Winter water & ice damage?
This has been a tough winter, especially when it comes to our roofs. As a result of the cold weather, snow, and heat loss from a house, ice can and will build up on the roof. What happens is this: Heat rises – it rises inside of the house, up towards the ceiling, and to the roof. That combined with lack of insulation, at times, allows the heat from within the house to protrude through and up into the roof cavity. Then as the temperature drops, the melt turns into ice. The ice then expands and can build up at the bottom of the roof. This process repeats itself every day, and what’s left is a big hunk of ice at the edge of the roof – and here comes your problem. The ice expands and then inevitably works backwards; it starts moving up and under the shingles. What happens then is it can break the seal between the shingles, it then works its way behind the shingle and if the right product isn’t underneath the shingle, the roof will leak. When this water comes in it will go through the insulation and through the sheetrock, initially leaving a brown watermark, and it could cause mold (which is a huge health hazard).
To help avoid having a leaky roof, first make sure that your house is properly insulated – even overly insulated is great! Proper ventilation of the roof cavity is also key. And lastly, if you’re at the worst case scenario where a new roof is needed, make sure that you hire a qualified individual and that he uses quality materials – and that the materials are applied correctly.