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Tue, Sep 21st - 5:55AM

Winter Maintenance - Globe & Mail Published Article
Dianne Nice

Globe and Mail UpdatePublished on Monday, Sep. 20, 2010 12:00AM EDTLast updated on Monday, Sep. 20, 2010 6:58AM EDT

Even though it’s still warm outside, Roger Frost is thinking about winter. Time and again, the Barrie, Ont.-based home inspector has seen homeowners rack up huge expenses because they forgot to take a few preventive steps in the fall. The most common mistake, he says, is forgetting to seal window sills. A $5 tube of caulking is all it takes to fill in cracks and prevent moisture from damaging mortar and bricks.

“It’s probably the most expensive damage to most houses, other than just letting the roof go,” Mr. Frost says. “If you don’t notice it right away, it can only take one winter and then you’ve got damaged brick to replace.” For those closing their cottages for the season, now’s the time to seal any openings that could attract animals and trim back tree branches near the roof. Cottage owners should hire a local to remove snow from the roof to avoid a collapse, Mr. Frost says, and don’t forget to drain water from pipes and pumps before leaving for the winter.

Here is Mr. Frost’s list of fall maintenance essentials:

1. Check windows and doors. Windows should be caulked outside. Inside, make sure there is proper insulation between the window and the rough framing. Check window sills and frames for cracks where water can enter. If wood sills need repainting, get it done. Exterior doors can have weather stripping and an adjustable door sweep installed to reduce unwanted air flow and heat loss.

2. Winterize and store equipment. Drain the gas from your lawnmower. Wash and store patio furniture and gardening equipment in a dry area to prevent rust and mildew. Rather than covering your air conditioner, place some spacers on top with a weighted piece of plywood to keep snow off, but allow lots of ventilation to prevent corrosion.

3. Service your furnace. Run your furnace before it gets cold outside to avoid expensive emergency service. Annual maintenance by a technician is recommended and filters should be replaced monthly – or sooner if you have a lot of pets. If your home is still using a hot-water system, you should bleed the system by opening the valves at the radiator until water seeps out.

4. Seal your home’s exterior. Fill any gaps and cracks around windows, door frames, the foundation and pipes entering the home to keep water and animals out. Sealing your asphalt driveway, patio and wood deck can prevent them from cracking and sagging.

5. Inspect the roof. Check flashing and shingles for potential water entry points. To prevent ice build up, clean all gutters and downspouts of debris. Also, make sure your attic insulation is sufficient at the edges of the roof and that you have soffit baffles installed to allow ventilation.

6. Prevent components from freezing. Outside water supply taps and lines should be shut off from inside the home; the taps and lines should be drained of all water and left open. Insulating plumbing pipes will not only prevent any chance of freezing but it will also prevent condensation.

7. Inspect your fireplace. Clean debris from the rain cap on your chimney and check it for gaps and cracks, along with the bricks and mortar. Annual chimney cleaning is recommended and fall is the ideal time. Make sure the damper works properly. Store wood in a dry place away from the outside walls.

Written by Roger Frost

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Sun, Sep 12th - 8:40AM

Avoid and Protect Yourself from Stinging Insects

What are stinging insects?

Stinging insects have a sting (or stinger) at the posterior end of their abdomen. This group of insects includes honey bees, bumble bees, wasps, hornets, yellow jackets, and ants. However, many ants do not have stings. A couple of species that do have stings are army ants, found in the southern U.S., and havester ants, found in the southern U.S. and western Canada.

The sting (formally called an aculeus), which is connected to a venom sac, is a modified egg-laying tube (ovipositor). So if you are stung, it was a female insect that did it.

In North America, yellow jacket wasps are involved in about 70% of the stings to humans. They are often mistaken for bees because of their yellow and black bodies. Most stinging insects can sting you more than once. One exception is the honey bee (worker bee) which has a barbed sting. When the worker bee escapes after stinging a person, the sting and attached venom sac are ripped out of the bee and stay in the victim's skin; the bee will die afterwards.

Where will you find these insects?

While each species may have a favourite type of nesting spot, in general, nesting places can be anywhere and include: inside hollow trees, or in walls, attic, etc. (the entrance is usually a very small hole), nests that hang from branches or overhangs such as eaves of a building, in shrubs, bushes, hedges, or on tree limbs, in rubber tires, crates, boxes, abandoned vehicles, etc., under shrubs, logs, piles of rocks and other protected sites, and inside rodent burrows or other holes in the ground. Note that some insects can chew through ceilings and walls to get into other rooms, while others can bore into wood or dirt to make tunnels or enlarge the hole for their nest.

To prevent these stinging insects from moving into buildings or other structures, keep holes and entry spaces caulked and screen any ventilation openings. DO NOT Do not try to get rid of the nest or hive yourself. Each type of insect or situation will likely need different removal methods. It is best to call pest control professionals for this service. Why worry about stinging insects? It is important to be prepared for any possible effects from an insect sting, whether it happens at work or at home. Generally, most stings will only result in a temporary injury - pain, swelling, and skin redness around the sting. However, sometimes the effects can be more severe - even life-threatening, depending on where you are stung and what allergies you have. If you are stung in the throat area of your neck, it may cause edema (swelling caused by fluid build-up in the tissues) around the throat and may make it difficult to breath. Remember, if you are startled or stung by a bee or wasp while you are driving, working with power tools or machinery, or are on a ladder, you could end up getting injured with much more than a sting!

What are the health hazards?

Most people experience local effects like pain, swelling, itching, and redness around the sting site. Painful stings in the mouth and throat can result if you accidentally swallowed a wasp or bee (e.g., drinking a soft drink from a can that a wasp had entered). Some people will experience swelling in a larger area, not just immediately around the sting site. They may develop hives but no systemic effects (effects in the body away from sting site like effects on breathing and blood flow). This is a mild allergic reaction and can last a few days. The area will be sore and uncomfortable but one should not give in to the temptation to scratch the stung area. Scratching may cause a break in the skin which could lead to an infection. In rare cases, a severe allergic reaction can occur. This situation is serious and can cause "anaphylaxis" or anaphylactic shock. Symptoms of anaphylaxis can appear immediately (within minutes) or up to 30 minutes later. Symptoms to watch for include: hives, itching and swelling in areas other than the sting site, swollen eyes and eyelids, wheezing, tightness in the chest and difficulty breathing, hoarse voice or swelling of the tongue, dizziness or sharp drop in blood pressure, shock, unconsciousness or cardiac arrest.

Although most deaths result from severe allergic reactions, some are caused by direct toxicity of the insect venom. Of those who die from a severe allergic reaction to a sting, half die within 30 minutes, and three-quarters within 45 minutes. This reaction can occur the first time you are stung or with subsequent stings. Watch for signs of this reaction. If you see any signs of reaction, or even if you are not sure, call or have a co-worker call emergency medical services (e.g., 911) right away. Also, get medical help if the sting is near the eyes, nose or throat. If you have experienced a severe allergic reaction to an insect sting in the past, you will likely experience a similar or worse reaction if stung again. Doctors will prescribe a bee sting kit (self-injectable syringe containing epinephrine) to allergic people so they can carry the medication with them at all times. For people who are hypersensitive to stings, wearing a medical alert bracelet will enable first aiders to respond promptly and appropriately to a sting victim who is unconscious. People who have been stung multiple times (such as when fleeing from a swarm or nest) can sometimes suffer serious health effects. While rare, death may occur.

If you have been stung many, many times at once, talk to your doctor. You may need to have your health monitored over the next few days or week. Employers should be notified if a worker, especially one who works outdoors, has allergies to insect stings. Co-workers should be trained in emergency first aid, be aware of the signs of a severe reaction, and know how to use the bee sting kit (self-injectable epinephrine). Always carry a cellular phone in case you need emergency medical help. What precautions can you take? The best way to prevent stings is to avoid the insects. Leave the area, if possible.If there is a travelling swarm, they will likely leave within a few days. Note that insect repellent ("bug spray") does not affect these stinging insects.

Avoidance and awareness are the keys to not being stung. Before working at a site: Take a look around. Check to see if there are any visible signs of activity or a hive or nest. If you see a number of insects flying around, check to see if they are entering/exiting from the same hole or place. If so, it is likely a nest or a source of food. Wear long sleeve shirts, and long pants. If you cannot avoid working near bees or wasps, wear a bee-keepers style hat with netting to cover your head, neck and shoulders. Tape your pant legs to your boots/socks, and your sleeves to your gloves. You may also wish to wear an extra layer of clothing since wasp stings are long enough to reach through one layer of clothing.

Power tools such as lawnmowers, weed eaters and chainsaws will aggravate the insects. When using these tools, be aware that the tools may provoke the insects or in some cases, cause the insects to swarm. If you find you are working near stinging insects, here are some tips. Most bees and wasps will not sting unless they are startled or attacked. Do not swat at them or make fast movements. The best option is to let the insects fly away on their own. If you must, walk away slowly, or gently "blow" them away. The only exception is if you have disturbed a nest and hear "wild" buzzing. Protect your face with you hands and run from the area immediately.

Wear light coloured clothes such as khakis, beige, or blue. Avoid brightly coloured, patterned, or black clothing. Tie back long hair to avoid bees or wasps from getting entangled in your hair. Be careful when shaking out clothing or towels as the insects could be inside the folds. If you find a bee or wasp in your car, take a thick cloth and cover the insect before it gets frightened. Carefully, let the insect back outside through an open window.

DO NOT Do not wear perfumes, colognes, scented soaps, or powders as they contain fragrances that are attractive. Do not go barefoot or wear sandals, especially in areas where there is clover or other flowering plants that attract bees. What else can be done? Management of outdoor food sources is very important. Some insects, such as the yellowjacket look for different types of food at different times of the year. In the spring, they require more protein for the new larvae and may be more attracted to other insects but also to meats and pet food. By late summer, they are more interested in high sugar foods such as fruit, candy, and pop (soft drinks). Empty and wash out garbage cans regularly. Fit garbage cans with a tight lid. If there will be a lot of people present during the day (such as at an amusement park, fair or sporting event), empty the cans or dumpsters in the morning. When the garbage will have "attractive" properties (such as pop cans, or candy wrappers), empty the garbage several times a day. Locate the food serveries away from where crowds of people are. Clean the drink dispensing machines regularly. Screen-in food stations where possible. Locate trash cans away from the food dispensing windows. Minimize the time where the food is available by keeping it tightly covered. Clear away any scraps and dirty dishes right away. Serve sweet drinks in containers with lids and straws. Wasps will often crawl into pop cans and can be "drank" accidentally. Keep your thumb over the can opening if a container with a lid is not available. If there are fruit trees nearby, clean up any fallen fruit. Keep pet food inside the house.

What should you do if you are stung?

Wasps and hornets do not leave their sting in you, and so they can sting repeatedly. Honey bees can sting only once and will leave the sting (and venom sac plus some other parts) stuck in the skin at the sting site. The stinger, if present, should be removed right away since the venom can still be injected for up to a minute after the bee detaches from its sting. Try removing the sting by scraping sideways with your fingernail, a credit card or other stiff card, or use tweezers (if a pair is really handy) at the narrow end of the sting. You might have to use tweezers if the venom sac breaks off leaving the sting in the skin. One report showed that the method of removal was not as important as the speed at which the sting is removed. All stings hurt. A normal (or "localized") reaction to the venom from a sting is redness of the skin, swelling, severe itching (pruritis), and a burning or stabbing pain. The longer the sting is in the skin, the more will be the effect of the venom being injected. An application of ice (wrapped in a towel to prevent freezing the skin), anti-itch cream and/or an antihistamine pill can help reduce the effects of the sting.

Written by Canadian Center for Occupational Health and Safety

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