For most people, discussions on energy efficiency are academic.  They only seriously think about it when paying their heating bills, when it is too late.

It’s during winter that energy inefficiency is most obvious.  In fact, the enormous icicles and ice barrages that accumulate on roofs are flagrant proof of heat loss and an inefficient use of energy.  I am always surprised to hear intelligent people say that this is typically normal for our Quebec winters – just like apple pie is American.  What nonsense!

At the beginning of winter, heat loss through the eaves or the attic keeps the roof surface warm.  As snow starts to accumulate, it stays, even on slanted roofs.  After awhile, snow becomes the insulation and traps the air. The colder it gets, the more we heat the house and the more heat we lose, the more the eaves and roof surface warm up.

Monster Icicles

One day, the roof surface temperature reaches 0 degrees Celsius and the snow next to it softens and melts.  This melting snow transforms into water which slides down towards the edges.  As water accumulates at the roof edges and rain gutters, the water freezes as it contacts outside air which is colder than the roof surface.  Over time, the result is the formation of spectacular icicles – some reach one storey and more!  The greater the heat loss is, the greater the thickness of the ice barrages behind the icicles and the greater the length of the icicles.

When there’s a major thaw and rain with temperatures reaching at least +6 degrees Celsius, even in the Laurentians, infiltrations begin.  Frequently though, these do not come from the roof as such, they occur horizontally, from the edges.

In fact, the weight of the accumulated ice in the gutters opens up a joint on the edge of the roof, on the ledge or in the soffit, and the water leaking under the accumulated snow and ice in the roof penetrates to the ceilings.  To the greatest surprise of homeowners, even when ceilings have a slight slope, infiltrations can manifest themselves a good distance from the exterior wall.

It’s Raining in my Bed

To my greatest disappointment, this is what my family lived through at the summer cottage of my in-laws in the Laurentians, following a successful surprise party given for André Fauteux, editor of La maison du 21ième siècle.  Water started dripping from the ceiling onto our beds in the middle of the night.

Unfortunately in such cases many homeowners mistakenly blame their roof while the origin of the problem is the house’s heat loss.

Roofers are called in by panicking homeowners, and repairs are scheduled, even if no one has determined what the real cause of the problem is.  Redoing a roof when it is not necessary is a very costly additional energy loss.

Certain customers have told me that they have had their roof completely redone two or three times in 10 years but the problem has not disappeared.  This is outright robbery by the roofers!

In fact, as unbelievable as it may seem, many Montreal eaves contain only from 0 to 4 inches of insulation.  (Note:  It is generally more advantageous to install from 12 to 14 inches for a thermal resistance of R-42 to R-49, if cellulose is used, it being the most economical insulation for attics.)
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It’s really amazing how every winter is different.  Some years we have truck loads of snow and some years like last year, we hardly had any snow left for family sugar shacks in March!

I’ve recently heard many people discussing the amount of snow on their roof tops and the complications related to removing some of it by necessity.  Is it really necessary to remove it?  Well apparently in some cases it may be recommended, but how to go about it? Well, while surfing different web sites I met with the Roof Rake which seems to be quite the tool to do the job.  I found the following quite interesting for people eager to remove excess snow on their roof tops!  Here’s what they had to say;

If you live in an area where you get a lot of snow, you probably give a great deal of thought to getting rid of the snow that accumulates on your sidewalks and in your driveway. But that’s a relatively easy task - get out the old shovel or snow blower and have at it.

But a simple task as shoveling one’s sidewalk is not always as easy as its cracked up to be. Snow is very heavy, and if you go at the process of its removal too enthusiastically with a shovel you can get a back-ache or blisters on your hands. And at least a handful of people a year lose a finger to a snow blower blade because they reach in with their hand to clear a jam, rather than using a long-handled broom handle.

Sidewalks are flat - there’s no way to get around shoveling them after a heavy snowfall. But what about your roof? Most houses in areas that get a lot of snow have inclined roofs so that the snow just slides off. However, there are occasions when snow accumulate on your roof, and because snow is so heavy it simply must be removed before it does serious damage to that roof. Even if you know that your roof was built to withstand all that weight - there’s another reason why it should be removed. Melting snow can cause icedams in your gutters…so that as more snow melts the water has nowhere to go except into your ceilings.

Don’t Climb On Your Roof

Even if you’re able to get out onto your roof during the middle of winter - it would be best if you didn’t do it. Climbing around a dry roof is hard enough - trying to walk up and down a sloping roof covered with snow - which might be obscuring the ice below it - is the height of folly…and falling.

The solution is a roof rake, which you operate from the ground.

Safety first

Whatever roof rake you use - do not use it near power lines. Let me repeat that - do not use it anywhere near power lines. Even if you’re a dozen feet away from a power line, if you lose control of the rake for any reason, it’s length is such that it could quite easily tilt over those dozen feet, hit the power line, and give the operator quite an unpleasant shock, to say the least.

Various Models

There are quite a few snow rakes on the market. The Minnesnowta Roof Razor is one design that is built and sold out of the state of Minnesota - and what native Minnesotans don’t know about protecting their homes from snow isn’t worth knowing.

The RoofRake enables the operator to reach up over 26 feet, which should be more than enough to get most of the snow off one’s roof.

Like the other designs, the Philips Snowcutter cuts through ice and snow, but protects the roof shingles by not allowing the rake to actually touch the roof itself. Philips claims that their snowcutter can clear a roof in half the time it takes a roof rake.

So check out the web, check out your local stores, and then get yourself a tool well-suited to ensuring that your roof and house suffer no damage during the next winter storm.

Though pretty funny, seems to me like a good alternative to other costly solutions… Here’s a web site that sells the tool in the US and in Canada, www.roofrake.com   I even saw one for sale on  amazon.com!

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