Where Leaks Are Most Likely to be Found

Roof VentilationI don’t think you need to be told how much of an annoyance roof leaks can be. If you deal with them frequently enough, then you probably have a good idea of where some of them usually turn up. The upside here is that some of these leaks are predictable. This is particularly true as your roof ages.

As long as you are aware of areas that are prone to developing issues, then you can easily prepare for them in advance. Doing so might reduce roof repair costs significantly. Here are the areas that you might want to pay closer attention to:

The Perimeter

Leaks tend to occur near the edges of roofs due to the transition from membrane flashings to sheet-metal flashings. If you’re going to check this area in advance, then it’s highly recommended that you take note of two particular issues. First, the sheet metal flashing should shed the water. Second, the sealants which hold the pieces in place tend to deteriorate over time.

Water problems also tend to develop around the perimeter expansion joints. You may want to consider pre-manufactured roof accessories to address the areas where both contractions and expansions are going to occur. Keep in mind that you also need accessories that are compatible with the roof membrane.

The Penetrations

Having sealants and flashings at penetrations through roof membranes are common areas of concern. Penetration flashings are usually made from the same materials as roof membranes when it comes to single-ply roofing systems. Be sure to inspect the laps, the sealants, and the seams at these areas on a regular basis.

You may even want to consider avoiding penetrations altogether. Conduits, ducts, and other pipings that run horizontally across roofs are usually placed on solid supports that penetrate and are anchored to roof membranes. To avoid penetrations, get products with adjustable heights as well as soft feet that can rest on the membrane. If a horizontal element is truly needed, then build curbs and secure the element supports there.

Considering Condensations

Your roof may seem like leaky during months like January, when the temperature dips below freezing. However, that’s not actually the case. What’s really to blame is the condensation that occurs when cold air leaks through the structure’s exterior. This problem exists due to the lack of sufficient ventilation. To fix this problem, you can have a fan installed to move moist air out of these cold spaces.