There’s a roof fungus among us

Has a pattern of strange, streaky stains appeared on your roof this spring? As I drive around town, I see many houses decorated with a display of unsightly roof residue, which frequently pops up during this wetter time of the year. But what is it, why has it emerged 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 or mold, which tend to crop up as humidity rises and warmer temperatures start to emerge. Now don’t be too alarmed, small black stains and mold aren’t necessarily going to ruin your roof, but they do affect the curb appeal of your home and the problem could end up being damaging if not dealt with for a long period of time.  

An interesting fact is that copper is 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 mold is a good old-fashioned bleach and water mixture, which can be 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 bleach mixture. Diluted bleach is a powerful compound that will clean the roof without any adverse effects, so long as you give it a good rinse afterward. There are other products on the market that will do the job, just pop into your local hardware store to find out what’s best for you based on your home’s symptoms.

Once the roof has been cleaned, you might want to do something to prevent the mold from coming back again. As I mentioned, copper, and zinc-coated sheet metal for that matter, 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.  

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 less than a day.

Prep your gutters for April showers

Most people delay their gutter maintenance jobs until the autumn, but a good spring clean before the wet weather sets in is a smart move that can save you potential pain in the pocket down the line.  

April is the wettest month of the year and if your gutters aren’t ready to withstand the showers, now is the time to do something about it. Over the late fall and winter, tree leaves, branches and other debris falls onto our roof and down into our gutters, collecting over time. In the winter, this can lead to ice dams and other hazards, but in the spring, it prevents gutters from working properly. A gutters main job is to create a pathway for water to move away from your home and through a downspout to deposit in a safe place away from your foundation. This system is vital to a home; it makes sure water can flow freely and not cause leaks in your roof, attic and walls. But if your gutters are blocked up, the water has nowhere to go and has no choice but to flow over, creeping up into your roof shingles and down through your siding. This kind of damage is costly to repair and entirely preventable, so get your gloves on and let’s get to it. 

To give your gutters a good clean you’ll need a ladder, a lawn bag or bucket, a small hand rake and a hose. Don’t be tempted to spray debris down the downspout with water; it’s likely that branches and leaves will get stuck inside, which will then clog it up and leave you with a whole new mess to deal with.  Start at the downspout opening and work your way backwards, collecting gunk away from the downspout and disposing it into your bucket. Work in small sections and don’t let your bag get too heavy – it could throw you off balance and land you in the emergency room. While you’re making your way around the house, check for any gutter damage, such as sections coming loose. You want to make sure you get those fixed while the weather is good. Once you’ve finished the cleaning, you can give each section a good spray with the hose to check and make sure the water is running through and you don’t have any hidden build-up in those downspouts.

If gutter cleaning is a job you’d rather not take on, hire a contractor to complete the maintenance and then speak to them about putting gutter guards on your home. These wire or mesh overlays are installed on top of the gutter and prevent debris from entering the channel in the first place. They offer a great solution to a messy job and will provide you with peace of mind for years to come. 

What’s Mold Got To Do With It?

Mold is a problem that most homeowners have to deal with at one time or another. It’s the damaging by-product of water and moisture that can wreak havoc on your home, and more importantly, your health. So with spring on the way, now is a good time to inspect your house for mold and get rid of it before it does any kind of serious damage. But first, it’s a good idea to learn a little more about this pesky organism and why it demands to be treated so seriously.

You might be familiar with mold (otherwise known as mildew) from your shower or bathtub. Since the shower is often wet and the tiles are waterproof, water can sometimes seep into the grout, which, if it’s old and can’t handle its repelling duties properly, can become a breeding ground for mildew. So you’re left with microscopic organisms that feed off the moisture, allowing it to grow until you nail it with some Tilex and wait for the next clean. But what happens when mold starts to grow in the places you can’t reach to scrub – places like your ceiling, inside walls or attic? You’re probably saying, “Not in my house”. Well, guess again.

At least half the homes I visit for improvement and remodeling projects have a major mold problem and the owners don’t even know it. How? Besides that well-known smell at the source, mold generally grows in places that you can’t see – like inside the walls and attic. What most people don’t realize is that mold reproduces, or grows, by releasing spores that you’re breathing in day after day.

How common is this? If you’ve ever had a leak, you’ve most likely had a mold problem. So what can you do about it? You can prevent mold by ensuring your home stays dry. Here are my top tips:

1. Keep your gutters and downspouts clean and clear so water can drain away from your house.
2. Don’t let a leaky roof go unfixed.  Get it patched up immediately and ask your contractor to inspect for any mold growth.
3. Make sure the ground around your house doesn’t slope inward towards the foundation where water can idle.
4. Inside the house, beware of any discoloration in the ceiling.
5. Ensure high moisture areas like bathrooms are well ventilated with good ceiling fans.
6. If a leak has poured into the carpet, don’t just leave it to dry. A damp area can attract mold in less than 48 hours.
7. Ensure large appliances such as refrigerators and washing machines aren’t leaking and have a catchment tray in the event of a malfunction. 
8. If you use a humidifier, make sure it’s cleaned and the water is changed regularly.
9. If you feel that your house or basement has a high level of moisture, consider purchasing a dehumidifier to regulate the humidity and remove any excess moisture from the air.

If you’ve had a mold problem that you’ve tried to control by scraping, cleaning and repainting the area, don’t make the same mistake twice. If the mold keeps coming back, that means the issue runs deeper than the eye can see. It’s time to call in the pros.