To build a roof start by deciding whether you want to put up a flat or pitched roof on your building.
How to build a small pitched roof.
Make sure that this timber has been cut down to the right length.
Purchase your materials including prefabricated trusses plywood covering and roof tiles.
Now you have to add a beam from the timber on the high side of your sloped roof.
I show how i construct it showning in detail how to do the lead flashing.
Step 1 layout the pattern rafter after you decide to build a pitched roof you can layout and cut a rafter pattern.
Cut back the joist to allow fixing of front wall plate so that the front wall plate fits flush with the external front wall.
If you are building a bigger roof or don t have the luxury of a having a concrete roof as a base then you will need to design your roof to suit your application if you were to just scale up my design it may end up beeing too weak for your application.
How to build a pitched roof frame.
This is a small non structural pitched roof.
Next measure the area and make calculations so you know how much of your chosen materials to buy.
In case you are installing off the side of your wall then you need to bolt the timber in its place keep it firm and by making use of a spirit level you need to ensure that it s levelled.
Subtract the length of the tile that will overhang the roof to allow any off flowing liquid on the roof to flow into the gutter.
This wall plate will sit on the first skin brick work.
The result of that calculation is your first fix point where the top of your first batten will sit.