A slate roof can last for a century, and it is one of the major reasons that people choose this material over others. Besides, it comes with a myriad range of styles, hues, variations and patterns, giving your house an aesthetic appeal. Are you planning to install a slate roof? Here are a few important things that you need to know. Read on!
Where it comes from
It is not enough to know the cost, colour of the slate and the name of the slate manufacturer. The most vital aspect that you need to know is the origin, which is the name and location of the quarry. This information is crucial because not all quarries hold the same reputation and provide customers with warranties. Look for the slates that last for seven decades; a century is better. Furthermore, they should guarantee that if the manufacture will pay to replace the slate if it develops pyrite stains or any coloured streaks.
Sidelap and headlap
Slates must overlap each other to make sure that the water does not enter your house. The installers draw lines on the felt underlayment so that the overlap is adequate. Slates must overlap 3 inches on the side which is called sidelap and must overlap on the top which is called headlap. First, calculate your roof pitch, and then determine the inches required for sidelap and headlap. To guard against ice damming, 2 inches headlap must there near the eaves.
Slate nails must be of stainless steel or copper because these can last long as the slates themselves. Do not choose electro-galvanised nails because they will last only for a couple of years and may rust. The length of the nails is also important. The correct length should be double the thickness of the slate. If the nails are of perfect size and length, they will not punch through the roof sheathing.
Organic roof felt must be used as an underlayment because it will help the slates to breathe. The felt will safeguard your house from the adverse climate and also keep the slates safe. It is best to take guidance from the roofers about the same.
Also known as decking, it is the wood in which the slate is attached to. Generally, the wood will last more than a century to support the slate roof. The proper sheathing is single plank boards which can be 3/4th to 1 ½ inch thick. Different categories of wood will work, except laminate woods, plywood and particleboard. These are made with glue and have no longevity.
Right technique and equipment
Roofers must carry the right tools in their bag. Hooks, slate cutters, rippers and hammers are some of the most common traditional tools. Professional installers must know how to mix up the slate during the work and avoid an abrupt change in the colour.
Now when you know which factors to consider before roof installation, contact The Slate Roofing Company and the friendly team will help you by designing the best slate roof for your house! The Slate Roofing Company services all of Sydney, the South Coast and the Southern Highlands.