Insulation: types. 1. Loose fill 2. Matt and blankets 3. Rigid board 4. Injected. D. O Dowd

Transcription

1

2 Insulation: types 1. Loose fill 2. Matt and blankets 3. Rigid board 4. Injected 2

3 Loose fill insulation Loose fill insulation includes fibres or pellets that are blown into building cavity or attics using special equipment. It normally cost more than other types of insulation. Materials used: Cellulose fibre which is made from recycled paper.. Fibreglass and rock wool insulation, involve blowing insulation into timber-frame stud panels behind netting. 3

4 Loose fill Loose fill cellulose fibre between floor joists Collins DIY 4

5 Loose fill Collins DIY Loose fill cellulose fibre between floor joists 5

6 Matt and blankets (quilted insulation) Insulation made from mineral fibre fibreglass, rock wool, sheeps wool, hemp fibre or wood fibres Used to insulate below timber floors, above ceilings, and within stud walls. Attics are very common spaces for this type of insulation. Insulation generally comes in long rolls, or matts. 6

7 Quilted insulation Collins DIY 7

8 Soft (quilted) insulation applications Must not be compressed. Placed between timber joists/studs. attic floor timber ground floors upstairs floors sound insulation timber frame walls inner leaf insulated from inside 8

9 Sheep s wool insulation 9

10 Sheep s wool insulation Sheep Wool is the best performing and safest building insulation available. What s so good about sheep s wool? For many years, sheep have been able to adapt to their changing environments as their wool protects them through hot, cold, dry and wet seasons. Wool used as building insulation retains these properties to create a safe, healthy and environmentally friendly alternative. 10

11 Hemp insulation 11

12 Hemp insulation process Ecological building systems 12

13 Hemp insulation Extremely high thermal resistance. Hemp is made from the world's oldest cultivated plant. No chemical protection required during growth. It has an ability to absorb a release moisture without effecting thermal performance. Thermo-Hemp does not sag. It is not affected by mould growth or insect attack. It has high acoustic properties. It offers outstanding fire protection. 13

14 Hemp insulation Hemp roll Hemp matt Ecological building systems 14

15 Rigid insulation Rigid board insulation is commonly made from expanded polystyrene board (EPS). Polyurethane (UPC). Theses bards come in a variety of sicknesses and insulating values. Used in the cavities of concrete walls and in concrete floors. 15

16 Rigid insulation applications Can withstand compression used under concrete ground floors walls outer surface of inner leaf 60mm thick available in a variety of thicknesses 16

17 Installing Insulation

18 Injected insulation Injected or blown-in insulation was commonly only used to insulate old buildings, but no use to insulate new builds. Most commonly injected insulants used in Ireland are glass fibre, rock wool fibre and polystyrene bead. 18

19 Injected cavity insulation Drilling hole in outer leaf Collins DIY Filling cavity with insulation 19

20 Injected cavity insulation holes drilled in outer leaf polystyrene beads or foam insulation injected into cavity heat loss reduced by 2/3 should pay for itself in 5 years problem of moisture transfer 20

21 Injected cavity insulation Pressure Injecteion area Air pockets Eco bead Beads 21

22 Spray on insulation applications insulating old cavity walls used for awkward to reach places high ceilings in commercial buildings sticks to surface no supports needed durable no gaps efficient requires personal protective equipment 22

23 Improving insulation of old walls injecting cavity with insulation 23

24 Dry-lining covered with vapour barrier & plaster board aeroboard insulation placed between battens treated timber battens every 600mm 24

25 Dry-lining outer leaf cavity inner leaf insulation vapour barrier plasterbo ard timber battens fixed to wall insulation placed between battens vapour barrier across insulation plasterboard fixed to battens plaster applied 25

26 Dry-lining insulation Plasterboard fixed to insulation Bonding daps hold lining to wall 26

27 Improving insulation of old walls Dry lining fixing rigid insulation to the inside of the external walls Time consuming. No risk of moisture crossing cavity. Extensive repairs required. radiators & electrical outlets refitted redecoration Injecting insulation into the cavity pumping foam into the cavity Quicker & easier. Minimal repairs required. afterward. Minimal disturbance to home owner. Risk of moisture crossing cavity. 2 common methods dry lining fixing insulation to the inside of the wall 27