How To Lay A Concrete Roof

1 position a roll of 60 or 90 pound underlay at one side of the roof perpendicular to the lower edge of the roof.

How to lay a concrete roof.

As the width of the concrete slab is 16 3 4 inches place the steel joists at this distance. Secure the end with nails. When you reach the end of the roof cut the underlayment roll to match the edge. Check the labeling before choosing the flashing.

A solid slab of concrete capping the top of your house. Exact specifications vary but most concrete roofs are several inches thick. The first section of the tiles is cut to size and attached to the roof starting at a lower edge and working up. Use roof adhesive to fix down the tiles as each one is slid into place and nail the tiles down.

Use the flashing to cover the outside edges of your roof. Roll out 10 foot 3 m long sections at a time and then secure it with nails separated by intervals of 24 inches. Let this dry completly. This will give it the support it requires.

Firstly get two of your roof tiles and either two full battens or two offcuts of batten and place them onto the roof one above the other. Keep all nails at least 2 inches from the edge of the roof. Step 5 placing the concrete slabs. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.

Otherwise attach the tiles to the roof felt. If the roof s edges are longer than the flashing available for purchase you can connect separate pieces together. A concrete roof is exactly what it sounds like. Make sure the tile lugs are seated snuggly onto the top edges of the battens.

Attach the roof tiles if there are roof battens nail the tiles to them. Next place the concrete slab on its face. For a concrete roof we would usually clean and scrape the surface of the roof until all old moss and dirt is gone sweep it spotless then apply two coats of bitumen primer which will soak into the substrate and give you a good surface to start on. How to tile a roof if you would prefer to read how to tile a roof and see more help please visit this link unless you found this video via my website.

The steel joists will provide a strong foundation for the flat concrete roofing. The open end should face sideways. Installing a cement tile underlay is easier with the help of an assistant. The bottom of the joists should rest on either a beam or a wall.