Suspended Timber Ground Floor Repairing Rotted Joists

I suspect this is due to poor ventilation.

Suspended timber ground floor repairing rotted joists. This defect action sheet covers suspended timber ground floor. A new piece of timber is cut a to replace the damaged piece and the joists plates are. Intended to remind and inform designers and site supervisory staff of ways of avoiding some of the most troublesome defects which have beset local authority housing. We look at this more thoroughly in our air bricks and air vents project but quite simply if air bricks become blocked with debris or ground levels are raised this cuts off the air flow and water leaks may.

This will have been dug out from whatever earth the house stood upon and may remain just as it looked at that time. 175 mm timber joists and 18 mm timber boards. Let s look at the way a suspended timber floor is made starting from the lowest ground level beneath the floor. Suspended floor with timber boards and joists nbs.

And rot in replacement timber. Suspended ground floors these are almost always timber but composite concrete floors are also being laid nowadays. Platform compatible version certified to ifc 2x3 1 0. There s ventilation bricks at the front of the house which are all clogged with dirt and barely above ground level on the outside under ground level on the inside.

Joist repair plates fixed to timbers. The floor can be formed in various ways using timber joists precast concrete panels block and beam system or cast in situ with reinforced concrete. Many buildings with suspended timber floor suffer from rot and insect attack in the ground floor timbers due to poor sub floor ventilation. A suspended floor is a ground floor with a void underneath the structure.

The floor over the timber is sagging in several places and after a peek under the floor it looks like there s a problem with wet rot. However the floor structure is supported by external and internal walls. How to position fix and align joist plates.