Roofing Contractor Richmond Hill | Richmond Hill Roofer

By: Genesis Roofing  09-12-2011
Keywords: roofers, roof

Our roofs are different from our competitors. A few of the differences are as follows:

Before starting, all grounds are secured. Tarpaulins and plywood are used to control garbage being removed from your roof. All loose wood is re-secured to the joists and damaged or rotten wood is replaced.

Valleys are the channels on your roof where two roof slopes intersect. This is a critical area on your roof. Deteriorated or improperly laid valleys will result in a large volume of water entering your home. There are different methods of installing valleys as well as options on types of material used.

The most commonly used valley is a ninety pound mineral surface. This valley, if properly installed, is guaranteed by the manufacturer for only 10 years. The lowest grade shingle is guaranteed by the manufacturer for 20 years. These products aren’t properly matched. This type of valley will not last the duration of the roof and will result in expensive service.

Another common practice is the closed valley technique. This is where there is no exposed water channel and the shingles overlap directly into valley. This is the cheapest and least time consuming method of installing a valley. The main disadvantages of installing this type of valley are two-fold:

     a.) the shingles that overlap in the valley will deteriorate more rapidly due to the large volume of water            flow and

     b.) locating and repairing leaks are more difficult in this type of valley.

Many roofers are now using aluminum valleys. Due to their high rate of expansion and contraction, aluminum valleys shouldn’t be used. Within one or two years, this will cause the nails securing the valley to loosen, resulting in a roof leak.

Genesis Roofing uses only pre-finished steel metal valleys, of which there are two options: the W-valley (more expansive but sheds water the best) or the standard straight valley.

There are two main advantages of using the “W” style valley. First, the raised center of the valley helps prevents backwash on heavy rains, (water running down the roof and under the low side of the valley, resulting in a leak). The raised center of the valley also picks up heat to help keep a water channel open in heavy ice conditions. This helps to reduce ice buildup in the winter.

Our valleys are all two-ply, a 90-pound underlay, (to deal with condensation on the bottom side of the valley in the cold months), then the steel metal valley on top, as required by code. We then line our valleys to prevent leaking due to ice buildup. The lining of the valleys makes them more pronounced, improving the aesthetics of your roof.

Our valleys are also tipped, which dramatically reduces the chances of leaking in heavy rains. Tipping is becoming a lost art, and most roofers don’t even know what a tipped valley is. We perform numerous services each year on other roofers’ work due to valleys not being tipped. These procedures as outlined above add an average cost of approximately $75 per valley to your cost. Extra materials used, and higher labour charges, result in more consideration given to a quality job. Again, you get what you pay for.

Genesis Roofing lines all gables. The result is more materials and labour used on your job. The main purpose of lining gables is that your roof will stand up better in high winds. The winds will be pushing on a total slope of your roof, instead of the individual tiles. This could eliminate costly repairs due to high winds. Lined gables also improve the aesthetics of a house, due to the edges being straight instead of jagged and curled.

The information in this article was current at 06 Dec 2011

Keywords: roof, roofers