There are a few different types of roof insulation. The most common type is fiberglass insulation which is installed in between the rafters of the roof. This type of insulation is effective in preventing heat loss in the winter and heat gain in the summer.

Another type of insulation is spray foam insulation. This type of insulation is sprayed onto the roof deck and forms a seal that prevents air infiltration. It is also effective in preventing heat loss in the winter and heat gain in the summer.

A third type of insulation is radiant barrier insulation. This type of insulation is installed on the underside of the roof deck and reflects heat away from the roof. It is effective in preventing heat loss in the winter and heat gain in the summer.

 

Roof insulations

We offer a Loft insulation service to assist you in making cost effective energy saving measures you can save as much as 20% of your energy bill by installing loft insulation. We find that most clients who do not have loft insulation will recover the costs of installation in energy savings within 3 years (average)..

we are on the premises we offer to check the insulation for free, we do this because we have witnessed over the years that the thickness of the insulation differs greatly dependent on when it was installed. The ideal thickness for loft insulation is 200mm (8″), so if yours is 100mm (4″) or less it could do with a top-up and it will save you more on your energy costs.

The product itself Loft insulation normally comes in three types – blown material (mineral wool or cellulose fibre), mineral wool quilt, and loose fill.

Do you have a flat or pitched roof?

The type of insulation you should choose will depend on the type of roof you have:

Pitched roof – there are two options: warm or cold loft insulation

Flat roof – there are three options available: warm deck, cold deck or inverted roof

Cold loft insulation for pitched roofs

The simplest and cheapest roof insulation is the classic cold loft option. Insulation is placed over and between the wooden joists, above the ceiling of your home's top floor. This is often just called loft insulation.

Warm loft insulation for pitched roofs

If you can't install cold loft insulation because, for example, you're using your loft as a living space, you will need to consider warm loft insulation. For a warm loft, you install insulation directly under the roof in the plane of the roof's pitch (slope). Insulation will reduce heat loss and your loft space won't become excessively hot in summer or cold in winter.

Flat roof insulation

There are three types of insulation for flat roofs and a professional should help you to decide which one is best for you:

- Warm deck or warm roof has insulation above the roof deck (the panel underneath the roofing material that's usually made of wood). It's recommended in damp and cold areas, such as Ireland.

- Cold deck or cold roof has insulation below the roof deck and the associated joists. Typically, you leave a gap for ventilation, as condensation may form that can lead to rot. In both warm deck and cold deck options, the weather membrane (typically formed of roofing felt and bitumen) will be the topmost layer, protecting against rain.

- Inverted roof has insulation that goes above the weather membrane, effectively protecting it from heat and cold that can shorten its life and that of the roof deck. It can even protect against wear and tear if there is access to the roof. With an inverted roof, the top-most layer is generally gravel or a similar material.

The costs for insulating a loft vary depending on the amount of insulation already installed, and the size of your home. We offer a very competitive price on all Loft Insulation job so call now for a Free No Obligation Quote.