Awasome Replacing Roof Trusses References. Roof trusses come in a variety of. The most important of these are the roof trusses and the purlins (the horizontal.

There is always the possibility in older properties that your rafters, joists or trusses may have dropped at one end because over time the timber has become rotten and compressed due to long term exposure to damp. Labor cost to set and install: The most important of these are the roof trusses and the purlins (the horizontal.





