A professional roofer will use exact measurements from the home s construction along with framing and truss dimensions to calculate the type of roof over will work best.
Installing trusses over flat roof.
How to install trusses on a roof.
Workers manually move the first truss to the end of the roof and stand it up positioning it on the corresponding number on the wall plate.
A flat roof truss is also known simply as a flat truss and is not completely flat but rather slightly sloped in order to allow water to run off of the roof.
After constructing your trusses now you have to get them safely to the top portion for installation.
Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube.
Once in place the workers nail the truss to the wall.
This four foot truss spacing allows for 2 4 roof purlins to be placed flat on top of the trusses.
Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option a properly installed layover roof can look and function as well.
If you want to build a flat roof then you will need to build a flat roof truss.
Installing the new roof to provide a framework for the new trusses nail 2 by 6 inch strips of wood around the perimeter of the roof.
Homes with flat roofs of bowstring trusses pose a problem because they are not strong enough to withstand the weight of a new roof.
These are designed to span the space between two load bearing walls and take the weight from the roof onto these walls.