Physical damage to insulation is straightforward: it gets replaced. Contamination is the part people handle badly, and it is the part where getting it wrong affects the household rather than the building.
What contaminated means
Insulation that has been used as a nest, or that sits below and around a resting place, will have taken urine and droppings into the fibres. Unlike a hard surface, mineral wool absorbs and holds it. That is why soiled material is replaced rather than cleaned — there is no cleaning it.
Why dust is the issue
The risk in this job is not touching the material. It is disturbing dried material in an enclosed space and breathing what goes into the air. Sweeping and dry vacuuming are the two things that do that most effectively, which is why both are the wrong approach.
How to do it
- Ventilate first. Open the hatch and any roof vents and give it a while before starting
- Wear the equipment. Disposable gloves, a properly fitting mask, goggles, long sleeves, and clothes you can change out of
- Mist, do not soak. A light spray of water damps the dust without turning the material into something heavy and dripping
- Lift and bag, do not sweep. Roll or fold material into heavy-duty bags where it lies
- Double-bag and seal before bringing it down through the house
- Wipe hard surfaces afterwards — joists, boarding, tank lids — with a household disinfectant, wet rather than dry
- Wash afterwards. Hands, forearms, face, and the clothes separately
Do not use a domestic vacuum cleaner. An ordinary household machine passes fine dust straight through and distributes it, which is worse than leaving the material alone.
Getting rid of it
Bagged insulation is generally not accepted in household recycling and there can be limits on quantity at a household waste site, so it is worth checking with the local authority before loading a car with twenty bags. For a large clearance, a licensed waste carrier or a skip is usually the practical answer.
Who should not do this
Anyone who is not comfortable working in a roof space, and anyone for whom dust and respiratory irritation is a concern, is better off having it done. It is not a job worth pushing through on principle — the material is an irritant before anything has been living in it.
And the reason it is worth doing at all
Beyond hygiene: nesting material holds scent, and scent advertises the site to the next animal along. Clearing it is part of taking the property off the list rather than merely tidying up after the last occupant.
Questions
Is a dust mask enough?
A properly fitting mask rather than a loose paper one, together with ventilation and damping down. Fit matters more than rating on its own.
Can I put it in the wheelie bin?
Usually not, and quantities at a household waste site can be limited. Check with the council before loading the car.
Do I need the loft professionally cleaned?
For a straightforward loft and a modest area, a careful household can do it. Large or heavily contaminated spaces are better handed over.
Squirrel Control Diss
Squirrel control in Diss is £280 fixed cost. Proofing work, where it is needed afterwards, is £180. Call 01502 630 122 and tell us what you have heard or seen.
For squirrel control in Diss, call 01502 630 122, or read the Diss squirrel control page.