What type of roof insulation is best?
What type of roof insulation is best?
One of the most common and effective ways to insulate your roof is with polyurethane spray foam. This spray-applied plastic is known to be highly effective for sealing any cracks as well as resisting wind and heat. The foam is applied to the underside of your roof deck and directly onto the slates and tiles.
What is the longest lasting insulation?
The International Association of Certified Home Inspectors states that spray foam insulation, wrap tape and housewrap insulation can last for more than 80 years. At the same time, cellulose, loose-fill, foamboard, loose fill and rock wool insulation can last up to 100 years.
What is the best insulation for flat roof?
Flat roof insulation is used to enable a room to feel warmer in the winter and cooler in the summer months. Wood fibre, cellular glass and polystyrene (EPS or XPS) all have good insulation properties, but foam works particularly well and is often found in modern constructions.
What thickness should roof insulation be?
An uninsulated flat roof has a U-Value of around 1.5 W/m2K. When insulating one, you’re aiming for a value of 0.25 W/m2K or less. To achieve this, you should insulate your flat roof with insulation boards totalling around 150mm thickness.
How do I stop condensation on my flat roof?
There are two forms of flat roof construction which can reduce the risk of condensation forming. Essentially, thermal insulation can either be placed above or below the structural roof deck or waterproofing layer.
How many layers should a flat roof have?
Most flat roofs have two to four layers excluding a reflective coating.
Does sheep wool insulation mold?
Sheep’s wool insulation resists fire and mold. The moisture content in each fiber of sheep’s wool make it naturally fire resistant. Finally, because wool is a keratin, it also naturally resists mold growth.
