Mistakes That People Make When Installing Roof Flashing For Tiles

Clay tile roofing Auckland needs high-quality roof flashing installation to maintain the life of the tiles and prevent water leakage. It also helps to prevent structural damage to the interior of the home and the roof base. Some roofers make the following mistakes but you can easily avoid them. You can save a lot of money by avoiding these errors.

Poor quality materials

You may save money in the beginning by using aluminium flashing but with time, aluminium may not resist the harsh weather conditions. Your roof will have a deteriorated underlying support within a decade. You will be forced to spend more money to make structural repairs and redo the roof flashing. You can prevent this mistake by buying soft copper, sheet copper, galvanized steel or lead coated copper.

Low roof slope

Check the slope of the roof before you install flashing and the clay tiles. Make sure the slope of the roof is at least four and a half. If you use a slope of 3 you will end up having a roof that cannot drain the water irrespective of the quality of the materials of the flashing.

Inadequate flashing around the vent pipe or the chimney

This is also another common mistake. If you do this, you will damage the chimney and this can make it collapse. Make sure you install an aluminium sub-layer around the vent or the chimney. The flashing should extend up the side of the chimney 6 inches. You can use the flashing to create a pan effect. This will fold to extend under the clay tiles. Roofing companies Auckland use metal flashing that is at least nine inches wide to achieve a good level of protection. You can conceal the overlap by adding a counter flash.

Valley flashing that is too narrow

Don’t skimp on the valley flashing on areas of the roof where the tiles slope away from each other. Some municipal codes require the valley flashing to extend 11 inches under the tiles on each side from the valley’s centre.

Valley flashing that is too rigid

Using a valley flashing that is too rigid will warp and twist when cold precipitation freezes and then melts. You should avoid nailing the valley flashing to make it immobile. You must install valley flashing sections with cleats to allow for temperatures changes. Temperatures changes can bring about expansion and contraction of the material and this can create a problem if you don’t allow enough space.

Insufficient terminal for covering the flashing

It is important to use sufficient layers of the terminal tile such as hip roll tiles, hip tiles and ridge boards because failure to do so will damage the tile roof flashing. This will allow water to get under the roof and make the tiles to be unstable.

The best way to avoid the above roofing Auckland problems is to hire a qualified roofer. Don’t just hire any roofer. Hire someone who is experienced in installing clay tiles. Anyone of the above mistakes can make you spend a lot of money in the long run. Read more: https://www.archerroofing.co.nz/new-roofs/