Data Sheet:
Ground Floor - Solid Construction Data Sheet
- Information suitable for:
- New build
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Technical information
Fill floor area with compacted hardcore and sand blinding to correct depths and height. Lay DPM over sand blinding then pour and level concrete to specified depth including any required steel reinforcement. The level of the floor should be carefully calculated during excavation to ensure the finish is at the correct height below the doorway thresholds to comply with Part M of the Building Regulations.
A 30mm PIR upstand should be installed around the perimeter of the floor and continued up the wall to meet the bottom of the plasterboard. Using this method will reduce the Ψ value achieved at this junction.
Lay 120mm PIR insulation on top of the concrete slab with all joints taped and sealed, finished with a layer of screed on a VCL. This method will reduce compression of the insulation which can occur when the insulation is placed under the concrete slab and allows for easy installation of underfloor heating by using pipes laid on the insulation secured with proprietory retention clips.
Fill floor area with compacted hardcore and sand blinding to correct depths and height. Lay DPM over sand blinding then pour and level concrete to specified depth including any required steel reinforcement. The level of the floor should be carefully calculated during excavation to ensure the finish is at the correct height below the doorway thresholds to comply with Part M of the Building Regulations.
A 30mm PIR upstand should be installed around the perimeter of the floor and continued up the wall to meet the bottom of the plasterboard. Using this method will reduce the Ψ value achieved at this junction.
Lay 120mm PIR insulation on top of the concrete slab with all joints taped and sealed, finished with a layer of screed on a VCL. This method will reduce compression of the insulation which can occur when the insulation is placed under the concrete slab and allows for easy installation of underfloor heating by using pipes laid on the insulation secured with proprietory retention clips.
Hints and Tips
Once walls are up to DPC level the DPM should be installed and the concrete poured so that the DPM can continue up and across the wall to be continous with the DPC to form a complete damp barrier.
Hardcore should be compacted in stages no more than 75mm deep.
100mm PIR insulation installed in the wall cavity below DPC will further decrease the Ψ value achieved at the junction between the floor perimeter and external wall.