The flat concrete roof itself can be up to 7 inches thick although the greater the thickness the more the concrete will need be poured in increasing numbers of layers with each.
How to build a concrete roof of a house.
There are two ways to make a framework for a flat concrete roof.
You can either use removable concrete forms or forms that are made of concrete and insulate the house.
Attach your roof to the building using nails or screws.
So the recommended criteria for the minimum quality of the concrete to be used in an exposed concrete roof deck should be on the side of higher strength.
To make a grout you will need sand and portland cement.
Add some water to get a flowing consistency.
A solid slab of concrete capping the top of your house.
But these advantages come together with a few drawbacks such as the higher cost of the project or the fact that pouring a concrete ceiling may take up to several months until you can actually build the walls and the roof.
To build a roof start by deciding whether you want to put up a flat or pitched roof on your building.
You may set prefabbed trusses on the roof or stick build it.
A concrete roof is exactly what it sounds like.
A grout will hold the flat concrete roof in place.
Step 10 pouring the grout.
Apply a suitable roof sealer to your roof if you have a cast in place concrete roof.
Regardless place the roof framing on 24 inch centers and attach them to the wall plate using roof framing storm ties metal straps that help hold the roof onto the house walls.
Building a concrete ceiling will increase the phonic insulation and durability of your house.
Exact specifications vary but most concrete roofs are several inches thick.
For this step you will have to make the grout mixture.
Next measure the area and make calculations so you know how much of your chosen materials to buy.
This is an unusual situation but there are homes with cast in place concrete roof systems and typically roofing cement and fiber reinforced roll roofing is applied to the roof to prevent water intrusion.
Concurrently the roof for a house is not a particularly large or costly element of the total cost of a house.