9. Insulation v1.1

Report
Insulation
Wall insulation
Cavity wall insulation / Solid wall insulation
Roof insulation
Floor insulation
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Cavity wall insulation
• The insulation can either be
– Cavity fill (Retro-fitted)
– As built
• Retro fitted insulation means the insulation has been installed after initial
construction, this is more common in older properties, usually built before
1980, but can be found in more modern properties
• As built insulation means the insulation was installed when the property
was built, usually so the building complies with building regulations.
• As built insulation does not need to be specified in the software, stating
‘As Built’ will mean the software assumes there is insulation in line with
building regulations for the date of the building
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
“As Built” Cavity Insulation
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Cavity wall Insulation
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Retro-fit Cavity Insulation
• This insulation is pumped into the building through small holes drilled into the
brick work
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Look for Drill Fill Holes
• The drill holes leave a vital bit of evidence to show a wall is insulated
• The drill holes are in a regular pattern, usually 2 or 3 under each
window
• The drill holes are always in the mortar at a brick joint
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Drill Holes
• This is generally the pattern of drill holes you will see for
cavity fill
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
What about this?
Wall Tie
Replacement
• If you come across drill holes, the are not cavity drill holes.
• These are the marks where wall ties have been replaced
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
What are these holes for?
DPC Injection
• Damp proof course injected into 1 course of bricks at ground
level, usually on older properties which either had no damp
proof course of the DPC failed
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Solid wall – External Insulation
• To identify if a property has solid/external wall insulation have a look for an
extra face on the wall.
• Typically it will have a step at the bottom of the wall and the
bottom two rows of bricks will be visible.
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Solid wall – External Insulation
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Thickness of Internal/External Wall
Insulation
•
•
•
•
The thickness of internal or external wall insulation can be specified.
Options are: 50, 100, 150mm or Unknown
Selecting unknown will automatically default to 50mm
U-value can be entered if known and there is documentary
evidence
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Cavity Wall with Internal/External
Insulation
• RDSAP allows a cavity wall with a filled cavity to be entered with additional
internal or external insulation.
• The thickness of the internal or external insulation should be recorded where
possible
Convention 3.07:
‘If there is both internal and external wall insulation add the insulation
thicknesses together and enter as external’
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Loft Insulation- Joists
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Insulation Between Joists
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Important to Maintain Airflow in Loft
It is important to keep airflow in the loft, if there is damp in the
loft insulating it without keeping airflow will make this worse.
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Insulation at Rafters
• Where insulation is located at rafters you can specify
the thickness as 50, 100 or 150mm
• If there is insulation at joists and rafters then ignore
the rafter insulation thickness
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Floor Insulation
Floor insulation options
• As built – this indicates that the floor insulation remains as it was when
originally installed, and there is no evidence that insulation has been
fitted. This option assumes insulation levels based on the age band
selected for the property
• Retro-fitted – this option should only be selected if insulation is present
and can be confirmed by DEA observation or documentary evidence such
as a guarantee certificate
• Unknown – this option should only be selected if you are unsure about
the level of insulation. This option assumes insulation levels based on the
age band selected for the property and will remove any recommendation
for floor insulation.
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1
Any Questions?
Stroma – insulation
© Stroma Development Ltd 2013 | Version 1.1

similar documents