Insulation

Batt or blanket loft insulation

This insulation is available in rolls of foil-backed felt, rock, glass or mineral fibre and is probably the most common form of insulation.

Pros

• straightforward to self-installsome
• brands use recycled glass or sheep’s wool (which is non-irritant and non toxic)good for insulating
• accessible spaces such as exposed wall cavities and some attics.

Cons

• some materials can irritate the skin so make sure you wear proper protection from the fibressheep’s wool
• is a more expensive insulation option.

Sheet insulation

Sheet insulation is designed for insulating the sloping sides of the roof and is often made from polystyrene, polyurethane or polyisocyanurate boards.

Pros

• greener insulation options include cork, straw and wood board
• excellent for insulating loft conversions
• can be covered with plasterboard for an attractive finish
• high insulating value per unit thickness
• some boards come with their own system of attachment

Cons

• synthetic sheet insulation materials use large amounts of energy during production
• can be more expensive than other types

50mm crown dritherm wall cavity insulation 9.83m2

75mm crown dritherm wall cavity insulation 8.74m2

100mm crown dritherm wall cavity insulation 6.55m2

100mm crownwall (roll-13.89 m2)

150mm crownwall (roll-9.18 m2)

100mm isover space saver insulation (10.64 m2)

150mm isover space saver insulation (6.99 m2)

200mm isover space saver insulation (4.5 m2)

100mm rock wool insulation (5.76 m2)

150mm rock wool insulation (3.84 m2)

Insulation board 2440 x 1220 x 12mm

Polystyrene 2438 x 1219 x 75mm

Jablite Polystyrene 2400 x 1200 x 50mm

Jablite Polystyrene 2400 x 1200 x 25mm

Jablite 100mm Rockwool 2.4-m2

50mm Rockwool 4.8-m2

75mm Rockwool 3.6m