Rain Blowing Under Roof Tiles

Cement tiles are a fantastic choice for areas with extreme wind.

Rain blowing under roof tiles.

This is usually the result of a poor selection of skylights or a faulty installation. The membranes won t stop the ice but will stop water leaks if installed properly. The trouble is it is difficult to find the cracked tile without putting up a ladder and having a good look. If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent.

Some skylight installations leak the day they are cut into a roof. Hemming the edges of the roof means bending the underneath to an angle of 180 degrees. When the fascia cover is blown off the ends of the soffit panels are ex posed to wind and wind driven rain. Hemming the roof edges.

Wind driven rain will batter your roof and water will escape through any cracks no matter how small they are. The good news is replacing a cracked tile is a twenty minute job in most cases. Cement tiles give the appearance of a tiled roof but the cost is comparably cheaper. The only means of prevention is to install membranes under the roofing.

Aluminum fascia covers are typically tucked under the roof drip edge and face nailed every few feet. If the roofing felt has not been lapped correctly around the pipe with adhesive then this can create a void which water can breach. It this is the case you need to create a breathable shield to slow the driving rain drops while still allowing air flow. Here is a sample pic of the valleys.

There are four that leak a bit and two of those a fair bit. Wind driven rain can also be a major problem. This video shows one possible way to do that. Could it be that the water is blowing back under the vent tile.

It is quite possible that your roof doesn t actually have a leak but the wind driven rain can cause the sheathing to get wet inside and this may give the appearance that you have a leak when you haven t. Only drips really and only in heavy rain when the wind is blowing in the right wrong direction. It s a concrete tile roof and the valley between the main roof at 45 and another smaller section that is also at 45. This will stop the rain getting under and causing roof leaking by wind driven rains.

If you can get into the loft next time there is heavy rain wind see if the pipe is wet at all. Wind blown rain leaks. The irc currently has no guidelines for the instal lation of fascia covers.