6. Retrofit Contract information Flashcards
1 A thermal bypass is where more conductive materials exist within an insulation layer. True or false?
False
2 Where moist (humid) air meets a cool surface, the first reaction is:
Mould growth
Fungal attack
Condensation
Rising damp
Condensation
3 Which of the following is positioned on the inner side of the insulation, to reduce vapour transfer through a building element?
Vapour permeable construction
Vapour control layer
Vapour control layer
4 Ventilation from ‘wet’ rooms (i.e., kitchens and bathrooms), which may be intermittent or continuous is known as
Whole building
Purge
Extract
Natural
Extract
5 Which of the following organisations is a not-for-profit training company, specifically dedicated to improving the capabilities of the UK retrofit sector?
TRA
UKCMB
LABC
BAFE
UKCMB
The person responsible for meeting with the property owners in the first instance and discussing options for improving their home’s energy performance is the retrofit:
Coordinator
Advisor
Designer
Evaluator
Advisor
PAS 2030‑2019, is intended specifically for the retrofit:
Installer
Designer
Advisor
Evaluator
Installer
A piece of equipment used for looking inside an existing cavity is known as a:
Hydroscope
Camscope
Borescope
Miniscope
Borescope
The most likely defect caused by the problem in the image below is:
Rising damp
wet rot
dry rot
Penetrating damp
Penetrating damp
Moisture in the air that forms on the colder part of the building fabric is best known as
Rising damp
Efflorescence
Condensation
Ammonia salt
Condensation
When a DPC fails in a cavity wall at ground-floor level, the most likely outcome is condensation, true or false?
False - the most likely outcome is rising damp
Fungus that is recognised by a flat, mushroom shape and attacks wet underfloor timbers (20 to 30% moisture content), is a sign of:
Dry Rot
Wet Rot
Woodworm
Mould Growth
Dry rot
Materials delivered to site should be checked for accuracy against:
A purchase order
A delivery note
An invoice
A remittance advise
A purchase order
According to PAS 2035; ‘whatever the scale of the retrofit project, a technically sound and usually cost-effective approach’ is the one known as fabric:
intelligence
First
Friendly
Smart
First
When repointing defective brickwork, how deep should the joint be to receive the new mortar?
5mm
10mm
15mm
20mm
10mm
The best option for insulating hard-to-reach areas of the loft is:
Blown insulation
Rolls of mineral wool
Rigid boards
Semi rigid batts
Blown insulation
In a flat roof construction, when the insulation is placed above the roof deck it is referred to as a cold roof, true or false?
False - a cold roof or cold deck is where the insulation is within or below the roof structure
Typical materials used for blown cavity wall fill is polystyrene beads and:
PIR
PUR
Aerogel
Glass mineral wood
Glass mineral wood
One of the main issues when EWI is selected, is the major disruption to the occupants caused by the work, true or false?
False - this is more likely with IWI
When custom built systems for insulating external solid walls, the two materials most likely to be used are mineral wool and:
Aerogel
Spayed cellulose
XPS - Extruded Polystyrene Insulation
Polystrene beads
XPS - Extruded Polystyrene Insulation
When installing sold internal wall insulation on a framing system, what are the two main materials used
XPS, ESP, MINERAL WOOD
BATTERNS, XPS AND AREOGEL
TREATED TMBER BATTENS, METAL LINING CHANNELS OR STUDS.
TREATED TMBER BATTENS, METAL LINING CHANNELS OR STUDS.
One of the main reasons for poor ventilation under a suspended floor is:
Not enough insulation
Too much insulation
Fungal attack
Blocked or missing airbricks
Blocked or missing airbricks
Laying insulation boards and a floor covering over the existing floor to improve its insulation is called an ‘elevated floor’, true or false?
False - its called a floating floor
Compared to high-performance walls, at what rate do windows with a U-value of 0.8 W/m²K lose heat at?
Twice
Three times
Five times
10 times
Three times
LEDs have a longer life than CFLs, as well as better performance in terms of lumens per watt, true or false?
True
The image shows solar
thermal flat plate
Thermal evacuated tubes
PV tiles
PV panels
Thermal evacuated tubes
New or replacement windows should always be fitted in place after EWI is installed, true or false?
False - they should always be fitted before the EWI
In terms of general fixing instructions, SuperQuilt must be installed with a 150mm overlap, with all joints taped with YBS 75mm foil tape, true or false?
False 50mm overlap
What is the combined U‑value of SuperQuilt and 90mm PIR (0.022 W/mk) when used for an over joist flat roof?
0.13W/m2K
0.15W/m2K
0.18 W/m2K
0.25 W/m2K
0.15W/m2K
On foil-taped joins SuperQuilt should be overlapped at each joint by approximately 50mm and stapled onto the battens; the joints should be sealed using:
25mm foil tape
50mm foil tape
75mm foil tape
100mm foil tape
75mm foil tape
