Cavity wall insulation can last a lifetime if it is properly installed and maintained to a high level. Older materials may be less efficient than the newer materials. We can remove the old insulation from your cavity walls and install EPS Bonded beads. The old insulation will be removed and the cavity walls will then be conditioned to receive the latest insulation. You may also be eligible for cavity wall insulation removal grants.

1. What are the advantages of cavity wall removal
and clearing?

2. Before 1995, there was no regulation for cavity wall insulation. This led to the
possibility of cavity wall insulation being poorly installed. If the drilling pattern or
density are not correct, this could cause dampness and condensation issues.
Cavity wall insulation can last a lifetime if it is properly installed and maintained
to a high level. Older materials may be less efficient than the newer materials.
We can remove the old insulation from your cavity walls and install EPS
Bonded beads. The old insulation will be removed and the cavity walls will then
be conditioned to receive the latest insulation. You may also be eligible for
cavity wall insulation removal grants.

3. Over the years, it has been proven that extreme weather conditions are becoming
more severe each year. Older insulation techniques can cause problems in
buildings that aren't maintained. The insulation can become wet from water
penetration. This can cause insulation to become wet and also retain moisture.
Moisture contained in insulation can seep through walls and cause dampness.

4. There are many causes of it, including:
• Property in high-exposure or severe zones
• Badly installed insulation can cause voids, which can lead to cold spots that
lead to condensation and mold growth.
• Cavity that is not cleaned before installing insulation can cause capillary action
• Incorrect insulation density
• Too small a cavity to allow capillary action
• Porous mortar joints/mortar joints and/or poor render conditions permit
moisture ingress
• Flood, fire, subsidence and escape of water.
• Cavity Blockages

5. You can fill the cavity with debris, which falls into the airspace and allows
moisture to penetrate Wythe (vertical layers). This can lead to dampness, and
sometimes mold growth. Additionally, debris and obstructions can build up at the
Cavity’s bottom, allowing moisture to move upwards through them. This could
cause dampness or visible mold growth on the interior walls.
The cavity must be free from debris and rubble before cavity wall insulation can
be installed. Since the inception of cavity wall construction, properties have been
identified as having minor and sometimes major blockages/obstructions within
the airspace (cavity).

6. These obstructions can be caused by, but not limited to:
• The dwelling's cavity was not adequately cleared before it was constructed.
• Alterations to the dwelling (e.g. Extensions, wall removals and wall tie
replacements are all possible.
• Cavity exposure can be achieved by replacing windows or conservatory
structures.
• General improvements/repairs: Installation of balanced flue heating
systems/vents
• Replace wall ties that allow debris/rubble inwardly to move into the cavity

7. Cavity wall insulation can sometimes have the same effect of installing wall
ties. After drilling the outer wythe, mortar and brick parts can still get into
cavities. The debris and obstructions can get into cavities, causing moisture to
penetrate the outer layer (vertical). This can lead to dampness, and mold and
other fungi formation.
Debris and other obstructions can also build up in the cavity. This can make it
possible for moisture to rise through the obstructions. This can lead to
dampness, which can cause mold growth and fungi.

8. It doesn't really matter if insulation is installed on the cavity wall. Transmission
and bridging are possible. Cavity wall insulation is not sufficient to prevent this
from happening. CWI can be used to solve problems in cavities that have
potential obstructions. This will increase the likelihood of cold-bridging and
capillary action.
Below are images of rubble and debris in cavities walls made from masonry.
These properties can lead to cold bridging or capillary action (the transfer and
retention of moisture).

9. It doesn't matter whether the cavity wall is equipped with insulation,
transmission, or both, it can still cause problems. This problem can happen
regardless of how cavity wall insulation was installed.
• The value of your property will decrease
• Could lead to structural problems of great importance
• Reduce heat retention and increase fuel consumption
• Make sure you get your walls wet from within.
• You can have a negative impact on your health

10. • Name: Simple Green Energy
• Address: Blackthorn House Suite2A, St Paul's Square, Birmingham
• Contact: 0121 707 8369
• Website: https://www.simplegreenenergy.org/
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