Nationwide Louvre Company Aldridge, Walsall, Aluminium Fabrications and Manufacturers
Naturalvent Limited not just Naturalvent.
Friday, 6 April 2012
Monday, 2 April 2012
A natural ventilation system should be effective regardless of wind direction news on PlumbingPark.co.uk
A natural ventilation system should be effective regardless of wind direction news on PlumbingPark.co.uk
For air to move into and out of a building, a pressure difference between the inside and outside of the building is required. The resistance to flow of air through the building will affect the actual air flow rate. In general, controlled natural ventilation and infiltration are driven by pressure difference across the building envelope. The pressure difference is caused by:
• wind (or wind effect);
• difference in air density due to temperature difference between indoor and outdoor air (stack or chimney effect); or
• combination of both wind and stack effects.
In most cases, natural ventilation depends on a combined force of wind and stack effects. The pressure patterns for actual buildings continually change with the relative magnitude of thermal and wind forces. The pressures due to each effect are added together to determine the total pressure difference across the building envelope.
The relative importance of the wind and stack pressures in a building depends on building height, internal resistance to vertical air flow, location and flow resistance characteristics of envelope openings, local terrain, and the immediate shielding of the building structure
Guidelines for natural ventilation
The following guidelines are important for planning and designing natural ventilation systems in buildings:
• a natural ventilation system should be effective regardless of wind direction and there must be adequate ventilation even when the wind does not blow from the prevailing direction;
• inlet and outlet openings should not be obstructed by nearby objects;
• windows should be located in opposing pressure zones since this usually will increase ventilation rate;
• a certain vertical distance should be kept between openings for temperature to produce stack effect;
• openings at the same level and near the ceiling should be avoided since much of the air flow may bypass the occupied zone;
• architectural elements like wingwalls, parapets and overhangs may be used to promote air flow into the building;
• topography, landscaping, and surrounding buildings should be used to redirect airflow and give maximum exposure to breezes;
• in hot, humid climates, air velocities should be maximised in the occupied zones for bodily cooling;
• to admit wind air flow, the long façade of the building and the door and window openings should be oriented with respect to the prevailing wind direction;
• if possible, window openings should be accessible to and operable by occupants;
• vertical shafts and open staircases may be used to increase and generate stack effect;
• openings in the vicinity of the neutral pressure level may be reduced since they are less effective for thermally induced ventilation;
• if inlet and outlet openings are of nearly equal areas, a balanced and greater ventilation can be obtained.
Naturalvent Limited is based on the West Midlands for easy access to all parts of the United Kingdom. Naturalvent Limited offer a supply only or full contract service including site survey's and project specific manufacturing drawings for the customers approval, bespoke manufacture and installation.
Naturalvent Limited's have expert staff, with a very experienced design team and expert installation engineers providing a service and quality to be very proud of. Should an architect or design engineer have an idea that in not currently on the market Naturalvent Limited will either adapt or modify existing designs or start from scratch and develop the architect’s idea from concept through to installation.
Naturalvent Limited also supply and install high quality extruded aluminium weather louvres, louvre screens, plantroom louvres, louvred doors, louvred penthouse enclosures, acoustic louvres and solar shading through out the United Kingdom and ROI.
Naturalvent Limited have four standard blade profiles of 34mm, 50mm, 75mm and 100mm but will manufacture any size blade required using CNC tooling. Most louvres are supplied polyester powder coated to a standard RAL or BS 4800 colour and gloss level however other finishes are available such as milled aluminium, syntha pulvin, PVF2, anodised, and other polyester powder ranges such as NCS ranges and timber effects.
Naturalvent Limited use their new computer programme to design solar shading to buildings in any location in Europe. Naturalvent Limited can confirm the shading effects to buildings given the location, elevation of the building and the size of the windows.
All louvres and solar shading systems are manufactured to order to suite the customers opening sizes with average lead times are approx three to four weeks depending on work loads at the time of issue.
For air to move into and out of a building, a pressure difference between the inside and outside of the building is required. The resistance to flow of air through the building will affect the actual air flow rate. In general, controlled natural ventilation and infiltration are driven by pressure difference across the building envelope. The pressure difference is caused by:
• wind (or wind effect);
• difference in air density due to temperature difference between indoor and outdoor air (stack or chimney effect); or
• combination of both wind and stack effects.
In most cases, natural ventilation depends on a combined force of wind and stack effects. The pressure patterns for actual buildings continually change with the relative magnitude of thermal and wind forces. The pressures due to each effect are added together to determine the total pressure difference across the building envelope.
The relative importance of the wind and stack pressures in a building depends on building height, internal resistance to vertical air flow, location and flow resistance characteristics of envelope openings, local terrain, and the immediate shielding of the building structure
Guidelines for natural ventilation
The following guidelines are important for planning and designing natural ventilation systems in buildings:
• a natural ventilation system should be effective regardless of wind direction and there must be adequate ventilation even when the wind does not blow from the prevailing direction;
• inlet and outlet openings should not be obstructed by nearby objects;
• windows should be located in opposing pressure zones since this usually will increase ventilation rate;
• a certain vertical distance should be kept between openings for temperature to produce stack effect;
• openings at the same level and near the ceiling should be avoided since much of the air flow may bypass the occupied zone;
• architectural elements like wingwalls, parapets and overhangs may be used to promote air flow into the building;
• topography, landscaping, and surrounding buildings should be used to redirect airflow and give maximum exposure to breezes;
• in hot, humid climates, air velocities should be maximised in the occupied zones for bodily cooling;
• to admit wind air flow, the long façade of the building and the door and window openings should be oriented with respect to the prevailing wind direction;
• if possible, window openings should be accessible to and operable by occupants;
• vertical shafts and open staircases may be used to increase and generate stack effect;
• openings in the vicinity of the neutral pressure level may be reduced since they are less effective for thermally induced ventilation;
• if inlet and outlet openings are of nearly equal areas, a balanced and greater ventilation can be obtained.
Naturalvent Limited is based on the West Midlands for easy access to all parts of the United Kingdom. Naturalvent Limited offer a supply only or full contract service including site survey's and project specific manufacturing drawings for the customers approval, bespoke manufacture and installation.
Naturalvent Limited's have expert staff, with a very experienced design team and expert installation engineers providing a service and quality to be very proud of. Should an architect or design engineer have an idea that in not currently on the market Naturalvent Limited will either adapt or modify existing designs or start from scratch and develop the architect’s idea from concept through to installation.
Naturalvent Limited also supply and install high quality extruded aluminium weather louvres, louvre screens, plantroom louvres, louvred doors, louvred penthouse enclosures, acoustic louvres and solar shading through out the United Kingdom and ROI.
Naturalvent Limited have four standard blade profiles of 34mm, 50mm, 75mm and 100mm but will manufacture any size blade required using CNC tooling. Most louvres are supplied polyester powder coated to a standard RAL or BS 4800 colour and gloss level however other finishes are available such as milled aluminium, syntha pulvin, PVF2, anodised, and other polyester powder ranges such as NCS ranges and timber effects.
Naturalvent Limited use their new computer programme to design solar shading to buildings in any location in Europe. Naturalvent Limited can confirm the shading effects to buildings given the location, elevation of the building and the size of the windows.
All louvres and solar shading systems are manufactured to order to suite the customers opening sizes with average lead times are approx three to four weeks depending on work loads at the time of issue.
Nationwide Louvre Company the louvre experts in solar shading, architectural louvre systems and acoustic noise reduction equipment
Nationwide Louvre Company the louvre experts in solar shading, architectural louvre systems and acoustic noise reduction equipment
Visit the Nationwide Louvre Company web site and see the large range of completed projects in the case study section. All products are manufactured to the customers requirements and sizes.
Visit the Nationwide Louvre Company web site and see the large range of completed projects in the case study section. All products are manufactured to the customers requirements and sizes.
Nationwide Louvre Company the louvre experts in solar shading, architectural louvre systems and acoustic noise reduction equipment
Nationwide Louvre Company the louvre experts in solar shading, architectural louvre systems and acoustic noise reduction equipment
Naturalvent Limited not just Naturalvent.
Naturalvent Limited not just Naturalvent.
Wednesday, 21 March 2012
Friday, 16 March 2012
Friday, 24 February 2012
Monday, 20 February 2012
Monday, 13 February 2012
Wednesday, 8 February 2012
Wednesday, 1 February 2012
Adjustable blade Louvred Doors
NLC have just launched an adjustable blade louvred doorset on the market. The louvre blades can be closed in extreme weather conditions and can be opened up for ventilation in warm conditions. The closed position also allows added security.
Friday, 11 February 2011
Automated Louvres
Nationwide Louvre Company save the bells
Nationwide Louvre Company designed, manufactured and installed double bank weather louvres with motorised heavy duty shut off dampers to the bell tower at Dublin Cathedral.
The double bank louvres reduced the possibility of water ingress, but due to the very exposed location of the louvres, heavy duty shut off damper with a closure rate of 99.9% shut off were fitted.
The dampers were fitted with fail safe (spring return) actuators that allowed each of the elevations to be opened or closed separately.
This was of particular interest to the architect (Mr John Baumont), as the Cathedral were able to close off the louvres whilst bell ringing practice took place reducing the effect the bells had on local residents during the week.
Wednesday, 2 February 2011
Monday, 31 January 2011
Naturalvent combined with Solar Shading
There are a number of ways to create natural ventilation in a building. One of the most basic is probably also one of the most effective: create windows which open to generate wind driven ventilation. By opening and closing windows, people can control the flow of air through a structure, opening more windows to encourage fresh air, which can cool a structure in addition to carrying away smells, and closing windows to generate less of a flow of air, keeping a structure warmer.
Stack ventilation is another natural ventilation option. With stack ventilation, people rely on natural pressure differences between air in various locations to force air up ventilation stacks. This technique is often used in factories, where tremendous amounts of heat can be generated by machinery and manufacturing processes, with the warm air being pulled up the stacks along with odors from the factory floor.
Stack ventilation is usually facilitated with the use of controllable intake vents / louvres which are located low to the ground, generating a steady flow of fresh, cool air.
One of the biggest advantages of natural ventilation is that it does not cost large amounts of money to run. Mechanical ventilation and electronic climate control can be very costly, and may contribute significantly to the overall energy usage and carbon footprint involved with running a building.
Natural Ventilation with controllable weather louvres and (NLC) Roofavent wind terminals can be a sensible way of working with traditional low energy mechanical ventilation systems to ensure the perfect building environment.
The inclusion of a well designed Brise Soleil / Solar Shading system can help reduce solar gains through large glazed areas by up to 80% in the summer months. This will not only reduce cooling loads but reduce the sensation of over heating caused by the sun on the occupants skin.
For more information contact NLC or visit the web site.
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Stack ventilation is another natural ventilation option. With stack ventilation, people rely on natural pressure differences between air in various locations to force air up ventilation stacks. This technique is often used in factories, where tremendous amounts of heat can be generated by machinery and manufacturing processes, with the warm air being pulled up the stacks along with odors from the factory floor.
Stack ventilation is usually facilitated with the use of controllable intake vents / louvres which are located low to the ground, generating a steady flow of fresh, cool air.
One of the biggest advantages of natural ventilation is that it does not cost large amounts of money to run. Mechanical ventilation and electronic climate control can be very costly, and may contribute significantly to the overall energy usage and carbon footprint involved with running a building.
Natural Ventilation with controllable weather louvres and (NLC) Roofavent wind terminals can be a sensible way of working with traditional low energy mechanical ventilation systems to ensure the perfect building environment.
The inclusion of a well designed Brise Soleil / Solar Shading system can help reduce solar gains through large glazed areas by up to 80% in the summer months. This will not only reduce cooling loads but reduce the sensation of over heating caused by the sun on the occupants skin.
For more information contact NLC or visit the web site.
Friday, 28 January 2011
Thursday, 27 January 2011
Wednesday, 26 January 2011
Wednesday, 3 February 2010
Friday, 29 January 2010
Weather Louvre and Rear Mounted Fire Dampers
Aluminium weather louvres with rear mounted fire dampers and fully welded galvanised mild steel cavity box's supplied and fitted to the new Railtrack welding facility in Bristol.
Acoustic Louvres
The acoustic louvres screened off the air conditioning equipment to the roof area.
Friday, 2 October 2009
Roofavent Terminals
Naturalvent are about to release the new Roofavent range of roof terminals onto the market to attack the naturalventilation market.
Naturalvent Limited
Naturalvent Limited for natural ventilation products and equipment. Naturalvent Limited supply and install high quality extruded aluminium louvres, louvred roof terminals (Roofavent Units) wall units ( Wallavent ) window ventilators, acoustic window ventilators, insulated shut off dampers, and solar shading / brise soleil.
Natural ventilation is the process of supplying and removing air by means of purpose-provided aperture (such as openable windows, ventilators and shafts) and the natural forces of wind and temperature-difference pressures. For air to move into and out of a building, a pressure difference between the inside and outside of the building is required. The resistance to flow of air through the building will affect the actual air flow rate. In general, controlled natural ventilation and infiltration are driven by pressure difference across the building envelope. The pressure difference is caused by:• wind (or wind effect); • difference in air density due to temperature difference between indoor and outdoor air (stack or chimney effect); or • combination of both wind and stack effects. Naturalvent Limited harness this power to vent buildings using the new Roofavent and Wallavent terminals incorporating thermally broken insulated dampers and low voltage automated actuators.
Naturalvent Limited's in house installation engineers are currently working throughout the United Kingdom on many projects.
Naturalvent Limited can offer a full design, manufacture and installation package to suite the modern designers requirements.
Naturalvent Limited's in house installation engineers are currently working throughout the United Kingdom on many projects.
Naturalvent Limited can offer a full design, manufacture and installation package to suite the modern designers requirements.
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