How to repair a damp internal wall and external walls

How to repair a damp internal wall and external walls

Introduction

Damp walls have to do with water that enters the wall underneath paintwork. The only way that this will happen is when the paint fails to protect the wall. Small cracks form on the paint surface when attacked by UV rays. Normally when painting that was not suited for UV attack is painted on an external wall or damp gets to the inside of a wall from the outside.

Description of the condition of the property

The property has a lot of paint flaking going on. this most properly because of the use of unfit paint or was left for too long before replacement.

Problem/situation

The sun’s UV rays caused the paint to perish. This is what happens when cheaper or unsalted paint is used. Cracks form on the surface and water seeps in.

Possible outcome

Not attending to the problem one finds that water will enter and damage the wall to the extent that plastering is compromised. Cracks let water in and the plaster will separate and mould will start growing. This has not only the effect that replacing the plaster is expensive but it also has health consequences.

Suggestion

All loose paint needs to be scraped from the wall. Sanding down the service or using a wire brush to smooth down the surface. Fill all cracks and sand it down again. Apply damp proofing and finish off with a decent coat of paint.

Decision with customer/owner

After a lengthy discussion with the owner, the green light was given. Work could commence.

Work done 

Because there is no damage to plastering we must scrape all paint from the wall. Sand it down or use a wire brush to speed up the process. A ruff surface is needed to apply damp proofing but before that, all cracks must be filled and sanded down. Now we apply damp proofing to protect the plasterwork. Finally, fresh high-quality UV paint is applied.

Damp-proofing on the exterior and interior walls.
Damp-proofing on the exterior and interior walls.

Damp-proofing of the exterior walls.
Damp-proofing of the exterior walls.

Damp-proofing and painting of the exterior walls.
Damp-proofing and painting of the exterior walls.

Result

The preparation of all surfaces went well. All cracks were filled, the walls damp proofed to prevent water damage and the application of a good coat of UV paint for protection. It was time for the owner to take possession. A Property to surely be proud of.

Outcome

The property that was fast deteriorating was saved. Occupants can feel safe living in this now well-maintained home.

Damp proofing, waterproofing and wall coating done by TREMCO
Visit site http://tremco.co.za OR Call 0732708270