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Installing concrete lintel in fireplace

Lime Plastering Builders, Burnley Lancashire

This project involved replacing old timber lintels with new concrete lintels. Started in January 2006 for private client, this project lasted for 4 weeks.

We installed acro props with strongboys to hold up the chimney breast as we replaced the old timber lintels. Our Specialist Building team in Burnley are use to working with Lime Mortar etc.

Concrete lintel installed in fireplace

After installing the new pre-cast concrete lintels we rebuild the brickwork above. Once this had been left for a few days we removed the acro's and rebuilt the brickwork. Most General Builders in Burnley do not have experience with the use of Lime Mortar. We use a Lime Plaster this is a mix of Lime Mortar & Sand with a Goat Hair for reinforcement. Traditional Lime Plasterers are skilled in application of Lime Plaster on all surfaces like brick, stone or lath. On this restoration project we applied Lime Plaster onto a brick surface. The brickwork has to be wetted down prior to application. The Lime plaster is applied with a steel trowel as you would normally do with a gypsum plaster. All repairs to the brickwork must be allowed to dry before applying plaster

Concrete lintel installed over door
We also replaced the old timber lintels over the doorways and replaced with concrete lintels. The traditional timber lintels had rotten. We used acro props and strong boys to hold up the brickwork above the door as we replaced the lintel. The mortar used for repairing the doorway was a lime mortar using a NHL lime. When lime plastering over a concrete or timber lintel you need to install a reinforcing mesh to prevent the lime plaster from cracking. Lime plaster can crack for a number of reasons normally it is because the applicators is not experienced in lime mortar plastering. Our restoration contractors have years of experience in plastering with lime mortar. Applying lime plaster normally takes longer than applying a standard gypsum plaster.
Removing paint on chinmey breast ready for Lime Plaster
We had to remove all the modern paint from the brickwork before we started Lime Plastering. We did this using an air powered needle gun. We have a number of paint removal systems at UK Restoration Services. Our most popular is called the Farrow system it uses grit media mixed with water under a regulated air pressure. The air pressure can be adjusted to allow greater or lower pressure depending on what surface the paint is being removed from. On this project we used a air powered needle gun to remove the paint from the internal brickwork. This allowed use to strip the paint without making too much of a mess internally.
Lime Plastering inside fireplace
Lime Plastering inside the fireplace, we applied 3 coats of Lime Plaster on the brickwork. We had to wash down all the old soot from the inside of the fireplace, to achieve a good bond. We used a lime based plaster around the fireplace as this does not cause the plaster to crack. Normal gypsum plaster can crack around the fireplace area due to the heat of the fires. Our restoration plastering contractors work throughout the North West of the UK. This project was in Burnley, Lancashire but we do travel to Blackburn, Bury, Nelson, Colne, Clitheroe, Whalley, Oldham, Wigan, Preston, Lancaster and Blackpool Lime Plastering builders. Our experienced building and builders can lime plaster on all backgrounds with traditional lime plaster.
Lime Plastering in Fireplace
Lime Plastering inside the fireplace. The Lime Plaster will help the walls breathe, our builders are expert Lime Plasterers. Lime Plaster can help with Rising Damp and Dampness. Most modern day plasters trap the moisture in the wall causing mould growth & damp. The Lime Plaster allows moisture to pass through (breathing). We undertake allot of lime plastering in Clitheroe and the surrounding areas. The first coat of lime plaster onto brickwork is normal around 10mm thick, but this can depend on the type of brickwork. Our restoration contractors in lime plastering can apply plaster to any background, the builders can also plaster with modern gypsum plaster "skimming". We can also plaster with bonding and browning plaster.
Lime Plaster inside fireplace
The internal of the fireplace has received the 1st base coat of Lime Plaster. This will be lined up ready to received to 2nd base coat of Lime Plaster. Once the first coat of Lime Plaster is applied we leave the plaster for up to 7 days to allow the setting action to take place. Depending on the brickwork or stonework type this can be from 2 days to 7 days and sometimes longer. Some backgrounds needs a thick pointing before any lime plastering takes place these are normally stonework backgrounds. Most brickwork background can be lime plastered in 2 or 3 coats of lime plaster. Lime plastering is normally take longer than modern plasters.
Lime Plastering onto a brick wall
Lime Plastering onto brickwork, here we are applying the 1st Lime Plaster basecoat. There are a number of different lime plaster types.For the base coats these are traditionally made with a course sand called "course stuff". The sand is from 3mm down, this makes the lime plaster very heavy to work with. The limes that can make the lime plaster "course stuff" are Lime Putty, this gives a very creamy lime plaster that is also very sticky and apply well to solid backgrounds like brickwork and stonework. The Lime Putty lime plaster is also the most breathable but this also makes it the softest lime plaster.
Lime Plastering chimney breast
2nd Lime Plaster base coat being applied by our Lime Plasterer using a Lime Putty based Lime Plaster. NHL 2 lime plaster is a dry powder that is mixed with sand. This type of lime plaster is best mixed in a paddle mixer. The NHL 2 will allow the lime plaster to have a Hydraulic setting action once applied to background. The NHL 2 lime plaster does not make as sticky lime plaster as the lime putty. Other lime binders for lime plaster are NHL 3.5 and NHL 5 we don't normally use these other to lime binders too often as they are not as breathable as the lime putty and the NHL 2 binder. The second coat of lime plaster is floated with cross grain float after application with a steel trowel.
 wetting down Lime Plaster
Builders Wetting down 2nd base coat of Lime Plaster, this is to stop the Lime Plaster drying to quickly. This project in Burnley Lancashire took 3 weeks to complete. Our restoration contractors apply post care to the lime plaster after applying. We are the best Lime Plastering in Lancashire, Yorkshire, Cumbria and Manchester. We work on traditional building that are Grade 1 listed buildings and Grade 2 listed building lime plastering in Manchester. On this 2nd lime plaster we will apply a top coat lime plaster. We have worked on many buildings like cottages, houses, listed buildings and monuments. Lime plaster can also be applied to new blockwork and brickwork, there is available now modern blended lime plasters but these are not the same as traditional lime plaster.

 

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