Beth Bradshaw

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

by Beth Bradshaw

Toxic Mould & Mycotoxins: What People With Aspergillosis Need to Know

For people living with aspergillosis (whether allergic, chronic, or invasive), the quality of your home environment is especially important. Dampness, mould growth and poor indoor air quality can contribute to higher exposure to fungal spores — including Aspergillus — and may worsen symptoms or risk of infection. Understanding how moulds grow, what mycotoxins are, and how housing conditions and laws impact your health can help you take informed action.

What are moulds and mycotoxins?

  • Moulds (fungi) grow in moist, poorly ventilated places: for example, damp walls, ceilings, window frames, or poorly maintained air-conditioning systems.
  • Some moulds (including strains of Aspergillus) produce chemicals called mycotoxins — toxic substances which have been studied mainly in agricultural contexts (e.g., contaminated food and animal feed).
  • Research on inhaling mycotoxins from indoor mould-growth is limited, especially in humans. What we do know:
    • Mycotoxins can be airborne in some damp buildings.
    • The dose of mycotoxin inhaled in most homes appears far lower than doses known to cause acute poisoning via ingestion.
    • Repeated low-level exposure over time is less well understood.
    • Other co-factors in damp homes (allergen exposure, dust mites, bacterial growth, structural damp) also play important roles.

Why this matters for people with aspergillosis

  • If you live with a lung condition like aspergillosis, your respiratory system is already vulnerable. Exposure to mould spores, damp-air allergens or possible mycotoxins may make symptoms worse: increased cough, wheeze or breathlessness.
  • Damp and mould also tend to co-exist with poor ventilation, excess humidity, condensation and structural issues — all of which can amplify respiratory risk.
  • While we can’t definitively say inhaled mycotoxins cause aspergillosis flare-ups, what we do know is that damp housing is clearly associated with worse respiratory health outcomes.
  • For clinicians, housing conditions are therefore part of the picture: it is reasonable to ask about damp, mould and ventilation when a patient with aspergillosis reports worsening symptoms or infection.

What you can do at home

Here are practical steps to reduce damp, mould growth and improve indoor air quality — especially relevant if you have aspergillosis:

1. Ventilate well

  • Use extractor fans in bathrooms and kitchens when showering, bathing or cooking.
  • If your windows have trickle vents, keep them open (even a small amount helps).
  • When safe, open a window briefly each day to let fresh air in.

2. Control indoor moisture

  • Avoid drying lots of clothes indoors unless you have good ventilation or a vented dryer.
  • Wipe away condensation from windowsills and frames each morning.
  • When cooking or showering, reduce steam (e.g., lids on pans, fans running).
  • Check for leaks (plumbing, roof, guttering) and ask for prompt repair.

3. Maintain a warm and dry home

  • A background level of heating helps — cool rooms more easily develop condensation and mould.
  • Don’t rely solely on closing doors or de-humidifiers — structural/ventilation issues often need addressing.

4. Clean mould safely

  • For small areas of visible mould: wear gloves and a suitable respiratory mask (e.g., FFP2 or better) if you have lung disease.
  • Do not dry-brush or vacuum mould-spots — this can release fungal spores or fragments.
  • Avoid using bleach in enclosed rooms — it can irritate lungs and may not kill all mould types.
  • If mould recurs after cleaning, it means the underlying moisture/ventilation problem remains — prompt housing action is needed.

Housing & Legal Rights – An Important Context

Guideline for professionals and patients

The National Institute for Health and Care Excellence (NICE) Guideline NG149 – Indoor Air Quality at Home applies not only to patients, but also to health professionals, housing officers, social care workers and landlords. It emphasises that:

  • Damp, mould and poor ventilation affect health.
  • Professionals should ask about housing conditions, especially for people with chronic respiratory illnesses.
  • Housing providers and landlords have a role in ensuring safe indoor air environments.
    📘 Read more: NICE NG149

New legal protections – Awaab’s Law (England)

For social housing tenants, as of October 2025, this law gives strict time limits on how quickly damp and mould must be investigated and repaired:

  • Investigation of reported damp/mould: within 10 working days.
  • Written summary of findings: within 3 working days post investigation.
  • Repairs or making the home safe: within 5 working days of confirming a hazard.
  • Emergency health risks: within 24 hours.
    Landlords must provide safe temporary accommodation if repairs take longer.
    📘 Learn more: GOV.UK – Awaab’s Law

For private rented homes, the Homes (Fitness for Human Habitation) Act 2018 still applies — landlords must keep properties free from damp and mould.

What we don’t yet know (and why caution matters)

  • There is insufficient direct evidence that inhaling indoor mycotoxins at the low levels typically found in UK homes causes specific diseases in humans.
  • Mould- and damp-related symptoms often overlap with allergy, asthma, anxiety and other conditions — making diagnosis complex.
  • If you have aspergillosis and new or worsening symptoms, it may be difficult to attribute them solely to mycotoxins or damp — your healthcare team may need to rule out multiple causes.
  • Because of these uncertainties, it is safer to treat damp and mould as preventable risks rather than waiting for definitive proof of harm.

When to speak to your healthcare team

  • If your symptoms are getting worse and you live in a damp or mould-affected home, tell your respiratory specialist or nurse.
  • Ask for a letter or report for your landlord/housing association explaining how your lung condition can be affected by mould/damp.
  • If you or your family members are experiencing symptoms like increased cough, wheeze, shortness of breath, fatigue, or sinus problems — mention housing conditions.
  • Discuss with your healthcare provider whether any assessment of indoor air quality or housing referral is needed.

Final Thoughts

For people living with aspergillosis, a dry, well-ventilated and well-maintained home is far more than comfort — it is a part of maintaining your respiratory health.
While the role of indoor mycotoxins remains under investigation, what we do know is that damp housing and mould growth are clearly associated with poorer respiratory outcomes.
By improving ventilation, controlling moisture and using your housing rights, you reduce avoidable risk and support your health. Don’t wait until symptoms intensify — act early, seek help, and prioritize improving your home environment.

Useful Resources

by Beth Bradshaw

Why are damp homes bad for our health?

Damp conditions in homes are a significant health concern, particularly for individuals with respiratory conditions, the elderly, and young children. Exposure to dampness can lead to various health issues, including:

  • Respiratory problems: Increased risk of asthma, chronic obstructive pulmonary disease (COPD), and respiratory infections.
  • Allergic reactions: Symptoms such as sneezing, runny nose, red eyes, and skin rashes.
  • Worsening of existing conditions: Particularly in individuals with asthma or weakened immune systems.

The World Health Organization has highlighted that exposure to dampness and mould elevates the risk of respiratory infections and allergies by up to 50%.

🧫 What Is Mould?

Mould is a type of fungus that thrives in damp environments. It produces spores that can be inhaled, leading to health issues. Common types include:

  • Aspergillus: Particularly concerning for individuals with chronic pulmonary aspergillosis (CPA) or allergic bronchopulmonary aspergillosis (ABPA).
  • Penicillium: Often found in water-damaged buildings.
  • Cladosporium: Common in both indoor and outdoor environments.

These moulds can produce allergens, irritants, and mycotoxins, which may contribute to health problems (nhsinform.scot).

🌍 Causes of Dampness

Dampness in homes can arise from various sources:

  • External factors:
    • Leaking roofs or walls.
    • Broken guttering.
    • Flooding.
  • Internal activities:
    • Cooking and showering.
    • Drying clothes indoors.
    • Breathing and sweating by occupants.
    • Unvented tumble dryers.

These activities can introduce significant moisture into the air, contributing to damp conditions .

⚠️ Who Is Most at Risk?

Certain groups are more susceptible to the health effects of damp and mould:

  • Children and babies
  • Older adults
  • Individuals with existing respiratory conditions (e.g., asthma, COPD)
  • People with weakened immune systems
  • Individuals with skin conditions (e.g., atopic eczema)

These individuals should avoid exposure to damp and mould as much as possible (nhsinform.scot).

🛠️ Prevention and Management

To mitigate the risks associated with damp and mould:

  • Maintain indoor humidity levels: Use dehumidifiers and ensure proper ventilation.
  • Control indoor temperature: Maintain a consistent indoor temperature between 18-21°C to prevent mould growth (thesun.co.uk).
  • Address leaks promptly: Repair any leaks in roofing, plumbing, or walls.
  • Use mould-resistant products: Consider mould-resistant paints and materials.
  • Seek professional help: In cases of severe mould infestation, consult professionals for remediation.

For tenants in rented accommodations, it's important to report damp and mould issues to landlords or housing associations promptly. In the UK, landlords are legally obligated to maintain properties in a habitable condition, and tenants may be entitled to compensation if health issues arise due to dampness (england.shelter.org.uk).

🧠 Mental Health Considerations

Living in damp and mouldy conditions can also impact mental health, leading to stress, anxiety, and depression. Addressing these environmental factors can contribute to overall well-being.

📞 Seeking Assistance

If you or someone you know is affected by damp and mould:

  • Consult healthcare professionals: Discuss any health concerns with a GP or specialist.
  • Contact local authorities: Reach out to local councils or environmental health departments for support.
  • Legal advice: Consider seeking legal advice if living conditions are not addressed by landlords.

For more detailed information and resources, visit the Aspergillosis Patients & Carers Support website.

 

**Last Reviewed Oct 2025

by Beth Bradshaw

Health Hazards from Damp – What People with Aspergillosis Should Know

Updated 2025

Living with an aspergillosis condition (such as allergic or chronic pulmonary aspergillosis) means your lungs are more vulnerable to environmental conditions — including what’s going on in your home. One of the most important hazards is damp (and associated mould and poor ventilation). This article explains why damp matters, what the health risks are, what you can do, and how your housing and health care teams should respond.

Why damp is a hazard

Damp in homes typically arises from three main causes: condensation, penetrating damp (water entry from outside), and rising damp (ground moisture moving up through walls). Whatever the cause, excess moisture provides the conditions for mould growth, dust-mite proliferation, bacteria and fungal spores — all of which can affect indoor air quality and thus your lungs.

Homes affected by damp and mould are recognised in guidance from National Institute for Health and Care Excellence (NICE) as being associated with poorer health outcomes. nice.org.uk The World Health Organization and other reviews also highlight that occupants of damp or mouldy buildings may have up to a 75 % higher risk of respiratory symptoms. World Health Organization exposure to spores (including Aspergillus) and irritants triggers symptoms or worsens infection risk.

What are the health risks?

Respiratory & lung risks

  • Damp and mould are strongly associated with increased incidences of coughing, wheezing, breathlessness, and respiratory infections. iaqscience.lbl.gov

  • They are linked with the development or worsening of asthma, allergic rhinitis, and other inflammatory lung conditions. GOV.UK

  • For people living with aspergillosis, damp homes can mean higher fungal spore loads, greater irritation, and possibly increased risk of complications or flare-ups.

Other physical health impacts

  • Eye irritation, itchy skin, nasal and throat discomfort may occur in some people exposed to damp/mould‐dominated environments. GOV.UK

  • For people with weakened immune systems, there is evidence (though less strong) that some fungal infections may be more likely in damp or mouldy homes. NCBI

Mental health & wellbeing

  • Living in a damp or mould-affected home can lead to anxiety, stress and feelings of loss of control — especially if repairs are slow or you feel blamed for the conditions. GOV.UK

  • The combination of physical symptoms + poor housing environment + financial/housing stress can impact overall quality of life.

Who is more at risk?

People with the following are at increased risk from damp/mould:

  • Existing respiratory illnesses (such as aspergillosis, asthma, COPD)

  • Immune compromise

  • Young children, pregnant women, older people — all more vulnerable to poor indoor air quality. nice.org.uk

  • People on low income, in poorly insulated homes, or renting socially — these homes are more likely to have damp/mould. GOV.UK

What you (or your clinician) should do

For you (the patient)

  • Monitor your home environment: Look for repeated condensation, musty smells, damp patches, and black mould growth.

  • Tell your healthcare team: If you notice worsening respiratory symptoms (cough, wheeze, shortness of breath) alongside signs of damp/mould, inform your specialist nurse or physician. Based on NICE guidance, you should:

    “Ask about their housing conditions. If housing factors are a health concern … help them request a housing assessment.” nice.org.uk

  • Document the issues: Take photos, notes of communication with landlord/housing provider (if applicable).

  • Take protective steps at home: Ensure good ventilation, control moisture, keep heating consistent (see the separate “Damp Prevention” article on the website for detailed steps).

  • If living with aspergillosis, in consultation with your specialist, consider whether a housing referral or indoor air assessment is appropriate.

For your healthcare/support team

  • Recognise that housing conditions are part of the care package for people with lung disease.

  • Ask routinely about the housing environment in history-taking for patients with recurrent respiratory symptoms.

  • Make referrals (housing assessment, environmental health) when conditions suggest damp/mould may be contributing to health problems. nice.org.uk

  • Work across sectors: link with housing providers, social care, and environmental health to ensure a coordinated response.

For housing providers/landlords (context)

  • Damp and mould must not be seen as “cosmetic” issues—they are health hazards. Guidance emphasises that simply removing visible mould without fixing the underlying issue is inadequate. GOV.UK

  • Landlords and housing providers should have policies to inspect, document and address damp/mould, especially where tenants have known health vulnerabilities. GOV.UK

Key message

If you live with aspergillosis, living in a dry, well-ventilated, well-maintained home is not optional — it’s essential. Damp and mould are proven risk factors for respiratory illness and can undermine your management of aspergillosis.

Combined with what you can do at home (ventilate, control moisture, maintain warmth) and initiating action via your healthcare and housing teams, you can reduce the preventable risks related to your home environment.

Useful Links & Further Reading

by Beth Bradshaw

ELF holds their first Breathe Clean Air patient conference

Last week the European Lung Foundation held their first Air Pollution and Climate Change patient conference, where people came together to share personal experiences and hear about the latest research. All recordings are available to watch on demand via their YouTube channel, including moving personal stories from Tessa Jelen (Breathe Easy Westminster) and Rosamund Adoo-Kissi-Debrah (mother of Ella Roberta)

This will hopefully be the first in a series, so keep watching their website for dates of future meetings (it’s free and online). ELF organise many patient advocacy activities and also hold patient conferences for topics such as bronchiectasis, pulmonary fibrosis and asthma.

How can we improve indoor air quality at home?

Many aspergillosis patients find their symptoms are aggravated by poor air quality within the home, especially if they have related conditions such as asthma or COPD. Cigarette smoke and damp/mould are obvious sources, but problems can also be caused by the products we use to keep our homes smelling nice.

Triggers vary greatly from person to person and the scientific data on this subject is currently quite incomplete, so people are often not believed. Family, friends and even shops can be very reluctant to believe that their air fresheners and scented candles could be harmful. If you have problems with family and friends doubting, try sharing this infographic

  •  Damp and mould are hazardous to health and should be minimised for everyone, particularly children and those with lung conditions. NICE (NHS) issued guidelines for professionals in 2021 that give specific recommendations for doctors, construction and local authorities. Shelter provide a guide for people living in damp rentals or council housing.
  •  Gas cookers release particulates that should be removed by using an extraction fan (remember to change the filter regularly!) and opening a window for 10 minutes after cooking. If you are replacing your cooker, consider switching to electric/induction hob
  •  Scented candles and incense produce large amounts of particulates and should not be used regularly, especially in small, poorly-ventilated rooms like bathrooms
  •  Volatile organic compounds (VOCs) can be found in cleaning products and deodorant sprays

How can we improve outdoor air quality for everyone?

Unfortunately many aspects of air pollution are beyond our individual control, so it is also important for lung patients to come together and advocate for better laws and protections.

by Beth Bradshaw