Rising Damp in your walls – What can you do?

Rising Damp in your walls – What can you do?

What causes rising damp in houses?

Causes of damprising dampness. Usually occurs on the ground floor and the damp suggests it is localized at the bottom of your walls. The cause of the damp results from the damp proof course being penetrated by moisture. Faulty or non-existent damp course, breakdown of damp course all can cause rising damp.
Rising damp is mostly occurs to brick and masonry structuresRising Damp in your walls - What can you do?, cementitious coatings against hydrostatic pressure,

Why Rising Damp is a Problem?

Rising damp not only affects the great appearance of a home. The signs of rising damp are seen with the paint bubbling, cracking, salts efflorescence and mildew or mold on the walls. Can occur on the outside as inside your house. If walls remain damp, over time, it impacts on the structural integrity of a house through rotting timber, degrading of the structural integrity of masonry and brick. Damp areas may attract termites (I had this problem in a single brick or leaf wall in my garage). More effects caused by the increased moisture in the walls can cause rusting of any reinforcement steel, create condensation, can damage furniture and soft furnishings, and even cause health problems to residents.

Prevention & treatment of Rising Damp.

What can you do to stop rising damp?

Luckily, modern waterproofing methods means damp rising up your walls can be treated properly and prevented from reoccurring.

  1. Correct installation of damp course – often damp course is ineffective as it finishes within the mortar line. Water can then enter below the damp course.
  2. The wall has been rendered and allows water to wick up the wall – requires a waterproof barrier.
  3.  Repair the damp-proof course, usually means removing a brick course and reinstalling the damp course correctly. Ensure joins in the damp course are sealed properly
  4. Mortar from the brick or block mortar lines may be filling the cavity prevent water draining from weep holes.
  5. Clear weep holes from mortar debris.
  6.  Drill couple holes into each brick just around the floor level and pump in a silicon-based waterproofing mixture under high pressure. Forming a waterproof barrier preventing the water from wicking up the wall bricks.
  7.  Using cementitious waterproof membranes such as Drizoro Maxseal Foundation

This video shows what Drizoro Maxseal Foundation can do when you have a significant water penetrating through a besser block basement car park wall.

In this video show how to apply the Drizoro Maxseal range of products

Drizoro Products – Quick Links

Drizoro Maxseal Flex | Drizoro Maxseal Flex-M | Drizoro Maxseal Foundation | Drizoro Maxseal Foundation Super | Drizoro Maxseal

Other Materials that may be required
Rising Damp (structural)- Wikipedia
Jump to Rising damp – Historical context – Rising damp is widely referred to in Victorian … for a damp-proof course in walls to prevent rising damp. ‎

Structural dampness is the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or condensation from within the structure.

A high proportion of damp problems in buildings are caused by ambient climate dependent factors of condensation and rain penetration. Capillary penetration of fluid from the ground up through concrete or masonry is known as Rising Damp and is governed by the shape and porosity of the construction materials through which this evaporation limited capillary penetration takes place.

Structural damp, regardless of the mechanisms through which it takes place, is exacerbated by higher levels of humidity.

Humidity · ‎Condensation · ‎Rain penetration · ‎Rising damp

https://en.wikipedia.org/wiki/rising damp_(structural)