Preventing Damp in Your Home — A Guide for People with Aspergillosis

If you live with aspergillosis — whether allergic, chronic or invasive — your home’s indoor environment becomes especially important. Damp, condensation, and poor ventilation can increase exposure to fungal spores (including Aspergillus) and exacerbate lung symptoms.

This updated guide explains what damp is, why it matters for you, how to prevent it, your rights and responsibilities, and what to ask your healthcare and housing teams.

What is damp, and why does it matter?

Types of damp

  • Condensation: When warm, moist air hits colder surfaces (windows, external walls) and water droplets form. This is the most common cause of visible mould. National Energy Action (NEA)

  • Rising damp: Moisture from the ground moving up through the walls (less common, but serious). HomeOwners Alliance

  • Penetrating damp: Water entering from outside through leaks, broken guttering, damaged roofs/walls. National Energy Action (NEA)

Why this matters if you have aspergillosis

  • Damp and mould release spores, allergens and irritants that affect lungs and airways. GOV.UK

  • Homes with damp or mould have been linked to worsened respiratory outcomes, including risk of aspergillosis. GOV.UK

  • Controlling damp is part of protecting your lung health — it’s not just about comfort.

How to prevent damp in your home

Here are practical steps that help minimise damp, condensation and mould — especially useful for those with sensitive lungs.

1. Ventilate well

  • Use kitchen and bathroom extractor fans whenever cooking, bathing or showering.

  • If you have windows with trickle vents, keep them open (even a small gap helps).

  • Open windows briefly each day if safe — even 5–10 minutes helps remove moist air. Centre for Sustainable Energy

  • Make sure furniture isn’t placed so tightly against external walls; allow airflow behind wardrobes/cupboards. Centre for Sustainable Energy

2. Control moisture production

  • Avoid or minimise indoor clothes-drying unless you have good ventilation or a vented tumble dryer. Great Places

  • Cover pans when cooking; use lids to reduce steam. Centre for Sustainable Energy

  • After showers/baths, open window or use fan until the room is dry and wipe down surfaces.

  • Wipe away condensation from windowsills and frames each morning — this prevents mould-forming spots. National Energy Action (NEA)

3. Keep your home warm and insulated

  • Cold surfaces (walls, windows) promote condensation. Insulation and maintaining a reasonable background temperature reduce the risk. Energy Saving Trust

  • Even a low level of heating is better than letting rooms go cold and damp.

  • Ensure external walls, guttering, drains are in good condition — water should not be pooling near building fabric. HomeOwners Alliance

4. Address structural issues promptly

  • Leaks from roofs, windows, gutters or external walls can lead to penetrating damp. These often require professional repair. Citizens Advice

  • If you repeatedly see mould in the same place even after cleaning — it likely means the root cause (moisture/ventilation/structural issue) is still present.

  • Use fungicidal washes for small mould patches if you’re healthy enough to clean safely. Always wear a mask (e.g., FFP2) and gloves if you have lung disease.

5. Set up good habits

  • After cooking or showering: close the door, open a window or run the extractor fan.

  • Don’t dry wet laundry in bedrooms or closed rooms unless ventilation is adequate.

  • Move air-flow-blocking furniture away from external walls.

  • Use a hygrometer (humidity meter) if you can — aim for indoor relative humidity of ~ 40-60% (lower is better for respiratory health).

Housing rights and responsibilities

For tenants

  • If you rent, report any damp/mould in writing to your landlord or housing provider as soon as you notice it. Describe the location, frequency and any health effects.

  • Keep photos, notes of communication and copies of any inspections.

Who is responsible?

  • If the cause is structural (e.g., leaking roof, defective damp-proof course) the landlord is usually responsible. Citizens Advice

  • If the home lacks adequate ventilation/heating or multiple loads of moisture build-up occur, the landlord may also be responsible.

  • As a tenant, you can help by ventilating, wiping away condensation and reporting problems.

For people in social housing in England

  • Under new rules (following the law known informally as Awaab’s Law), social landlords must act quickly when damp/mould is reported (investigate, summarise, repair) — this places a stronger obligation on housing providers.

For owners/occupiers

  • If you own your home, you still benefit from these prevention steps. You may need to pay for repairs yourself or via your insurance, but the health benefits are clear.

Where to go for help

When to speak with your healthcare team

If you have aspergillosis and you live in a home where the conditions above apply:

  • Inform your specialist or respiratory nurse about your housing and ventilation.

  • Ask them to record your housing conditions in your health record and provide a letter if needed to your landlord/housing provider.

  • If you notice increased cough, breathlessness, or more frequent exacerbations and suspect your home environment may be playing a part — mention this to your healthcare provider.

  • Consider discussing with them whether a housing/ventilation assessment referral is appropriate.

Final thoughts

Preventing damp is not just about making your home look better — for people with lung conditions like aspergillosis it is a key part of protecting your lungs and health.
By improving ventilation, controlling moisture, maintaining warmth and taking prompt action on structural issues, you reduce avoidable risk and support better respiratory outcomes.
If you notice persistent damp or mould, report it and follow up. Your home can be part of your health programme.

** Last Reviewed Oct 2025