Today, I have an intermediate floor whose ceiling needs to be redone from below.
The floor construction consists of timber beams with an assumed dimension of 170x170, spaced at 900 centers. They might be slightly thicker. Probably notched into the outer walls.
The span is 4.70 without support.
The area is 24 sqm.
Today, the floor is loaded with the following, viewed from above:
Pine floor 28 mm
Floorboards 28 mm
Floor fill in the form of a builder's mix
Ceiling planks 28 mm
The assumption is that this provides a load of 1500 kg.
The old ceiling planks have (unfortunately) been ruined for a long time by layers of plastic paint and attempts to seal drying cracks. It needs to be redone. Therefore, the idea is to nail up a panel that is 15 mm thick on the existing ceiling boards. This will add an additional load of about 200 kg.
Tearing down the existing ceiling planks would create a massive amount of extra work since the entire fill of the floor would come down. Prefer to avoid this.
Considering the long span without support, the question is whether there is any apparent risk in further loading the existing construction, given that it ultimately results in an increased permanent load of just over 200 kg.
Some deflection is already present today.
The floor construction consists of timber beams with an assumed dimension of 170x170, spaced at 900 centers. They might be slightly thicker. Probably notched into the outer walls.
The span is 4.70 without support.
The area is 24 sqm.
Today, the floor is loaded with the following, viewed from above:
Pine floor 28 mm
Floorboards 28 mm
Floor fill in the form of a builder's mix
Ceiling planks 28 mm
The assumption is that this provides a load of 1500 kg.
The old ceiling planks have (unfortunately) been ruined for a long time by layers of plastic paint and attempts to seal drying cracks. It needs to be redone. Therefore, the idea is to nail up a panel that is 15 mm thick on the existing ceiling boards. This will add an additional load of about 200 kg.
Tearing down the existing ceiling planks would create a massive amount of extra work since the entire fill of the floor would come down. Prefer to avoid this.
Considering the long span without support, the question is whether there is any apparent risk in further loading the existing construction, given that it ultimately results in an increased permanent load of just over 200 kg.
Some deflection is already present today.
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