Common Air Tightness Issues in Buildings and How to Address Them

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Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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Achieving optimal air tightness in buildings is
crucial for energy efficiency, indoor air
quality, and overall comfort. However, many
buildings, both old and new, often suffer from
common air tightness issues that can undermine
these goals. Let us explore some of the most
common air tightness issues in buildings and the
practical solutions to address them. 1. Gaps
Around Windows and DoorsGaps and cracks around
windows and doors are common sources of air leaks
in buildings, compromising energy efficiency by
allowing conditioned air to escape and
unconditioned air to enter, leading to higher
energy bills and discomfort. To address these
issues, apply weatherstripping around doors and
windows to seal gaps and prevent air
infiltration. Use caulk to fill cracks around
window frames and door casings to block unwanted
air exchange. Install door sweeps at the bottom
of exterior doors to seal the gap between the
door and the threshold.
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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2. Poorly Sealed Attics and RoofsAttics and
roofs are common areas where air leaks occur due
to gaps around vents, chimneys, and other
penetrations. These leaks can lead to significant
energy losses and potential moisture problems,
compromising the efficiency and durability of a
building. As for its solution, ensure the attic
is properly insulated to prevent heat loss. Seal
gaps around vents, chimneys, and other
penetrations in the attic and roof with expanding
foam or caulk. Install weatherstripping around
attic hatches and ensure they close tightly to
prevent air leaks and enhance overall energy
efficiency. 3. Unsealed Electrical Outlets and
SwitchesElectrical outlets and switches on
exterior walls often contribute to air leaks if
not sealed properly, creating inefficiencies in
energy use and indoor comfort. To remedy this,
installing foam gasket covers behind the outlet
and switch plates can effectively reduce air
infiltration. Using caulk to seal any gaps around
the electrical boxes and the wall helps further
mitigate air leaks.
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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4. Cracks in the Building EnvelopeCracks and
gaps in the building envelope, like those in the
foundation, walls, or roof, contribute to
substantial air leakage issues. To tackle this,
conduct regular inspections of the building
envelope to identify cracks and gaps. Use
materials like caulk, foam, or concrete patches
to seal these openings effectively. During
construction or major renovations, consider
installing continuous air barrier systems to
create a more airtight building envelope. 5.
Unsealed Plumbing and Utility PenetrationsPlumbi
ng and utility penetrations in walls, floors, and
ceilings often lead to air leakage problems. To
address this issue, use silicone or acrylic latex
caulk to seal around plumbing and utility
penetrations effectively. For larger gaps,
utilize expanding foam insulation to fill the
space around these penetrations.
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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Final Overview Addressing common air tightness
issues in buildings is crucial for enhancing
energy efficiency, improving indoor air quality,
and ensuring occupant comfort. By identifying and
fixing air leaks, building owners reduce energy
consumption and create a healthier indoor
environment, contributing to sustainability and
cost savings in the long term. Explore Southern
Assessors air tightness testing services in
buildings to ensure a healthier, more sustainable
future for your spaces.
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk
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Contact Us
Phone No 0800 6123801
Mail Us email-info_at_southern-assessors.co.uk
Website
www.southern-assessors.co.uk