Installing a damp proof course

initial cut through the wall

Step 1:
The surrounding area is covered up with drop sheets protecting the floor and furniture. A horizontal cut is made through the mortar in the first practical course of brickwork above the floor level. This process is carried out one metre at a time. Cavity walls are cleaned of rubble and debris to prevent bridging of the damp course.

 

 

Step 2:
The Polypropylene Damp Proof Course measuring 2mm thick is inserted and overlapped to provide a continuous barrier against Rising Damp. Non-corrosive Aluminium wedges are then inserted between the Polypropylene and the above brick course for extra support. A Vertical Membrane Skirt (heavy duty Forticon plastic) is inserted at the Damp Proof Course level down to between the floor and wall (where practical) to protect the floor boards and skirting from dry rot.

 

Step 3:
The brickwork is then re-mortared (bricks are returned/replaced and re-mortared on cavity walls) ready for rendering/plastering. The Damp Proof Course installation will prevent RisingDamp from reoccurring in the future. However, the existing wall surface, if rendered/plastered surface, above the newly inserted Damp Proof Course will still show the effects of the Rising Damp. In order to rectify this, DampShield recommends stripping the damaged render/plaster up to one metre high to expose the brickwork. If required, this procedure will be carried out at the time of Damp Proof Course installation.


During the drying out period, salty deposits in the brickwork will surface depending on humidity levels. These salt deposits need to be neutralised to prevent damage to the new render/plaster. DampShield includes a Salt Neutraliser additive to the render/plaster preventing any future salt activity, returning the wall surface back to its original condition for painting.50 year guarantee

More on rising damp


Stay one step ahead

Now that Summer is over, it's never too late to install a ventilation system ready for the colder months to hit.

Winter months encourage mould growth. So protect your valuables now and get the right air flow.

Ecofans for the sub-floor.

Ecofans are installed to improve sub-floor air quality and reduce humidity levels beneath the floor.

Take a look at the different ventilation systems available