Insulation FAQ

General and Attic insulation


Q. Why should I insulate?

A. The main benefits of insulating your home are reducing heat loss and saving money on your heating bills. Insulation will also provide a more comfortable climate for your home, by acting as a buffer between the cold damp weather on the exterior and the warm dry environment inside your home.

Q. What are the current requirements for Attic Insulation?

A. Building Regulations require a U-Value of 16 in the attic. This is achieved installing 270 millimeters of RockWool.

Q. I have about 4 inches of fibreglass already in the attic. Can this be topped up?

A. Yes. The mineral wool can be blown in on top of the existing insulation to an overall depth of 300 millimeters or more.

Q. How long does the process take?

A. The average attic can be completed in less than 2 hours.

Q. Is there any mess?

A. No. Your house will be left exactly as we find it except warmer.


Bead Insulation FAQ


Q. Why should I buy wall insulation?

A. According to independent government figures and Which? magazine your heating bills can reduce by as much as 25%, (up to 33% in detached houses and bungalows).

Q. In addition to a warmer home and lower fuel bills are there other benefits?

A. Yes. Many householders suffer from black mould growth on bedroom walls, (this tends to occur mostly in bungalows). The mould occurs due to the coldness of the wall, but after insulation it will no longer appear.

Q. Is Supernova Silver environmentally safe?

A. Yes. The men installing beads do not need protective masks and as you will be aware, polystyrene is used throughout the food and catering industry.

Q. How am I to know if not enough bead is blown into the wall and I am getting a complete job carried out?

A. Beads cannot be compressed into small bales to take up less space or ‘fluffed up’ to take up more space. If you lift a bean bag off the floor all the beads rest on the bottom portion of the bag (without gaps) and the top of the bag will be completely empty. Exactly the same occurs in a cavity. If not enough material is injected into the wall the top of the cavity will be completely devoid of bead.

Q. Because you are not compressing the material within the cavity, do you need to drill as many holes as other systems where a given density must be achieved in situ?

A. No. Much fewer holes are required. We drill mainly at the top of the area we wish to fill plus under windows. In a typical gable wall, only about half the number of holes are required to blow bonded bead as with other systems.

Q. What does a U value measure?

A. The rate of heat flow through a building element.

Q. How do you improve the u value of a wall/roof/floor?

A. By using better grade (lower conductivity) material and greater thickness of material (150mm as opposed 100mm filled cavity)

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