Most houses, these days, feature concrete roof tiles, but this wasn’t always the case. For many years, clay tiles were also a market leader, and while these tiles are still used, it is the concrete roof tile that has dominated the market. And for good reason. It must be noted that whether you are using clay or concrete tiles, they’re resistant to fire. However, concrete tiles tend to be more affordable than clay tiles.
One thing to take into consideration is that of the weight of concrete tiles. They certainly aren’t the lightest roofing material available, and therefore it must be determined if the roof structure can support the weight of the tiles. This, however, does not take away from the demand for concrete products. In many respects, their weight makes them a more durable option to others that can be more easily blown off in strong winds.
Preparing the Roof Structure for Concrete Tiles
It is important to ensure that the roof structure is correctly prepared before the tiling is done. When installing concrete tiles, it is important to ensure that a waterproof barrier is correctly installed beneath the tiles. This is to ensure that in rainy conditions, no water gets past the tiles. It is important that a bit of extra waterproof barrier is catered to, in order to provide run off over the sides. The waterproof undertile membrane must be installed horizontally over the rafters, and be firmly secured with clout nails. Allow for a natural droop of the membrane over the rafters, but don’t leave it too loose. At the side of dormers, chimneys and skylights, the barrier should be turned up instead of cut. It is also a good idea to use adhesive flashing in these areas, for extra waterproofing protection. If your waterproofing is ripped or sustains holes during the installation process, it is absolutely essential to repair these before the tiles are installed.
Good Roof Tiling Practices
When tiling with concrete roof tiles, there are codes of practice to be followed. In southern Africa, roofing specialists must adhere to the SANS Codes of Practices. Before tiling can take place, the roof structure, whether new or old, must be inspected and reinforced if and where necessary. Rafters and trusses must be compliant with the SANS 1783-200 standards, in terms of stress-graded soft-wood structural timber. The battens used must be SA Pine, and be compliant with SANS 1783-2004 standards.
The fixing materials must be durable. When using nails, make sure that they are designed to withstand exposure to the elements. Also, when installing a roof in coastal regions, corrosion resistant fasteners should be used. While the nails must be long enough to secure the tile while penetrating any battens, it is also important to ensure that they do not damage the undertile waterproof membrane.
When the tiles are laid, the tiler must install a full row of tiles along the eaves and along the ridge. This is done to ensure that a correctly balanced overhang is possible at both verges. This also ensures that perfectly perpendicular rows of tiles can be achieved. Once the main frame of the roof is set, the rest of the tiling can be done with confidence.
Get Your Concrete Roof Tiles at Marley Roofing
At Marley Roofing, you will find a range of concrete tiles in various colours and styles. It’s best to pay a visit to your local branch. We have branches in Gauteng, KwaZulu-Natal, the Western Cape and Mpumalanga, as well as in Botswana and Zambia. All of our products are designed to meet with SABS ISO 14001 and SABS 18001 standards. We are also a PWC ISO 9001 certified company. All of our team members are familiar with our products and the process of roofing, which means that you won’t just find top-quality products in our stores – you will also be provided with useful roofing advice and guidance. One of the best things we can give you at Marley Roofing is complete peace of mind that you are making a sound investment in our products.
For all your roofing supplies, turn to a Marley Roofing in your area. You can contact us via email or telephone, or you can connect with us on Facebook, Twitter, Pinterest, LinkedIn or YouTube.