It is important to choose brass screws since brass will not rust until iron screws.
Putting a new roof on warped support beams.
Step 2 the conservatory roof is carefully removed leaving only the windows doors and and brickwork in place.
Usually trusses are put 24 inches apart.
Then lower the jack down a little at a time so that the metal can take the weight of the roof.
With the beam resting on the beam ledgers attach a pair of 2x4 side cleats to the king studs at both ends of the beam.
Raise the house beam by pumping the hydraulic jack very slowly using short strokes.
Measure from the floor to the beam to monitor the beam s rise.
Remove the jack quickly and set the iron onto the entire beam.
Total to release the weight from each post.
Continuing on from part 3.
Here we have a wood framed gable roof.
The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial.
Nail or screw these cleats into place so that they box in the beam.
Let s consider a basic gable wood roof framing design.
Floor beam span tables of residential structural design we will now look at roof rafter and beam design.
Drive the remaining carriage bolts into the two by six rafter and tighten them all up.
Make a cutting on one of the sides of the horizontal roof beam on an angle.
When all the trusses are installed and the first row of decking is on this brace is removed.
It s time to start restoring the structure marking an important moment in the house s history.
Have an assistant simultaneously raise the shoring post as tight as possible against the beam to provide backup load support.
This effectively creates channels on both sides of the beam ensuring that you ll be able to lift the beam upward without fear that it will slip off the ledgers.
You have to do it thoroughly so that the rafters sit flush on it.
If required you will need to use something that forces up the roof while you are working the new beams into the right place and fastening them securely.
Long story short it is possible to put steel on this type of roof but have a contractor look at it first and make sure you are not just hiding a disaster waiting to happen.
It can be nailed temporarily to each truss as the next truss is put in place.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Sometimes a sagging roof line can be fixed with a few new joists and osb sheeting but sometimes it is cheaper and smarter to remove the entire roof and replace with engineered trusses.
A new timber ring beam is fitted alongside the existing windows to support the new roof structure.
Make sure that while you work you push the roof upwards.
Place the jack back underneath the beam but this time under the iron piece.
The pitch of the toof is significantly increased to provide additional strength and durability as well as providing a better internal space.