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Damp Proofing

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Learn more about Internal Waterproofing

Internal Waterproofing Products

Old buildings often lack the structural waterproofing that protects them against penetrating damp and rising damp with its associated salts. At Permagard, we stock a range of internal waterproofing products to help protect homes from water ingress and related issues. 

Effects of Moisture Penetration

Any moisture penetration and water ingress into a property has a number of damaging effects:

  • Structural effects: Damage to timber elements, interior plasterwork and finishes.
  • Health and hygiene: Mildew, fungus and mould can form introducing harmful spores in the air.
  • Masonry work: Efflorescence bursting crystals of salt, cracks, and spalling. See our Salt Inhibitor.
  • Room climate: Uncomfortable chill and dampness, reduction of heat insulation, increased heating costs.

Tanking Systems

Cementitious tanking systems are designed to alleviate all of these problems with moisture penetration. This helps create a warm, waterproof and habitable spaces. Permagard structural waterproofing systems consist of cementitious waterproof tanking, multi purpose waterproofing and mortars. When installed, these interior waterproofing systems effectively block the passage of water whilst remaining vapour permeable, allowing the structure to breathe.

Our PermaSEAL Tanking Slurries are ideal for tanking basements and cellars. We also stock Crystalline Tanking Slurry. PermaSEAL PRO MP 2C multi-purpose waterproofing can be used below ground to protect against negative water pressure. It is highly flexible with crack-bridging qualities, as well as being radon-tight.

Read our complete guide to wall tanking.

Advantages of Internal Damp Proofing Systems:

Allow you to gain additional living space without having to increase the footprint of the building:
Waterproofed and restored cellars and basements can be made into fantastic living spaces as well as useful spaces for a whole range of purposes from laundry to hobbies. Read more on basement conversions.

Commercial value:
Increase of commercial space for office / retail use, particularly where space is at a premium.

Increase value:
Waterproofing a cellar will considerably increase the living space of a house and is a proactive way to increase the value of a property.

Save on heating costs:

A cellar acts as a heat and moisture barrier between the ground and living spaces on upper levels and therefore helps save on heating costs.

In summary, a room that has been restored or structurally waterproofed using these products creates a more habitable living space. This increases the comfort of the property and saves money in the long run.

These damp proofing products can be used above or below ground in any area that is subject to water ingress. This may simply be where an internal floor level is below the external ground level and waterproofing is required for the lower part of the wall below the damp proof course. Alternatively, they may be used in a flooded basement to prevent water penetration and hold back water under hydrostatic pressure.

Permagard - Providing Solutions. Inspiring Confidence.

If you require further information about internal damp proofing and tanking slurries please do not hesitate to contact one of our technical team on 0117 982 3282. We’re here to help and have over thirty years of experience.

Read our Complete Guide to Internal Damp Proofing.