Step 5 Pressure Balancing of The Seven Steps of Building a Synergy Home. Air that is supplied to a room needs a return pathway back to the air handler when the door is closed.
Combustion Safety - Step 7 of The Seven Steps of Building a Synergy Home. Failure to follow combustion safety guidelines can lead to Carbon Monoxide poisoning and death.
This document discusses moisture management in home construction. It outlines the four major moisture transport mechanisms: bulk transport, capillary transport, air transport, and vapor diffusion. It emphasizes that air-transported moisture is a major concern and outlines strategies to manage moisture, including proper drainage, vapor barriers, air sealing, ventilation, and humidity control. The overall goal is to build homes that are tolerant of moisture through overlapping moisture management strategies.
Airtight Construction - Step 1 of The Seven Steps of Building a Synergy HomeTodd Witt
Airtight Construction is Step 1 of The Seven Steps of Building A Synergy Home. Airtight Construction is the foundation of energy efficient building. However, in absence of the other 6 Steps a home may experience major issues.
Fresh air ventilation is an important part of building a healthy home but is often overlooked. Exhaust fans, appliances, and air sealing can negatively pressurize a home, pulling in moisture and contaminants if makeup air is not provided. Proper ventilation requires installing fans that adequately vent to the outside, sealing ducts and connections, and introducing filtered fresh air to replace exhausted air. Without testing, many ventilation issues would go unnoticed.
This document discusses improvements to building codes and energy efficiency standards, with a focus on proper insulation and air sealing techniques. It notes that the 2009 International Residential Code now addresses energy efficiency, not just health and safety. It emphasizes the importance of airtight construction, proper insulation installation and alignment with the air barrier, quality spray foam insulation, and low-E windows to improve a home's energy efficiency and comfort.
Home energy audits are needed to ensure that your home performs. Don't waste money on energy efficient upgrades until having an energy audit performed.
An HVAC load calculation is a mathematical process that determines the best size, type, and style of HVAC system for a home by verifying details like square footage, windows, insulation, and ductwork. It is important to have a load calculation done before replacing an HVAC system because it will pick the correctly sized system, reduce energy consumption, help diagnose issues, and save money on bills. Many HVAC companies provide load calculations for free.
Combustion Safety - Step 7 of The Seven Steps of Building a Synergy Home. Failure to follow combustion safety guidelines can lead to Carbon Monoxide poisoning and death.
This document discusses moisture management in home construction. It outlines the four major moisture transport mechanisms: bulk transport, capillary transport, air transport, and vapor diffusion. It emphasizes that air-transported moisture is a major concern and outlines strategies to manage moisture, including proper drainage, vapor barriers, air sealing, ventilation, and humidity control. The overall goal is to build homes that are tolerant of moisture through overlapping moisture management strategies.
Airtight Construction - Step 1 of The Seven Steps of Building a Synergy HomeTodd Witt
Airtight Construction is Step 1 of The Seven Steps of Building A Synergy Home. Airtight Construction is the foundation of energy efficient building. However, in absence of the other 6 Steps a home may experience major issues.
Fresh air ventilation is an important part of building a healthy home but is often overlooked. Exhaust fans, appliances, and air sealing can negatively pressurize a home, pulling in moisture and contaminants if makeup air is not provided. Proper ventilation requires installing fans that adequately vent to the outside, sealing ducts and connections, and introducing filtered fresh air to replace exhausted air. Without testing, many ventilation issues would go unnoticed.
This document discusses improvements to building codes and energy efficiency standards, with a focus on proper insulation and air sealing techniques. It notes that the 2009 International Residential Code now addresses energy efficiency, not just health and safety. It emphasizes the importance of airtight construction, proper insulation installation and alignment with the air barrier, quality spray foam insulation, and low-E windows to improve a home's energy efficiency and comfort.
Home energy audits are needed to ensure that your home performs. Don't waste money on energy efficient upgrades until having an energy audit performed.
An HVAC load calculation is a mathematical process that determines the best size, type, and style of HVAC system for a home by verifying details like square footage, windows, insulation, and ductwork. It is important to have a load calculation done before replacing an HVAC system because it will pick the correctly sized system, reduce energy consumption, help diagnose issues, and save money on bills. Many HVAC companies provide load calculations for free.
This document provides construction details and specifications for a new passive house in Scranton, Pennsylvania. It includes floor plans, building elevations, wall sections, and outlines of the building enclosure systems. The 2-story house has over 1,700 square feet of living area and uses high-performance building techniques like triple-pane windows, dense-packed cellulose insulation, an energy-recovery ventilator and an air-tight building envelope to achieve a certified passive house standard with a projected annual heating demand of only 888 kBTU.
You roof is a system. It has many components that add to its success or failure. Your attic plays a big role and without proper ventilation it becomes a risk.
The document discusses various insulation strategies for walls and roofs. It provides advantages and disadvantages of interior insulation, exterior insulation, and split insulation for walls. For roofs, it discusses interior insulation and exterior insulation. It also discusses the importance of continuity in the building enclosure and limiting air and moisture infiltration. Several case studies demonstrate issues with exterior air infiltration and interior air and moisture infiltration. The document stresses the importance of addressing air and moisture infiltration before adding insulation. It also discusses the pencil test for building plans and sections, as well as the importance of compatible materials and details.
First Passive House Retrofit in a Cold Climate: The MinnePHit HouseTE Studio
This presentation was given by Tim Delhey Eian of TE Studio on Tuesday, September 23rd, at the 2014 NAPHN Passive House Conference in Portland, Maine. It showcases the first cold climate Passive House retrofit (EnerPHit) project which TE Studio designed, and the Passivhaus Institut in Darmstadt (Germany) certified as a pilot EnerPHit project.
This document provides details about the first certified Passive House Plus project in Minnesota. It is a single-family home located in St. Paul that prioritizes views, accessibility, health, sustainability and energy efficiency. The building envelope and materials are designed to meet Passive House standards with high insulation values, an air-tight envelope, and triple-pane windows. Diagrams and details are included to illustrate the construction methods for walls, roof, foundation, and windows.
The document summarizes the Nordeast Nest, a custom eco home built in Minneapolis, MN from 2012-2014 that incorporates passive house principles and components. It achieved a very low annual heating demand of 32 kWh/m2 through an extremely well insulated and airtight building envelope. Key elements included walls with R-values of R-51 and R-39, a cold roof with R-70 insulation, high performance windows and doors, and an extremely tight air barrier that achieved an airtightness of 0.36 ACH50. HVAC systems included an energy recovery ventilator, air source heat pumps for heating and cooling, and a tankless water heater to provide heating, cooling, ventilation
NH HPH Features and Benefits- 3 year Warrantee Guarantee davidjthomas
Neumann Homes provides high-performance, energy efficient homes that guarantee comfort and lower utility bills. Their Environments for Living program focuses on healthy indoor air quality through sealed HVAC ducts, fresh air intake, and tight building envelopes. Homes are certified through third-party testing to ensure proper installation of insulation, air sealing, and efficient mechanical systems. This includes a 3-year guarantee on heating and cooling costs and indoor comfort.
Ventilated attics are prone to moisture problems in the Coastal Pacific Northwest climate. This presentation discusses recent research investigating the causes of these issues, and presents cutting edge findings regarding potential solutions.
This community building in Huaibeizhuanjcun, Beijing, China has a total area of 3,727.1 square meters or 40,117.7 square feet. It is split into two halves, with one half embedded underground to provide classroom and lab spaces, while the other half above ground contains community service areas. The building utilizes earth berming and a geothermal heat pump connected to a pond for sustainable heating and cooling. It employs a hybrid HVAC system using the geothermal heat pump and fan coil units, along with fresh air intake ducts and filters to improve indoor air quality.
Current Issues with Ventilated Attics
Case Study of Repairs
Attic Roof Hut Research & Monitoring Study – Key Findings
Performance of Potential Solutions
Ongoing Research & Field Trials
SPF Insulation Build It Tight Ventilate It Right JPL 10-10-2015 2016 IAQA Ann...John P. Lapotaire, CIEC.
This presentation will be discussing the issues with the reduction of the necessary natural or passive ventilation in a home that is substantially reduced when SPF insulation is installed. The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) have had a residential ventilation standard since 2003, ASHRAE 62.2. So while a home’s recommended minimum ventilation rate remained unchanged for many years, ASHRAE has recognized the tighter construction of today’s homes and 10 years after the initial ASHRAE 62.2, there are new and controversial changes to the 2013 version of ASHRAE 62.2.
The document summarizes the top 10 defects found in new homes by home inspectors, including:
1) Foundation clearance issues allowing water intrusion.
2) Improper attic ventilation leading to moisture issues.
3) Improper gutter and downspout placement directing water to cause damage.
4) Structural issues from plumbing and HVAC installations cutting into structural components.
5) Electrical defects from improper panel sizing or light installations.
6) Safety issues from water heater installations or improper receptacle placements.
7) Construction errors from last minute changes or lack of coordination.
This document provides information for a student design project proposing a community building in Huaibeizhuanjcun, Beijing, China. It includes the design intent, program, location, site details, climate and energy analysis, sustainable systems proposals including a hybrid geothermal HVAC system, and perspective views of the building design. The student team from Savannah College of Art and Design submitted this proposal for the 2016 ASHRAE Student Design Competition.
Using Passive House to get to Net Zero Energywrfcdg
Early housing had no technology, while 20th century housing saw evolving technology and 21st century housing has organized technology. The document defines passive house standards for ultra-low energy buildings requiring little heating/cooling energy. Key benchmarks are space heating/cooling energy under 15 kWh/m2 per year, total primary energy under 120 kWh/m2 per year, and an air tightness of 0.6 air changes per hour. The passive house principles are an air tight building envelope, high efficiency windows and doors, super insulation, controlled ventilation with heat recovery, and thermal bridge free construction. The example passive house built met an air tightness of 0.37 air changes per hour, with a final HERS score
What will be discussed in this white paper presentation is simply our approach to the assessment of a single family residential home in Florida. We will describe the how and the why of our residential IAQ assessments, the basis for our opinions and the equipment used during our assessments.
Vapour Permeable Air Barriers: Real World Evaluation - What Works, What Doesn...Lorne Ricketts
As insulation and airtightness requirements increase, vapour permeable liquid and self-adhesive air barrier membrane products are rapidly gaining traction in the North American marketplace. This presentation looks at real world testing of various types of these membranes and identifies potential strengths and weakness of these types of products.
State of the Art Review of Unvented Sloped Wood-Framed Roofs in Cold ClimatesRDH Building Science
Typical residential house construction in North America has long had vented attics above living space with the insulation and air control layer at the ceiling plane of the living space. Except for documented wintertime condensation issues in cold climates, such vented attics generally perform quite well, provided that they are ventilated adequately and air leakage from the interior is prevented. However, architects and designers are moving away from empty attics by using the attic space as conditioned storage or bonus rooms, or by designing larger interior volumes with cathedral ceilings. The practical challenges of ventilating cathedralized attics and cathedral ceilings have been significant, both because of increased geometrical complexity and because of the number of penetrations typically required for services.
Spray foam has been used successfully in tens of thousands of unvented roof assemblies throughout North America but some concerns remain in the building industry that these assemblies are inferior to ventilated roof assemblies. The National Building Code of Canada, in particular, makes it difficult for designers to use unvented roof assemblies, even using designs that are approved in similar building codes in the United States and have been proven to be durable, high-performing options. Over the past decade, the authors have been directly involved with studies of both 0.5 pcf (8 kg/m3) open cell spray foam, and 2.0 pcf (32 kg/m3) closed cell spray foam in unvented roof assemblies in various climates with continuous monitoring of temperature and moisture conditions. This paper provides a literature review of research that has been conducted on wood-framed sloped unvented roof assemblies, but will focus on results from a field monitoring study of sloped unvented wood roofs in partnership with the University of Waterloo, as well as a field survey that opened roofs and removed samples from aged unvented roof assemblies.
Presented at the 15th Canadian Conference on Building Science and Technology.
This document discusses contamination control in semiconductor fabrication. It identifies five major classes of contaminants: particles, metallic ions, chemicals, bacteria, and airborne molecular contaminants. Contamination can reduce device yield, affect performance and reliability. Sources of contamination include air, the production facility, cleanroom personnel, process water, chemicals, gases and static charge. The document describes techniques for maintaining cleanliness, such as cleanrooms, air filtration, garment protocols and chemical purification. It also outlines requirements for wafer cleaning and differences between front-end-of-line and back-end-of-line processing.
“Library 2.0: Balancing the Risks and Benefits to Maximise the Dividends”bridgingworlds2008
The document discusses various challenges and barriers to the successful adoption of Library 2.0 and Web 2.0 technologies. It identifies issues such as sustainability of third-party services, data lock-in, lack of expertise, inappropriate content, and accessibility concerns. It proposes balanced approaches to address these barriers, including risk assessment and management, staff development, clarifying responsibilities, and embracing new media literacy.
This document provides construction details and specifications for a new passive house in Scranton, Pennsylvania. It includes floor plans, building elevations, wall sections, and outlines of the building enclosure systems. The 2-story house has over 1,700 square feet of living area and uses high-performance building techniques like triple-pane windows, dense-packed cellulose insulation, an energy-recovery ventilator and an air-tight building envelope to achieve a certified passive house standard with a projected annual heating demand of only 888 kBTU.
You roof is a system. It has many components that add to its success or failure. Your attic plays a big role and without proper ventilation it becomes a risk.
The document discusses various insulation strategies for walls and roofs. It provides advantages and disadvantages of interior insulation, exterior insulation, and split insulation for walls. For roofs, it discusses interior insulation and exterior insulation. It also discusses the importance of continuity in the building enclosure and limiting air and moisture infiltration. Several case studies demonstrate issues with exterior air infiltration and interior air and moisture infiltration. The document stresses the importance of addressing air and moisture infiltration before adding insulation. It also discusses the pencil test for building plans and sections, as well as the importance of compatible materials and details.
First Passive House Retrofit in a Cold Climate: The MinnePHit HouseTE Studio
This presentation was given by Tim Delhey Eian of TE Studio on Tuesday, September 23rd, at the 2014 NAPHN Passive House Conference in Portland, Maine. It showcases the first cold climate Passive House retrofit (EnerPHit) project which TE Studio designed, and the Passivhaus Institut in Darmstadt (Germany) certified as a pilot EnerPHit project.
This document provides details about the first certified Passive House Plus project in Minnesota. It is a single-family home located in St. Paul that prioritizes views, accessibility, health, sustainability and energy efficiency. The building envelope and materials are designed to meet Passive House standards with high insulation values, an air-tight envelope, and triple-pane windows. Diagrams and details are included to illustrate the construction methods for walls, roof, foundation, and windows.
The document summarizes the Nordeast Nest, a custom eco home built in Minneapolis, MN from 2012-2014 that incorporates passive house principles and components. It achieved a very low annual heating demand of 32 kWh/m2 through an extremely well insulated and airtight building envelope. Key elements included walls with R-values of R-51 and R-39, a cold roof with R-70 insulation, high performance windows and doors, and an extremely tight air barrier that achieved an airtightness of 0.36 ACH50. HVAC systems included an energy recovery ventilator, air source heat pumps for heating and cooling, and a tankless water heater to provide heating, cooling, ventilation
NH HPH Features and Benefits- 3 year Warrantee Guarantee davidjthomas
Neumann Homes provides high-performance, energy efficient homes that guarantee comfort and lower utility bills. Their Environments for Living program focuses on healthy indoor air quality through sealed HVAC ducts, fresh air intake, and tight building envelopes. Homes are certified through third-party testing to ensure proper installation of insulation, air sealing, and efficient mechanical systems. This includes a 3-year guarantee on heating and cooling costs and indoor comfort.
Ventilated attics are prone to moisture problems in the Coastal Pacific Northwest climate. This presentation discusses recent research investigating the causes of these issues, and presents cutting edge findings regarding potential solutions.
This community building in Huaibeizhuanjcun, Beijing, China has a total area of 3,727.1 square meters or 40,117.7 square feet. It is split into two halves, with one half embedded underground to provide classroom and lab spaces, while the other half above ground contains community service areas. The building utilizes earth berming and a geothermal heat pump connected to a pond for sustainable heating and cooling. It employs a hybrid HVAC system using the geothermal heat pump and fan coil units, along with fresh air intake ducts and filters to improve indoor air quality.
Current Issues with Ventilated Attics
Case Study of Repairs
Attic Roof Hut Research & Monitoring Study – Key Findings
Performance of Potential Solutions
Ongoing Research & Field Trials
SPF Insulation Build It Tight Ventilate It Right JPL 10-10-2015 2016 IAQA Ann...John P. Lapotaire, CIEC.
This presentation will be discussing the issues with the reduction of the necessary natural or passive ventilation in a home that is substantially reduced when SPF insulation is installed. The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) have had a residential ventilation standard since 2003, ASHRAE 62.2. So while a home’s recommended minimum ventilation rate remained unchanged for many years, ASHRAE has recognized the tighter construction of today’s homes and 10 years after the initial ASHRAE 62.2, there are new and controversial changes to the 2013 version of ASHRAE 62.2.
The document summarizes the top 10 defects found in new homes by home inspectors, including:
1) Foundation clearance issues allowing water intrusion.
2) Improper attic ventilation leading to moisture issues.
3) Improper gutter and downspout placement directing water to cause damage.
4) Structural issues from plumbing and HVAC installations cutting into structural components.
5) Electrical defects from improper panel sizing or light installations.
6) Safety issues from water heater installations or improper receptacle placements.
7) Construction errors from last minute changes or lack of coordination.
This document provides information for a student design project proposing a community building in Huaibeizhuanjcun, Beijing, China. It includes the design intent, program, location, site details, climate and energy analysis, sustainable systems proposals including a hybrid geothermal HVAC system, and perspective views of the building design. The student team from Savannah College of Art and Design submitted this proposal for the 2016 ASHRAE Student Design Competition.
Using Passive House to get to Net Zero Energywrfcdg
Early housing had no technology, while 20th century housing saw evolving technology and 21st century housing has organized technology. The document defines passive house standards for ultra-low energy buildings requiring little heating/cooling energy. Key benchmarks are space heating/cooling energy under 15 kWh/m2 per year, total primary energy under 120 kWh/m2 per year, and an air tightness of 0.6 air changes per hour. The passive house principles are an air tight building envelope, high efficiency windows and doors, super insulation, controlled ventilation with heat recovery, and thermal bridge free construction. The example passive house built met an air tightness of 0.37 air changes per hour, with a final HERS score
What will be discussed in this white paper presentation is simply our approach to the assessment of a single family residential home in Florida. We will describe the how and the why of our residential IAQ assessments, the basis for our opinions and the equipment used during our assessments.
Vapour Permeable Air Barriers: Real World Evaluation - What Works, What Doesn...Lorne Ricketts
As insulation and airtightness requirements increase, vapour permeable liquid and self-adhesive air barrier membrane products are rapidly gaining traction in the North American marketplace. This presentation looks at real world testing of various types of these membranes and identifies potential strengths and weakness of these types of products.
State of the Art Review of Unvented Sloped Wood-Framed Roofs in Cold ClimatesRDH Building Science
Typical residential house construction in North America has long had vented attics above living space with the insulation and air control layer at the ceiling plane of the living space. Except for documented wintertime condensation issues in cold climates, such vented attics generally perform quite well, provided that they are ventilated adequately and air leakage from the interior is prevented. However, architects and designers are moving away from empty attics by using the attic space as conditioned storage or bonus rooms, or by designing larger interior volumes with cathedral ceilings. The practical challenges of ventilating cathedralized attics and cathedral ceilings have been significant, both because of increased geometrical complexity and because of the number of penetrations typically required for services.
Spray foam has been used successfully in tens of thousands of unvented roof assemblies throughout North America but some concerns remain in the building industry that these assemblies are inferior to ventilated roof assemblies. The National Building Code of Canada, in particular, makes it difficult for designers to use unvented roof assemblies, even using designs that are approved in similar building codes in the United States and have been proven to be durable, high-performing options. Over the past decade, the authors have been directly involved with studies of both 0.5 pcf (8 kg/m3) open cell spray foam, and 2.0 pcf (32 kg/m3) closed cell spray foam in unvented roof assemblies in various climates with continuous monitoring of temperature and moisture conditions. This paper provides a literature review of research that has been conducted on wood-framed sloped unvented roof assemblies, but will focus on results from a field monitoring study of sloped unvented wood roofs in partnership with the University of Waterloo, as well as a field survey that opened roofs and removed samples from aged unvented roof assemblies.
Presented at the 15th Canadian Conference on Building Science and Technology.
This document discusses contamination control in semiconductor fabrication. It identifies five major classes of contaminants: particles, metallic ions, chemicals, bacteria, and airborne molecular contaminants. Contamination can reduce device yield, affect performance and reliability. Sources of contamination include air, the production facility, cleanroom personnel, process water, chemicals, gases and static charge. The document describes techniques for maintaining cleanliness, such as cleanrooms, air filtration, garment protocols and chemical purification. It also outlines requirements for wafer cleaning and differences between front-end-of-line and back-end-of-line processing.
“Library 2.0: Balancing the Risks and Benefits to Maximise the Dividends”bridgingworlds2008
The document discusses various challenges and barriers to the successful adoption of Library 2.0 and Web 2.0 technologies. It identifies issues such as sustainability of third-party services, data lock-in, lack of expertise, inappropriate content, and accessibility concerns. It proposes balanced approaches to address these barriers, including risk assessment and management, staff development, clarifying responsibilities, and embracing new media literacy.
A BMS consultant document discusses inputs and outputs for building management systems. It describes various sensors like temperature, humidity, pressure, and flow sensors that provide inputs. It also discusses output devices like control valves, VFD speed commands, and damper actuators. The document provides details on common sensor types, proper installation of sensors, and BMS protocols.
Complete hvac ppt by kk 354647.pptx 1234KRISHAN KUMAR
This document provides an overview of heating, ventilation, and air conditioning (HVAC) systems. It discusses the history and development of HVAC, including early innovations in refrigeration. The core components and functions of HVAC systems are described, such as furnaces, ducts, air conditioners, and heat pumps. Various types of HVAC installations and systems are covered, like central air, zoned heating, and radiant heat. Recent developments in HVAC technology and applications are also summarized along with the advantages and disadvantages of HVAC.
This document provides an overview of HVAC (heating, ventilation, and air conditioning) systems. It defines HVAC as the control of air temperature, moisture content, and proper air movement to maintain acceptable air quality. It then describes common HVAC applications in buildings and industries. The document outlines the basic components and operating cycle of air conditioning systems. It also discusses factors to consider when selecting and designing HVAC systems, such as cooling load calculations, equipment types, ducting, and air distribution. Finally, it covers recent trends toward more energy efficient HVAC equipment and controls.
This document provides an overview of basic air conditioning concepts and typical all-air HVAC systems. It describes the major components, including coils, fans, dampers, and control systems. Typical AC units discussed are rooftop packages, split systems, chilled water air handlers, and VAV systems. The document also outlines equipment types, control types, and provides some basic rules of thumb for HVAC design and operation.
This document provides an introduction to HVAC systems. It discusses the primary functions of HVAC systems to provide healthy and comfortable interior conditions while minimizing energy usage and emissions. It describes different types of HVAC systems including air systems, hydronic/steam systems, and unitary systems. It also discusses key HVAC components like air handling units, fans, pumps, ductwork, controls and their purposes.
Minimum ventilation is used to supply fresh air to birds while maintaining indoor temperature. It is used when the temperature is below the birds' set point. Good house sealing is important for effective minimum ventilation and bird welfare. A minimum ventilation system uses cross ventilation with fans and inlets to mix cold incoming air with warm indoor air and distribute it evenly. The ventilation rate must be evaluated daily to ensure the correct balance between under and over ventilation.
- Fitting a kitchen requires skills in carpentry, plumbing, electrical work, and tiling, and is best suited to an advanced DIYer.
- Safety is important when fitting a kitchen - check for electrical wires and pipes before drilling, use power tools with RCD protection, and wear safety gear.
- Proper planning is essential, including measuring the space, marking locations of fixtures, and designing an efficient layout with work triangles between the sink, stove and fridge.
Our Home Energy Coach, Philip Drader, shares how home energy efficiency can contribute to a comfortable home and saving money by reducing wasted energy.
When you help a toddler get dressed, you don’t put the snowsuit on after the boots. And when doing energy efficiency renovations, it helps to know what the best order to do work in.
Avoid common pitfalls and manage your renovation like a pro. From attic to basement, figure out the scope of work before you even begin.
Ray Foerster - Calling All Fans of Good VentilationJohn Blue
1. The document discusses power inlet management at weaning facilities to control humidity levels for newly weaned pigs. It focuses on using inlets to bring in cool, dense air and heat it to increase moisture carrying capacity before exhausting it outside.
2. It emphasizes measuring static pressure, air speed, and CFM at inlets to identify any unintended openings and ensure proper airflow. Inlets need to be adjusted to provide high-speed, uniform mixing of incoming air.
3. The document recommends maximizing inlet openings prior to moving side curtains to reduce temperature fluctuations and provide 45 CFM/head as industry standard. Installers need guidance to properly set inlet openings.
This is the comprehensive powerpoint for having a Properly Sized, Designed, Installed, and Commissioned Heating, Ventilation and Air Conditioning System.
The document provides an overview of various home maintenance topics and inspection points for homes, wells, septic systems, and more. It discusses the importance of maintenance, common issues found with roofs, chimneys, decks, stairs, drainage, foundations, plumbing, electric, heating/AC, wells, and septic systems. Tips are provided on specific areas to inspect and maintain for each component.
Mr. Bernard Green Speaker at Knowledge Day 2015Poultry India
The document discusses the benefits of closed environment (CE) housing for poultry compared to open housing. CE housing allows for greater control over ventilation including air entry points, speed, and direction of airflow. This control enables maintaining optimal temperatures and air quality for birds. CE housing can achieve higher stocking densities and production. It also helps control costs by precisely managing minimum ventilation, transitional ventilation, and hot weather ventilation using fans and inlets. However, CE housing requires an airtight, well-insulated structure and properly designed ventilation system to realize its full benefits.
A blower door test was performed on April 11th, 2014 at 162 Pine Street in Kingston for client Brenda Slomka. The test revealed an equivalent air leakage of 205 in^2 and an air changes per hour at 50 Pascals of 6.75, indicating a moderately leaky home. The largest source of air leakage was found to be around a heating duct penetration in the basement wall leading to a crawlspace. Properly sealing this penetration and insulating the crawlspace from the basement is recommended to significantly reduce air leakage and heat loss from the home.
FOR SALE: 106 Carolina Ave, Chapel Hill, NC 27514Paula Carr
Fully Renovated 2 story brick home in the heart of Chapel Hill. Beautiful treed lot that sits a top the hill behind Franklin Street. Clean and contemporary new design.
PRESENTED BY: Kennedy Contracting Services, Atomic Properties and Center Studio Architecture
www/atomic-properties.com
Nationl Property Inspections radon power pointJared Jackson
This is a radon information power point. Learn more about radon, testing methods, and mitigation. Radon testing should be an important part of any real estate transaction.
The document discusses the benefits of installing a heated ducted split system for home heating. It recommends installing such a system when initially building a house as it will save money compared to a later installation. A heated ducted split system provides central heating through drawing air from the environment and distributing it pollution-free through ducts. It also provides contact information for NorthWest Heating & Cooling Geelong which provides these systems.
The document summarizes the design and construction of Villa Velanidi, a Passivhaus home in Corfu, Greece built in 2015. The goals were to simplify mechanical systems, focus on Passivhaus principles, and use natural materials, while creating a beautiful family home and vacation rental. Key aspects discussed include the insulation and air-tightness strategies, mechanical ventilation system using an air-to-ground pipe, inclusion of thermal mass, glazing and shading design, and heating/cooling systems. Performance results showed a total energy demand of 18 kWh/m2 for heating and cooling, with temperature fluctuations well controlled throughout the house.
This document summarizes a DIY project to use recycled pop cans and passive solar heating to warm a cold bedroom. Key points:
- The bedroom gets too cold in the daytime due to its distance from the central furnace.
- A solar collector chimney system was designed using pop cans as the absorber surface and independent chimneys to transfer heat into the room.
- Two iterations were tested - the first with bottom-vented cans did not have enough airflow, while cutting out the bottoms improved airflow and heat transfer.
- Initial tests showed a 40 degree rise in temperature within the chimneys and some warming of the room.
The scope of work involves renovating a 1,140 square foot home built in 1955 in Houston, TX to make it market ready. Major renovations include repairing the roof and foundation, adding central air and heating, renovating the kitchen by installing new cabinets and countertops, and updating the bathrooms. Interior repairs such as drywall repair, new flooring and lighting fixtures are planned. The exterior will be painted, new siding and doors installed, and the backyard fencing and landscaping updated.
This document discusses the importance of airtight construction according to the 2009 International Residential Code. It provides many examples of how to properly construct and air seal a home to eliminate air leakage, including sealing electrical boxes, windows, top plates, band joists, attic hatches, recessed lights, and more. Without a comprehensive air sealing approach that addresses all potential leakage points, insulation will not perform as intended and air quality, moisture, and comfort issues may arise.
Whitepaper: Home Maintenance Tips for First Time HomebuyersInspect-It 1st
This whitepaper provides home maintenance tips for first-time homebuyers, including maintaining the garage door, clothes washer/dryer, water heater, HVAC system, sinks/tubs, toilets, doors, and windows. Key tips include lubricating garage door parts twice per year, replacing plastic dryer vent hoses, draining water heaters annually, cleaning HVAC vents and installing mid-level filters, using hot water and coat hangers to clean sinks/tubs, and lubricating moving door and window parts. Routine maintenance is recommended to decrease repair costs and maximize home value.
This whitepaper provides home maintenance tips for first-time homebuyers, including maintaining the garage door, clothes washer/dryer, water heater, HVAC system, sinks/tubs, toilets, doors, and windows. Key tips include lubricating garage door parts twice per year, replacing plastic dryer vent hoses, draining water heaters annually, cleaning HVAC vents and installing mid-level filters, using hot water and coat hangers to clean sinks/tubs, and lubricating moving door and window parts. Routine maintenance is recommended to decrease repair costs and maximize home value.
This document provides information on measuring and identifying existing cabinets, different types of cabinets, cabinet components, and considerations for upgrading cabinets and other aspects of a kitchen remodel. Key points include identifying cabinet box construction, measuring cabinet sizes, noting special cabinetry, and gathering information to ensure an accurate replacement estimate. Upgrade options like new countertops, lighting, and appliances are discussed along with coordinating work with tradespeople.
This document provides information on measuring and identifying different types of cabinets. It discusses measuring box sizes, heights, depths and special cabinetry. Pictures from multiple angles are recommended. The document also covers stick built vs box cabinets, and identifying cabinet materials and grades. Key components, upgrades and special considerations for cabinet installation are outlined.
The document summarizes renovations and repairs made to a property on Sunset Street. Updates were made to the exterior of the home including the front and backyards. Interior renovations included refinishing hardwood floors, installing new flooring, painting, replacing fixtures and appliances, and renovating all rooms in the home including two kitchens, multiple bathrooms, bedrooms, and living areas.
Similar to Step 5 Pressure Balancing of The Seven Steps of Building a Synergy Home (20)
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
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it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
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Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
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This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
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This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
8. What happens if you do not have proper
return pathways and you close your
bedroom doors?
• Air that is supplied to the bedroom cannot be
returned to the air handler to be reconditioned.
• The bedroom becomes pressurized and air is forced
out of the room through holes in the envelope.
• The main body of the home becomes depressurized
and outside air is pulled in from unintended places.
• There are temperature differences throughout the
home.
• Undercutting doors does not work.
•8
9. Installing jumper ducts keeps the
homeowner from having to change
multiple filters. It also eliminates
the need to balance the return
ductwork.
•9
10. Symptoms of pressure issues
• Interior doors close when your unit starts up.
• You smell your fireplace when your heating
system starts up.
• Temperature differences occur throughout the
home. For example, in an effort to become
comfortable in your Master bedroom, you adjust
the thermostat so that the rest of the home is
uncomfortable.
• There are markings or stains under and around
interior door frames.
• Your home is dusty.
• Your home has odors.
•10
12. Adding jumper ducts in the
bedrooms of an existing home
along with increasing the existing
return duct size is a simple fix for
many homes!
•12
13. The net difference in the supply
side leakage and the return side
leakage causes increased air
infiltration in the home. Moving
ducts into the conditioned space
helps eliminate this.
•13
14. We use a manometer to confirm that
there is 3 Pascal or less pressure
differential between a bedroom and
the main body of the home.
•14
15. Important Tips For Pressure
Balancing
• Build the house as tight as possible to the
exterior.
• Add fresh air ventilation.
• Properly Size, Design, Install, and Commission
your HVAC System.
• Bring the ducts into the conditioning space.
• Install returns, transfer grilles, or jumper ducts
in every bedroom.
• Test and confirm every step! •15
Editor's Notes
The tighter the home… the easier it is to pressurize or depressurize the home
We typically use jumper ducts to eliminate noise and the need of changing mulitple filters.
What does a pressure test between the main body of the home and the attic and the main body of the home and the crawlspace
Make sure that homes with multiple returns are properly balanced