Timber beam-end engineering repairs - Project 6 continued

Part of a Crook Frame Truss, connection saddle T.R.S.

Click on any of the images for a larger view.

Close view of the principal rafter connection head. Additional holes are now drilled into the bar holes to allow the injection of resin and air escape holes. Note the location holes in the tenon.

Both T.R.S. are placed into position, with the top location peg providing alignment. Clamped down onto the tenon, with the T.R.S. drilled through to locate the existing holes on the springer tenon.

On the other side, four location dowels are inserted.

One of the points about T.R.S. applications is that the job must always be dust free, not esy when dealing with cob and thatch.

Rotafix resins.

The T.R.S. is bonded at the joint with a timber bonding paste to prevent loss of resins.

Other side face bonding.

Resin is injected into the dowel holes.

Steel bars inserted.

And finished with timber plugs.

Next the lower connection bars are injected until resin can clearly be seen to escape from the air holes.

Timber plugs are inserted.

Once set the whole unit is sanded down.

Replastered, and best of all 'invoiced'.