Insulation

Proper insulation is a priority!

Where To Insulate House ?

Here's where the heat typically escapes from a poorly insulated house:

30% through ceiling/attic and roof (this should be the priority in terms of insulation)
25% through walls
10-15% through windows and doors
7-10% through floor

Before making any changes to improve your heating system or replace it, make sure your home is well insulated!

Where to Insulate. Adding insulation in the areas shown here may be the best way to improve your home's energy efficiency. Insulate either the attic floor or under the roof. Check with a contractor about crawl space or basement insulation.

What Type of Insulation ?

The main types of insulation are:

Mineral wool, glass wool, rock wool
synthetic insulation: polyurethane and polystyrene
Natural wool: hemp, flax
cork
wood fiber
perlite

Comparison of Insulation Types

	Insulation	Soundproof.	Advantages	Disadvantages	where ?
Mineral wool (glass wool, rock wool)	Very good	Very good	Best quality / price ratio	Handling unpleasant Not recommended in a wet location	Everywhere: roof, attic, floors, floating slab, walls
Synthetic (1)	Very good	OK for polystyrene	Thin	Less durable	Floors, walls, attic space, roof terrace
natural insulation (natural wool, HEMP, flax)	Very good	Low	Durability	Ecological price?	Walls, roofs, roofing
Cork	Very good	Medium, Low	Excellent durability Light Eco friendly Not deformed	Expensive	Everywhere! To be used in addition to other insulating
Wood fiber	Good	-	Excellent durability, ecological	Expensive	Everywhere! To be used in addition to other insulation
Perlite	Good	-	Unlimited durability	Heavy, expensive	Ideal for attic

(1)>Expanded polystyrene, extruded polystyrene, polyurethane

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