is that copper, zinc, and lead are toxic to algae, and many newer roof shingles contain copper granules, which act as a barrier against any mold growth. Homes with older roofs won’t benefit from this technology, but it explains why you won’t see algae where metal flashing has been installed. If you’re susceptible to algae and in the market for a new roof, be sure to inquire about this type of shingle.

So now that we know what it is, how do we get rid of it? The easiest way to rid your roof of algae is a good cleaning solution, which can be picked up at the hardware store, applied using a pump sprayer and rinsed with the garden hose. One tip is to give any plants below the roof a good drink of water beforehand so they don’t absorb the solution. If you’re not comfortable on a ladder, call a professional to help you complete this task. A clean roof isn’t worth a trip to the hospital, and a local area home improvement specialist will be able to complete the job in just a few hours.

Once the roof has been cleaned, you might want to do something to prevent the mold from coming back again. As I mentioned, copper, zinc and lead-coated sheet metal are toxic to algae, so installing a strip of flashing will help stop that nasty fungus in its tracks. Choose a strip that’s at least six inches wide, and have it installed at the roof peak to ensure that the metal molecules wash down with the rain and protect the roof from mold build up.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions for Bob to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.

Spring Lawn Care Tips During a Drought

This week’s short patch of warmer weather probably had you thinking about your lawn and wondering what you can do prepare it for summer while the city is still under mandatory water restrictions. Our drought status isn’t likely to be updated until at least May, so in the meantime, I thought it would be a good idea to give you a few tips on how you can try to preserve your grass as we continue through this dry spell.

Of course, grass needs water to grow, but outdoor watering right now is not possible, so first let’s focus on the soil. Healthy soil is key for root systems to grow and with proper aeration and management, soil can actually retain moisture incredibly well. When water is scarce, roots will dig deep to find the nutrients that they need. If they can’t find what they are looking for due to compaction, low pH levels, or layers of dead materials, the roots will start to die off and you’ll find yourself with a brown lawn. However, if your soil is in good shape, you don’t need to water your lawn as much, regardless of our drought status. Here are most common methods of maintaining good soil.

Topdressing is the application of a thin layer of compost to your lawn. The nutrient-rich composition of organic matter in compost can give your lawn the biology boost it needs to stay strong during drought conditions.

Aerating is a method by which a homeowner uses a machine to punch small holes into the lawn, allowing air, water, and nutrients to reach the roots of the lawn easier. This is an excellent practice during drought times as it allows what little precipitation we may get to reach the most important part of the lawn faster.

Dethatching is the process that removes old and dead organic materials such as leaves from your lawn. The long winter generally kills anything that isn’t attached to roots, and these materials can get compacted into your lawn, placing a barrier between your grass and the sun, air, and water it needs to grow. Removing the thatch is key to let the new, living material get to the surface.

Once your soil is in tip-top shape, you can decide whether to try and preserve the grass you have or look for a drought tolerant alternative. If you’d like to try and keep your grass until the drought lets up, mow it as infrequently as possible and cut it at the highest setting on your lawn mower.

For those who are interested in drought-tolerant grasses, some of the most popular warm season varieties include Bermuda grass, Zoysia grass, and Buffalo grass, but each variety performs differently depending on the amount of sun and traffic they get, as well as the soil composition.

Hopefully, we won’t need to worry about drought tolerant lawn care in the near future, but if you are looking to make a major change with your landscaping, always consult with a professional who can help you choose which solution is right for your needs.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions for Bob to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.

What You Need To Know About Replacement Windows

If you swore that this past winter would be the last time you’d put up with drafty, old aluminum windows, this week’s column is for you. Around this time of year, I get calls from lots of people looking for advice and information on replacing their windows. Not only do old windows let lots of warm air out and cold air in, they are also difficult to clean and maintain.

These days, many people are looking to replace their aluminum windows and sliding doors with a more durable option - something made from vinyl, wood or fiberglass that can withstand the test of time. There are lots of options out there and the one you pick will be based on four very important factors: the climate where you live, the amount of moisture and condensation your home is prone to, the kind of aesthetic you want for your home, and the maintenance required to keep them looking great. Keeping these four deciding features in mind, let’s go through the options.

When it comes to temperature, aluminum conducts heat and cold, which is why it’s a popular choice for cookware. Aluminum windows and doors are notorious for transferring the outside temperature in, which makes them very inefficient in both the winter and the summer. Wood fares better in the extreme seasons, but vinyl and fiberglass windows and doors are made for all weather and are built specifically to keep the warm air in and the cold air out. Remember that only 10 percent of the window is the frame, so investing in double pane energy efficient glass is your best option, no matter what frame you go with.

With our humid summers and damp winters, moisture is a major factor in deciding whether to upgrade your old windows and doors. Because aluminum transfers heat, it can attract condensation and moisture, which can lead to leaks, mold buildup, and rot inside your wall. The mold build-up I see around old windows would scare the life out of you, especially when you remember that you’re breathing those spores in every day! If you have signs of mildew or corrosion from your aluminum frames, it’s time to get them replaced.

Then there is the “look and feel” factor. Many people started replacing their aluminum windows and doors with vinyl so they could achieve a more contemporary look with the various finishes and designs that vinyl offers. Of course, aluminum products can be painted or powder coated to match the style of your home, but there will be maintenance to keep them looking great.

That brings us to upkeep. Be aware that any painted product will begin to chip and peel over time. The look of wood is elegant and timeless but it requires regular painting or staining, just like aluminum. Vinyl and fiberglass are very easy to care for and they don’t  peel, fade or need to be repainted. These products are not prone to scratches, dings or dents and can give you a longer, hassle-free lifespan if you take care of them properly.

With winter behind us, now is a good time to think about replacing old windows and doors for products with maximum energy efficiency and minimal maintenance. If your home still has aluminum and you’re experiencing some of the problems I’ve mentioned, it might be time for an update.

Bob O’Donnell is the owner of O’Donnell Bros. Inc., a Bristol-based home improvement company established in 1975. Email your questions for Bob to info@odonnellbros.com with the subject line “Ask the Pro.” All questions may be considered for publication. To contact Bob for your remodeling needs, call O’Donnell Bros. Inc. at (860) 589-5155 or visit http://www.odonnellbros.com. Advice is for guidance only.