In Balance Energy

Solar & Electrical | Services & Systems

Home Services Systems About Contact

 

The effects damp can have on buildings

It is important to be aware that there are different types of dampness with each having a different solution. The types of dampness that you might find are:

Back to Articles

Rising Damp

Rising Damp is caused by moisture rising up through porous masonry and is usually found in older buildings constructed without a damp proof course or where the existing damp proof course has failed or has been bridged. Moisture carries with it soluble ground salts, including nitrates and chlorides, which can be deposited into the masonry as rising damp evaporates.

The effects of long term rising damp on your home can take the form of low level decorative spoiling and staining of paintwork and wall papers, plaster damage and salt contamination as well as the decay of timber skirtings, joinery and structural floor timbers. Rising damp is the result of capillary moisture and will therefore never take the form of 'free surface moisture' or 'water droplets' on a wall.

Remedial treatment of rising damp would normally involve the introduction of a chemical injection damp proof course using liquid silicone based materials or injectable 'mortar based' grouts. Severe dampness will also result in plaster damage and contamination and therefore replastering of the walls is generally required to provide a dry 'non-spoiling' decorative finish and to complete the system of damp control. The new plasterwork has an important function to perform and must be able to prevent hygroscopic salts passing to the surface from the underlying masonry substrate.

Lateral penetrating dampness

Lateral penetrating dampness normally occurs on external walls where the external ground levels are at a higher level than the internal floors and as a consequence dampness penetrates the walls fabric. A typical example of lateral dampness is in a basement where external walls are built against the external (subterranean) ground. Other causes of lateral dampness can be due to raised gardens and soil levels, flower beds, abutting garden walls, paths and pavements.

Methods of controlling penetrating dampness below ground level would depend mainly on the proposed use and the level of dryness required. Vertical waterproofing or tanking can take different forms and when applied correctly can provide dry walls & floors by either using cementitious slurries, water proof render systems or cavity drainage membranes.

Vertical penetrating dampness

Vertical penetrating dampness is caused by building defects and poor building maintenance. Roof defects, leaking, blocked guttering and downpipes, will contribute to the most common causes of dampness and are proven to be responsible for a high percentage of dry rot attacks caused on buildings.

Cracked rendering, defective pointing, external coatings and blocked cavities, along with inadequate window and door sealants are also responsible for moisture ingress, along with internal plumbing defects and poor external drainage.

Top of page

 

Articles

Further reading and calculators related to designing, installing, repairing and maintaining solar photovoltaic and electrical systems:

Mains Power Supplies & Earthing Systems

Mains Supply and Earthing Systems: Location & accessability, supply systems, earthing, bonding, labelling, installing RCDs.

Types of Solar Photovoltaic (PV) System

Introduction to the different types of Photovoltaic (PV) System available including Grid Tied, Off-Grid, Hybrid and Batteryless solar PV systems.

Solar PV System Components

Overview of the basic components needed to install a complete solar PV system. Introduction to solar PV panels. power inverters, AC & DC isolators and mounting systems.

Free Solar PV Calculators

A list of free solar PV calculators, solar design tools and software, Use to calculate solar yields and the Return on Investment (ROI) for solar PV systems.

Engineering Recommendation G98

Grid Connections for Micro-Generators including Solar PV Systems and Elecricity Storage Systems in the UK. Under 16Amps Per Phase, grid synchronised.

Solar PV: Smart Export Guarantee

Interesting times ... The Smart Export Guarantee came into affect in January 2020. The Smart Export Guarantee is an obligation set by the government for licensed electricity suppliers to offer a tariff and to pay small-scale low carbon Generators and Micro-generators for any electricity that they export to the National Grid.

Evaluating Solar PV Panels - Which panels to buy?

What to look for when evaluating and selecting solar PV panels for UK installations. Electrical characteristics of solar PV arrays and the safety factors used for selecting BoS equipment, also mounting options.

Solar Panels - PV Array Calculator

Solar Panels: Solar PV System sizing and power yield calculator. Use to work out roof layouts, PV array sizes, No. of panels and power yields. Based on SAP 2009.

Flat Roof Solar PV Array Spacing / Shade Calculator

The minimum required space between parallel rows to avoid shading is decided by the height of the array immediately in front, the slope of the roof and the lattitude of the installation site. This table illustrates the different row spacings required for optimum positioning in different locations.

Solar Electricity - Frequently Asked Questions (FAQs)

How to size a system?, What is kWp?, What is the difference between a kilowatt (kW) and a kilowatt hour ( kWh)?, How does a solar PV system work? Can I add more solar panels to my system? How do I know if my solar panels are working?

Preparing for a Solar Panel Installation

As with any construction project the success and efficiency of a solar PV panel installation comes down to good planning. Some advice for potential system owners preparing for a new solar panel installation.

Planning Permission for Solar Photovoltaic (PV) Systems

A solar PV installation can be classed as 'permitted development' subject to conditions and when not located within a conservation area, AONB or world heritage site.

Solar PV, Safety & The Building Regulations

Residential PV systems notifiable under Part P. Special consideration needed for Part A. A combination of serious risks for solar PV installers.

Safely Retrofitting Solar PV Roof Mounts

The things to consider before installing a retrofited solar PV system on a roof and an introduction to the type of equipment used to secure an on-roof solar PV system.

Smart Switching / Solar PV Power Switching

Available as an addition to existing solar PV systems or installed as a package alongside a new system, Smart switching puts full control of a solar PV system's power output firmly in the hands of the system owner.

Solar Photovoltaic (PV) & Electrical Glossary of Terms

An alphabetical list of many of the industry and technical terms you are likely to come across when installing a solar PV system. The glossary also defines terms that are used in roofing and electrical work as well as in solar PV installation and solar manufacturing.

Electrical Warning Signs & Labelling

A quick overview of some common electrical warning signs and labels that you might find attached to electrical equipment.

ABB / Power One Aurora Inverter Faults and Repairs

Power One, at one point were the second ranked inverter manufacturer in the world and there are many Power One Aurora Inverters installed in the UK. The most popular models being the Uno PVI-3.0-TL-OUTD and the Uno PVI-3.6-TL-OUTD.

Fronius IG / IG Plus Inverter Faults and Repairs

Fronius IG and IG Plus series inverters have LCD displays on the front of the chassis that providing it's working, will highlight any errors with the inverter or the solar PV system that it runs.

Mastervolt Inverter Faults and Repairs

Mastervolt Sunmaster and the smaller Soladin ranges of inverters were widely installed in the UK between 2011 and 2014. Popular Sunmaster models being the Sunmaster XS2000, Sunmaster XS3200 and the Sunmaster XS4300.

SMA Sunnyboy Inverter Faults and Repairs

SMA Sunnyboy Inverters have been widely installed in the UK, some of the most popular being the SB1200, SB2000 and SB3000. High frequency models include the SB2000HF, SB2500HF, and SB3000HF. Transformerless models include the SB3000TL and the SB3600TL.

SolarEdge Inverter and Optimser Faults and Repairs

The SolarEdge system is unique and in our opinion unrivalled in terms of it's ability to monitor system performance down to panel level. This is achieved through the installation of a small unit called an optimiser.

Sonnen Macht Inverter Faults and Repairs

The problem we often find with these inverters are damaged relays, the tell tale sign of a relay failure is an Error 19: Relay or Error 19: Relay Fault warning displayed on the inverter's display.

Top of page

Areas Served:

Swindon: Abingdon, Aldbourne, Andover, Banbury, Basingstoke, Bath, Berkshire, Bicester, Blunsdon, Box, Bracknell, Bradford on Avon, Bristol, Burford, Calne, Camberley, Carterton, Cheltenham, Chippenham, Chipping Norton, Chipping Sodbury, Cirencester, Corsham, Cricklade, Devizes, Didcot, Evesham, Faringdon, Fleet, Gloucester, Gloucestershire, Hampshire, Henley-on-Thames, Highclere, Highworth, Hook, Hungerford, Keynsham, Kingsclere, Lambourn, Lechlade, Lyneham, Maidenhead, Malmesbury, Marlborough, Marshfield, Melksham, Minety, Newbury, Oxford, Oxfordshire, Pewsey, Purton, Ramsbury, Royal Wootton Bassett, Salisbury, Shalbourne, Slough, Stow, Swindon, Tewkesbury, Thatcham, Trowbridge, Wanborough, Wantage, Warminster, Wiltshire, Winchester, Windsor, Witney, Wokingham, Worcester, Wroughton and Yate.

Torquay: Babbacombe, Bantham, Barnstaple, Bideford, Bodmin, Bridgewater, Brixham, Bude, Burnham-on-Sea, Chard, Cleveden, Cornwall, Crewkerne, Devon, Dorset, Exeter, Exmouth, Frome, Glastonbury, Holsworthy, Honiton, Ivybridge, Kingskerswell, Launceston, Lyme Regis, Lynton, Marldon, Minehead, Newquay, Newton Abbot, Okehampton, Painton, Plymouth, Salcombe, Seaton, Sidmouth, Somerset, Street, Stroud, Taunton, Tiverton, Torquay, Totnes, Wellington, Wells, Weston-super-Mer, Weymouth and Yeovil.

Derby: Ashbourne, Ashyby-de-la-Zouch, Bakewell, Beeston, Birmingham, Burton upon Trent, Buxton, Cannock, Cheadle, Chesterfield, Coalville, Congleton, Corby, Coventry, Crewe, Derby, Grantham, Kettering, Leek, Leicester, Lincoln, Long Eaton, Loughborough, Macclesfield, Matlock, Melton Mowbray, Newark-on-Trent, Nuneaton, Oakham, Peterborough, Sheffield, Sleaford, Stafford, Stamford, Stoke-on-Trent, Sutton Coldfield, Sutton-in-Ashfield, Swadlincote, Tamworth, Telford, Uppingham, Uttoxeter, Wigston, Wolverhampton and Worksop.

York: Barnard Castle, Barnsley, Beverley, Boroughbridge, Bradford, Bridlington, Burnley, Castleford, Darlington, Doncaster, Driffield, Easingwold, Goole, Halifax, Harrogate, Hartlepool, Helmsley, Hessle, Hornsea, Huddersfield, Hull, Keighley, Leeds, Malton, Manchester, Market Weighton, Middlesborough, North Yorkshire, Pocklington, Pontefract, Ripon, Rotherham, Scunthorpe, Selby, Sheffield, Skipton, South Yorkshire, Stockport, Thirsk, Wakefield, West Yorkshire, Wetherby, Whitby, Withernsea, York and the Yorkshire Dales.

East London Basildon, Barking, Bexley, Blackheath, Braintree, Brentwood, Brixton, Bromley, Burnt Oak, Canvey Island, Chatham, Chelmsford, Cheshunt, Chigwell, City of London, Croydon, Dagenham, Dartford, Dulwich, Edgware, Enfield, Essex, Gravesend, Grays, Greater London, Grenwich, Harlow, Hatfield, Hertfordshire, Hornchurch, Ilford, Kent, London Docklands, Maidstone, Mill Hill, Orpington, Peckham, Rainham, Rayleigh, Rochester, Romford, Sevenoaks, Sidcup, Southend-on-Sea, Stoke Newington, Stratford, Tilbury, Waltham, Walthamstow, Westminster, Wickford, Woodford and Woolwich.

Residential - Commercial - Agricultural - Industrial

©2007 - 2020 In Balance Energy Ltd