Moisture Control in Museums
|
|
- Leslie Griffin
- 7 years ago
- Views:
Transcription
1 Moisture Control in Museums Presented by Boggarm S. Setty, P.E. Setty & Associates, Ltd. ASHRAE Winter Meeting, New York, January 2008
2 Case in Point Hirshhorn Museum,Washington, DC
3 Issues Issues relate to Excessive Humidity in Existing Areas Moisture Condensation In Areas such as Floors and Walls Moisture Condensation behind Exhibits Existing HVAC Systems Do not maintain necessary temperature and humidity conditions HSMG s Study determined Solutions to Humidity Issues
4 Thermography Initiated Thermography of Areas where Condensation is occurring Thermal Images: Interior Surface Temperatures of Exterior Walls Areas of Thermography
5 Thermography Each color shade = Different Temperature
6 Thermography Interior Surface Temp of Exterior Walls Color Temperature Bars: Yellow-Orange-Red = Warm Temperatures Green-Blue-Dark Blue = Cold Temperatures
7 Study Issues Determine Existing Envelope Conditions to prevent condensation with insulation options. Monitor Exterior Wall Dewpoint and Temperature Profiles during winter months. Determine Building Pressure Characteristics when system is in operation. Determine HVAC Control System operation. Recommend proper Envelope Modification, HVAC Improvements and Recommissioning to Prevent Condensation.
8 Envelope Characteristics Round Envelope: 24-inch thick concrete No Insulation Exterior: Rough Finished Interior Drywall or Plaster Finish Concrete Structure: TOP CEILING CONT. METAL RUNNER SECURE TO CONCRETE DECK ABOVE 1 LAYER OF 5/8" GYP. EACH SIDE PLAN 3 5/8" METAL STUDS 20 16" O.C. VINYL BASE, SEE SCHEDULE BASE FINISH FLOOR
9 Existing HVAC System Distribution Exhibit Levels 2 and 3 are served by 4 Air Handling Units Each unit has a Cooling Coil, Steam Humidifier Branch Duct has Steam Reheat Coils Humidity Sensors on Return Air Grilles on Each Floor Galleries are supplied with Sidewall Registers Design requires Mixing of Gallery Air DDC Computer calculates the Return Air Dewpoint and makes changes to Supply Air Dewpoint Dewpoint reset as necessary Existing HVAC Control Systems
10 Existing HVAC Control System AHU 2 New Control Diagram
11 Typical Gallery Air Distribution
12 Evaluation of Existing Conditions Building has High Humidity Levels with occasional Condensation on Cold Walls More Condensation behind Exhibits More Condensation on Second Floor Possible Pressure pushing High Humidity Air, which will condense in the Walls
13 Temperature and Dewpoint Calculations Condensation occurred when Outside Temperature was Low, Approximately 150F To facilitate Multiple Wall Conditions, Therm Program was utilized for Dewpoint Calculations Graph indicates Temperature Profile at Various Points of the Wall
14 Envelope Characteristics
15 Condensation Calculations Therm program used to calculate temperature profiles for existing and hypothetical modified walls. Plaster Surface Temperature: 65 F Concrete Wall Temperature: 53 F Outside Temperature: 15 F Condensation can occur with these temperature profiles
16 Field Measurements Data collection within the wall cavity to support the calculated temperature profile. Three battery-powered data loggers for temperature and humidity recording placed between the plaster and the reinforced concrete wall. Fourth recorder was placed in the outdoor intake plenum. Conditions: Outside air temperature: 25 F Concrete surface temperature: 50 F Condensation may occur at these temperatures.
17 Temperature and Humidity Profile Hourly Constant Temperature 50% to 60% Relative Humidity Reflects Changes in Humidity Ratio 3rd Floor, AHU 5 - January 1 through 31, Degrees F or % RH Temperature Relative Humidity
18 Temperature Measurements Instruments used: Infrared Mini-thermostat Electronic Digitized Temp/Humidity Instrument Measurements Conducted for AHU# 5, 6 and 7 Temperature Measurements Nearly Constant Temperature 50% to 60% Relative Humidity Fluctuations in Relative Humidity Observed for all AHU s
19 Return Air Dewpoint - 3rd Floor, AHU 5 - January 1 through 31, Degrees F
20 Data shows High Dewpoint Levels Increase in Condensation Control System tries to maintain Dewpoint Return Air Dewpoint - 3rd Floor, AHU 7 - January 1 through Degrees F
21 Return Air Dewpoint - 2nd Floor, AHU 7 - January 1 through Degrees F
22 Return Air Dewpoint - 4th Floor, AHU 6 - January 1 through Degrees F »
23 Return Air Dewpoint - 3rd Floor, AHU 2 - January 1 through 31, Degrees F
24 Return Air Dewpoint - 4th Floor, AHU 5 - January 1 through Degree F
25 Constant Dewpoint for Summer Reset during Winter Conditions Return Air Dewpoint - 3rd Floor, AHU 5 - January 1 through 31, Degrees F
26 Pressurization Over-pressurization pushes Air into the Wall, causing Condensation Maintaining Positive Pressure at Building Wall does not guarantee Condensation Prevention Normal Practice Recommended to Maintain Slight Positive Pressure, approximately 2 Pascal Neutral Pressure prevents Exfiltration of Air during low Outside Air Temperatures
27 Insulation Options Option 1: 2-inch Foam Insulation Temperature Profile for Interior Polyurethane Insulation
28 Option 2: Spray Cementitous Insulation on Wall Temperature Profile for Interior Cementitious Insulation
29 Option 3: External Foam Insulation Temperature Profile for External Foam Insulation
30 Option 4: External Polystyrene Insulation Temperature Profile for External Polystyrene Insulation
31 Conclusions Condensation of interior air against colder surface of the primary wall. By design, outer perimeter wall is farthest from the air diffusers and receives less warm air. Controling dewpoint is not feasible. Accuracy of sensor performance is improper. High humidity levels allow condensation on cold walls, especially behind exhibits. Wall insulation was not possible due to prohibitive cost. Resolved by lowering the dewpoint and maintaining it constant.
32 Design Recommendations Revise Dewpoint Reset Maintain Constant Dewpoint Summer Maximum And Winter Reset 45% R.H.(±8%) And 700F (±40F) Seal Walls And Use Vapor Resistant Materials Manage Building Pressure Review Control Sensor Pressure Review Control Sensor Locations Commission Entire Control System Operation
33 Design Recommendations Building New Pressurization Diagram
34 Commissioning / Building Pressure Control Maintain Slightly Positive Pressure -- 2 Pascals Variable Frequency Drives on all AHU s and Return Air Fans Run AHU s at half-speed during unoccupied hours Connect all the Existing Fans to the DDC System Constant Dewpoint Temperature during Summer and Reset during Winter
35 Questions and Answers
*Trademark of The Dow Chemical Company A business unit of The Dow Chemical Company and its subsidiaries Copyright 2003 The Dow Chemical Company.
Dow Chemical is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members.
More informationUNIVERSITY OF MISSOURI 23 0000 - Heating Ventilating and Air-Conditioning (HVAC) March 2015.01
GENERAL: This section provides general standards for overall sizing and design of Heating, Ventilating, and Air Conditioning (HVAC) systems. Other sections contain specific standards for each system per
More informationAnswers to Your Questions from the Webinar
2008 Desert Aire and USA Swimming. Used by permission. Desert Aire & USA Swimming - Aquatics Webinar - Answers to Your Questions Answers to Your Questions from the Webinar Thank you for your interest in
More informationMolds and mildew are fungi that grow
Appendix C: Moisture, Mold and Mildew Molds and mildew are fungi that grow on the surfaces of objects, within pores, and in deteriorated materials. They can cause discoloration and odor problems, deteriorate
More informationVenice Library Humidity Study. for Williams Building Diagnostics, LLC 305 15 th Street West Bradenton, FL 34205. Report April 13, 2015
for Williams Building Diagnostics, LLC 305 15 th Street West Bradenton, FL 34205 Report April 13, 2015 Moses & Associates, Inc. 2209 NW 40 th Terrace, Suite A Gainesville, FL 32605 FL License EB-0003097
More informationHVAC Calculations and Duct Sizing
PDH Course M199 HVAC Calculations and Duct Sizing Gary D. Beckfeld, M.S.E., P.E. 2007 PDH Center 2410 Dakota Lakes Drive Herndon, VA 20171-2995 Phone: 703-478-6833 Fax: 703-481-9535 www.pdhcenter.com An
More informationField Performance of Different Interior Basement Insulation Systems
Field Performance of Different Interior Basement Insulation Systems Marc Zuluaga Robb Aldrich Dianne Griffiths, P.E. Associate Member ASHRAE ABSTRACT With the support of the Department of Energy s Building
More informationSTAYFLEX CORROSION CONTROL AND THERMAL INSULATION SYSTEM
STAYFLEX CORROSION CONTROL AND THERMAL INSULATION SYSTEM Installed in Pre-engineered Steel Buildings Provides Lowest Cost Construction Method for CORROSIVE AND WET Environments PREFERRED SOLUTIONS, INC.
More informationNatatorium Building Enclosure Deterioration Due to Moisture Migration
Buildings 2012, 2, 534-541; doi:10.3390/buildings2040534 OPEN ACCESS buildings ISSN 2075-5309 www.mdpi.com/journal/buildings/ Case Study Natatorium Building Enclosure Deterioration Due to Moisture Migration
More informationFoundation. Foundation
Moisture Aside from structural concerns, the most important consideration for foundation design is moisture. No client wants a wet basement. No client wants a damp basement. No client wants mold in their
More informationHVAC Checklist - Long Form
HVAC Checklist - Long Form Page 1 of 14 Appendix B discusses HVAC system components in relation to indoor air quality. utside Air Intake Location pen during occupied hours? Unobstructed? Standing water,
More informationElement D Services Heating, Ventilating, and Air Conditioning
PART 1 - GENERAL 1.01 OVERVIEW A. This section supplements Design Guideline Element D3041 on air handling distribution with specific criteria for projects involving design of a Data Center spaces B. Refer
More informationBEST 2 WB 3 4 SIX WAYS FOR CONDENSATION IN BUILDINGS. Wagdy Anis, FAIA, LEED ap*
BEST 2 WB 3 4 SIX WAYS FOR CONDENSATION IN BUILDINGS Wagdy Anis, FAIA, LEED ap* Abstract: Six of the ways condensation can occur on cold surfaces in buildings are discussed here. They are: 1. Air Leakage,
More informationHOSPITAL ISOLATION ROOM HVAC SYSTEM DESIGN
HOSPITAL ISOLATION ROOM HVAC SYSTEM DESIGN Presented to: ASHRAE YEA Illinois Chapter Specialty Environment Design Conference March 24, 2014 Jean O. Gibbons, PE, LEED AP Senior Vice President Grumman/Butkus
More informationCauses of High Relative Humidity Inside Air Conditioned Buildings. Roger G.Morse AIA, Paul Haas CSP, CIH Morse Zehnter Associates
Causes of High Relative Humidity Inside Air Conditioned Buildings Roger G.Morse AIA, Paul Haas CSP, CIH Morse Zehnter Associates S. FLORIDA AVE. AMBIENT 91 F db / 78 F wb 16,000 HOURS ANNUALLY THAT wb
More information1/9/2013. Terminology Calculating Heat Transfer Code Requirements Design Examples and Sustainability
1/9/13 By Brett T. Fagan, P.E. Presented by Marie Horan, P.E. Building Diagnostics, Inc. Building Diagnostics Terminology Calculating Heat Transfer Code Requirements Design Examples and Sustainability
More informationSustainable Preservation Practices for Managing Storage Environments Webinar: April 3, 2013
The Fundamentals of HVAC: What Shapes the Storage Environment Sustainable Preservation Practices for Managing Storage Environments Webinar: April 3, 2013 Introduction Presenter Jeremy Linden, Preservation
More informationComparing Energy Savings of Different VAV Systems
Comparing Energy Savings of Different VAV Systems Prepared By: Martyn Dodd mart@energysoft.com EnergySoft LLC 1025 5th Street, Suite A Novato, CA 94945 415-897-6400 www.energysoft.com Last Modified: March
More informationHVAC Characteristics. Test Space HVAC Characteristics
HVAC Characteristics Information on the characteristics of the heating, ventilation, and air conditioning (HVAC) system(s) in the entire BASE building including types of ventilation, equipment configurations,
More informationMore Bang for Your Buck: Combining Thermal, Air and Water Barrier
More Bang for Your Buck: Combining Thermal, Air and Water Barrier Linda Jeng, Dow Building Solutions 2014 RESNET Atlanta, Jan. 29, 2014 Actual high: 30 F Actual low: 12 F Effect of polar vortex on Atlanta,
More informationCONDENSATION. Section Break (Next Page)
CONDENSATION Elimination of condensation on or within walls and floors is as important as reducing the heat loss through the wall or floor. In addition to the moisture damage caused to buildings by condensation,
More informationMoisture Control. It s The Dew Point. Stupid! Its not the humidity.
Moisture Control Its not the humidity. It s The Dew Point Stupid! Mike Schell EpiphanyTec Inc. Santa Barbara, CA mschell@epiphanytec.com 805 687-3175 Matching great technology to market need! Topics SHR
More informationInnovent LASER Packaged Fresh Air Conditioning Units
LASER Latent And Sensible Energy Reduction Latent And Sensible Energy Reduction For Outside Air Innovent LASER Packaged Fresh Air Conditioning Units Innovent LASER units provide both sensible and latent
More informationENHANCED LABORATORY HVAC SYSTEM
ENHANCED LABORATORY HVAC SYSTEM INTRODUCTION Since the early 1980's the attention to more energy efficient laboratory designs has been on the rise due to the increase in energy cost and the emergence of
More informationUnderwriters Laboratories Testing Information
Underwriters Laboratories Testing Information R-8078 Underwriters Laboratories Inc. R-13173 Classified Spray Fiber Surface burning characteristics applied to inorganic reinforced cement board with a maximum
More informationCONDENSATION IN REFRIDGERATED BUILDINGS
CONDENSATION IN REFRIDGERATED BUILDINGS By: Steve Salisbury Nov. 10, 2010 (revised Nov. 14, 2013) Introduction The following discussion reviews the basic causes of condensation in refrigerated buildings
More informationBUILDING ASSESSMENT QUESTIONNAIRE. B. TENANTS Is there more than one tenant in the building? YES
Department of Health and Human Services, Division of Public Health Occupational and Environmental Epidemiology Branch 1912 Mail Service Center, Raleigh, North Carolina 27699-1912 BUILDING ASSESSMENT QUESTIONNAIRE
More informationCrawl space heat and moisture behaviour
Crawl space heat and moisture behaviour Miimu Airaksinen, Dr., Technical Research Centre of Finland, VTT miimu.airaksinen@vtt.fi, www.vtt.fi KEYWORDS: crawl space, moisture, evaporation from ground, ground
More informationResidential Duct Systems for New and Retrofit Homes
Residential Duct Systems for New and Retrofit Homes Why it is important to properly design and install high quality, efficient ducted air systems? The efficiency of air distribution systems has been found
More informationPool Dehumidification Basics
Copyright 2009 Wescor. All rights reserved. Permission granted to reproduce for personal and educational use only. When energy costs were low, many pool owners considered only first cost when choosing
More informationkeep moisture in check by getting fairly hot and facilitating downward time the sun came out, Then, after installation roof no longer got very
Cool Roofs Cause Condensation Fact or Fiction? by Phil Dregger, PE, RRC, Technical Roof Services, Inc. (Editor s Note: Phil Dregger is a professional engineer, registered roof consultant, author, and fellow
More informationFOUNDATION INSULATING SYSTEM, INCLUDING WATERPROOFING AND DAMP PROOFING
FOUNDATION INSULATING SYSTEM, INCLUDING WATERPROOFING AND DAMP PROOFING insulation installed on foundation walls must be separated from the building interior with a code approved thermal barrier. Foam
More informationCenter for Energy Education Laboratory
Paper ID #7072 Center for Energy Education Laboratory Dr. Robert Gilbert, Sinclair Community College Robert B. Gilbert, Ph.D., LEED AP, BA, is an Associate Professor of Energy Management Technology, and
More informationAPPLICANT: ORANGE COUNTY, NEW YORK
Figure 1 Div 1 3 rd Flr Leakage in County Executives Office Figure 2 Div 1 3 rd Flr Location 067 approximately 2 SF of visible mold growth above entrance to Room 341 Figure 3 Div 1 3 rd Flr Location 067
More informationWater Damage & Repair
Water Damage & Repair Chinatown Preservation Talks 2015 James Engler, P.A Glenn Mason, AIA Mason Architects Program Outline Terminology & Waterproofing Basics Discussion of why this is important Below
More informationREAL OPERATING COST SAVINGS FROM RETRO- COMMISSIONING OPPORTUNITIES FOR SAVINGS IN ACADEMIC MEDICAL CENTERS
REAL OPERATING COST SAVINGS FROM RETRO- COMMISSIONING OPPORTUNITIES FOR SAVINGS IN ACADEMIC MEDICAL CENTERS Ken L. Hansen P.E. University of Nebraska Medical Center hansenkl@unmc.edu 402-559- 5301 402-630-
More informationResidential HVAC Load Sizing Training October 14, 2015. David Kaiser Green Code Plan Reviewer
Residential HVAC Load Sizing Training October 14, 2015 David Kaiser Green Code Plan Reviewer DCRA - Green Building Division Regulations of green codes including: Green Building Act Green Construction Code
More information2014 British Columbia Building Code Changes
District of Houston 250-845-2238 2014 British Columbia Building Code Changes A District of Houston interpretation of the 2014 Building Code Changes for 9.36 & 9.32 The following changes reflect the most
More informationMULTIZONE APPLICATION OF SOLUTION UNITS
MULTIZONE APPLICATION OF SOLUTION UNITS APPLICATION GUIDE Supersedes: 102.20-AG12 (206) Form: 102.20-AG12 (307) GENERAL Multi-zone heating and air conditioning units offer design and application advantages
More informationBest Practices for Crawl Space Insulation
Best Practices for Crawl Space Insulation Copyright 2011 Basement Systems Inc. All Rights Reserved Table of Contents I - Introduction II - Step By Step Guide 1 - Providing Adequate Drainage 2 - Controling
More informationHousing Fact Sheets. Moisture Condensation at the Windows
Moisture Condensation at the Windows Housing Fact Sheets This fact sheet discusses the causes of and remedies for wintertime condensation problems that occur on windows, glass, and other glazing materials
More informationECHO System for Basements
ECHO System for Basements Homeowners looking for more space are all too familiar with the cold, damp and dingy basement. Now, the Enclosure Conditioned Housing (ECHO) System TM, winner of the Ottawa-Carleton
More informationHome inspectors are not mold inspectors, however they do inspect for defects that
CONDENSATION IN THE WALLS Home inspectors are not mold inspectors, however they do inspect for defects that can result in mold. Mold grows in wet or damp environments. Defects that result in a wet or damp
More informationROOFS, SNOW AND ICE DAMS
ROOFS, SNOW AND ICE DAMS The Problem Ice dams are a common roof performance problem in cold climate buildings. Simply put, they are ridges of ice and icicles caused by melt water from further up the roof
More information) and air spaces (R a
5.3.3 Thermal Resistance (R-value) Common thermal properties of materials and air spaces are based on steady state tests, which measure the heat that passes from the warm side to the cool side of the test
More informationPresented by: Jennifer Doyle, P.E., RRC, LEED AP
Presented by: Jennifer Doyle, P.E., RRC, LEED AP Moisture Gas: Molecules are spread out "Vapor" suspended in air forms a mixture, present everywhere Liquid: Molecules are closer Rain Condensation Pipes
More informationPreventing Ice Dams on Roofs
Preventing Ice Dams on Roofs Facility Manager November/December 2005 When a roof leaks, facility managers inevitably receive complaints from building occupants. If it is winter, ice dams are often the
More informationChallenges and Failures in Green Building Design Using Under-Floor Air Distribution. Ken Urbanek, PE, HBDP, LEED AP Director of Engineering
Challenges and Failures in Green Building Design Using Under-Floor Air Distribution Ken Urbanek, PE, HBDP, LEED AP Director of Engineering Agenda UFAD Overview Challenges / Failures Steps for a Successful
More informationGlossary of HVAC Terms
Glossary of HVAC Terms Heating, Ventilation and Air Conditioning (HVAC) is a major sub- discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other
More informationHVAC INSTALLATION. Success with 2015 IECC Northeast & Mid-Atlantic. Checklist for Builders & Trades
Success with 2015 IECC Northeast & Mid-Atlantic Checklist for Builders & Trades COPYRIGHT 2015 ADVANCED ENERGY. ALL RIGHTS RESERVED TEMPLATE 2015.1.0 PAGE 1 CHECKLIST: JOB READY 1. 2. 3. 4. 5. 6. 7. 8.
More informationHVAC INSTALLATION SUCCESS WITH 2012 IECC DELAWARE. for Builders & Trades. Recommended Practices for Optimized Energy Savings
SUCCESS WITH 2012 IECC DELAWARE Recommended Practices for Optimized Energy Savings for Builders & Trades COPYRIGHT 2015 ADVANCED ENERGY. ALL RIGHTS RESERVED VERSION 2015.1.0 CHECKLIST: JOB READY 1. 2.
More informationHeating Load Calculation
Heating Load Calculation ME 425 Air Conditioning System Design Keith E. Elder, P.E. Heating Load Calculation The heating load calculation begins with the determination of heat loss through a variety of
More informationThermal Imaging for Home Inspectors
Thermal Imaging for Home Inspectors Structural member placement The gabled end of a cathedral ceiling. Note the studs and the ceiling joists with blocking. What is that glow in the upper right hand corner?
More informationCase Study: Innovative Energy Efficiency Approaches in NOAA s Environmental Security Computing Center in Fairmont, West Virginia
Case Study: Innovative Energy Efficiency Approaches in NOAA s Environmental Security Computing Center in Fairmont, West Virginia Prepared for the U.S. Department of Energy s Federal Energy Management Program
More informationANSI/ASHRAE Standard 140-2004 Building Thermal Envelope and Fabric Load Tests
ANSI/ASHRAE Standard 140-2004 Building Thermal Envelope and Fabric Load Tests DesignBuilder Version 1.2.0 (incorporating EnergyPlus version 1.3.0) - June 2006 1.0 Purpose The ANSI/ASHRAE Standard 140-2004
More informationArticle. Protecting the Building Envelope from Water Damage. MemBrain Smart Vapor Retarder & Air Barrier Film
Article Protecting the Building Envelope from Water Damage Vapor Retarders Play a Crucial Role in Moisture Management Whether we like it or not, moisture in the form of water vapor diffusion and humid
More informationInfrared Moisture Detection
What it can do for you... what it can t and why 1. Infrared camera basics 2. Examples Lew Harriman MoistureDM.com 3. Summary - The 4 most important facts about infrared moisture detection 1 of 19 Infrared
More informationSECTION 11 78 13 MORTUARY REFRIGERATORS
PART 1 - GENERAL 1.1 DESCRIPTION SECTION 11 78 13 MORTUARY REFRIGERATORS SPEC WRITER NOTE: Delete between //---// if not applicable to project. Also delete any other item or paragraph not applicable in
More informationRetrofit structural insulated panels (SIPs) increase sound transmission loss of existing single family houses impacted by highway noise
Baltimore, Maryland NOISE-CON 2010 2010 April 19-21 Retrofit structural insulated panels (SIPs) increase sound transmission loss of existing single family houses impacted by highway noise Scott Harvey
More informationGHS Flood Final Report CTA Architects Engineers March 31, 2011
GHS Flood Final Report CTA Architects Engineers March 31, 2011 INTRODUCTION: Glacier High School underwent extensive flooding due to a broken frozen fire sprinkler joint of the ceiling in the Small Conference
More informationResidential HVAC System Sizing
Residential HVAC System Sizing William P. Goss University of Massachusetts, Amherst, Massachusetts, USA Corresponding email: goss@acad.umass.edu SUMMARY Heating, ventilating and air-conditioning (HVAC)
More informationEnvelope INSULATION BATT (2) Avoid Using Batt Insulation With Metal Framing. Pressure or Friction Fit
R-H-DI1 INSULATION BATT NR-E-IB1 Avoid Using Batt Insulation With Metal Framing Batt insulation should not be used with metal framing systems. Although it is common to see fiberglass batt insulation installed
More informationThe Optimum Basement Wall
The Optimum Basement Wall Solutions to the Wet Blanket Basement Problem February 27 th, 2014 1 Adapting to Change! We ve made significant advances in water management. Customers no longer accept that musty
More informationMeasuring The Right Thing For Humidity Control It s the Dew Point Stupid!
Page 1 of 6 Measuring The Right Thing For Humidity Control It s the Dew Point Stupid! By Mike Schell, AirTest Technologies Corp. A version of this article appeared in the June 2004 edition of Indoor Air
More informationRenovating Your Basement
building science.com 2006 Building Science Press All rights of reproduction in any form reserved. Renovating Your Building America Report - 0309 2003 (revised 2007) Building Science Corporation Abstract:
More informationChapter 8. Duct Design and Sealing
Chapter 8 Duct Design and Sealing Duct Materials The three most common types of duct material used in home construction are metal, rigid fiberglass duct board, and flex-duct. Both metal and fiberglass
More informationMechanical and Natural Ventilation
BBSE3006: Air Conditioning and Refrigeration II http://www.hku.hk/bse/bbse3006/ Mechanical and Natural Ventilation Dr. Sam C. M. Hui Department of Mechanical Engineering The University of Hong Kong E-mail:
More informationAir Conditioning Contractors of America
Air Conditioning Contractors of America WHO IS ACCA???? Industry Manuals Residential D, J, S, H, RS, T, P A manual J load calculation is a measurement of how much heating and cooling capacity a home will
More informationWater Vapor Permeance of Wood Structural Panels and Wood Wall Construction
T e c h n i c a l n o t e Water Vapor Permeance of Wood Structural Panels and Wood Wall Construction Number J450 February 2009 Controlling against moisture damage in structures depends upon proper system
More informationInsulation R-Value Comparisons
Insulation R-Value Comparisons American Ingenuity s component panels for the 22 48 domes contains seven inch thick rigid Expanded Polystyrene (E.P.S.) insulation which has an R value of 28. American Ingenuity
More information1932 Lexington Houston, Texas 77098-4220 (713) 524-4877. Recommendations for installation of cooling systems
1932 Lexington Houston, Texas 77098-4220 (713) 524-4877 The purpose for this information is to provide a better understanding of the HVAC equipment, components, designs, and installations, of HVAC system
More informationPost-insulation of cellar ceiling and cellar walls
WP5 Education and Economic Promotion Post-insulation of cellar ceiling and cellar walls Educational product: New lecture material for training modules dealing with knowledge and skills how to apply suitable
More informationTHERMAL STORAGE WITH PCM VS. THERMAL INSULATION IN WARM AND HOT CLIMATES
THERMAL STORAGE WITH PCM VS. THERMAL INSULATION IN WARM AND HOT CLIMATES G. C HRISTOPH SPAEH, PE, LEED BD+C SUTTON KENNERLY & ASSOC., INC. 300 Pomona Dr., Greensboro, NC 27403 Phone: 336-855-0993 Fax:
More informationFlorida Energy Efficiency Code For Building Construction
Florida Energy iciency Code For Building Construction EnergyGauge Summit Fla/Com-2010, ective Date: March 15, 2012 -- Form 506-2010 Total Building Performance Method for Commercial Buildings PROJECT SUMMARY
More informationSTATISTICS-COMPUTER BUILDING HVAC STUDY FINAL REPORT
UNIVERSITY OF CALIFORNIA, RIVERSIDE STATISTICS-COMPUTER BUILDING HVAC STUDY FINAL REPORT Goss Engineering, Inc. 320 S. Main St., Suite 102 Corona, California 92882 April 2008 107-12-01 TABLE OF CONTENTS
More informationSubpart 1. Installation. All plumbing systems must be. installed and tested according to this chapter and chapter 4715,
4658.4500 PLUMBING SYSTEMS; NEW CONSTRUCTION. Subpart 1. Installation. All plumbing systems must be installed and tested according to this chapter and chapter 4715, the Minnesota Plumbing Code. Subp. 2.
More informationLong-Term Hygrothermal Performance of Green Roofs
Long-Term Hygrothermal Performance of Green Roofs D. Zirkelbach B. Schafaczek H. Künzel, PhD Member ASHRAE ABSTRACT Green roofs are becoming more and more popular because their thermal inertia, combined
More informationEnergy Savings in High-Rise Buildings Using High-Reflective Coatings
Energy Savings in High-Rise Buildings Using High-Reflective Coatings Executive Summary: Nevertheless, the simulation analyses showed that when designing a building for low energy consumption, even in cold
More informationDIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS
DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS NOTICE TO BIDDERS BID FORM INSTRUCTIONS TO BIDDERS CONTRACTOR S BID FOR PUBLIC WORK - FORM 96 MINORITY AND WOMEN S BUSINESS ENTERPRISE PARTICIPATION
More informationGlossary of Heating, Ventilation and Air Conditioning Terms
Glossary of Heating, Ventilation and Air Conditioning Terms Air Change: Unlike re-circulated air, this is the total air required to completely replace the air in a room or building. Air Conditioner: Equipment
More informationSigns of insulation problems In the winter. In the summer. conditioning system
about your house CE 19 While previous generations may have been content to live in drafty houses, most people now want comfortable warm houses. A healthy house today is well sealed, well insulated and
More informationBefore You Start an Energy Efficiency Retrofit The Building Envelope
ABOUT YOUR HOUSE Before You Start an Energy Efficiency Retrofit The Building Envelope The building envelope is the outer layer of the building that separates the indoor living space from the outdoor environment,
More informationCondensing Boiler Efficiency
Condensing Boiler Efficiency Date: July 17, 2012 PRES E NT ED BY DO N L E O NA RDI LE O N A RD I I NC. HV AC T RAI N I N G & C ON SU LT IN G Concepts 1 The current state of evolution in boiler design 2
More informationUnderstanding Evaporation:
Feature n n n Understanding Evaporation: Why Don t Leaks Always Appear on my Thermal Images? By Terry Carson, B.Sc., MBA, B.S.S.O., R.H.I., C. Tech. Infrared thermal imagers are often touted as an easy
More informationInsulating Basements: Part 3 Basement Wall Systems
The Pennsylvania Housing Research Center Insulating Basements: Part 3 Basement Wall Systems Builder Brief: BB0710 Brian Wolfgang, PHRC Fellow INTRODUCTION The perception of a basement has changed significantly
More informationBILL OF QUANTITY FOR THE HVAC WORKS OF The Institute of space technology, near Toll Plaza (G.T. Road,) Islamabad
BILL OF QUANTITY FOR THE HVAC WORKS OF The Institute of space technology, near Toll Plaza (G.T. Road,) Islamabad PLEASE MARK TICK ON LEFT BOX WHICH EQUIPMENT YOU HAVE QUOTED PROPOSAL BASED ON CHINESE EQUIPMENT
More informationInsulating Unvented Attics With Spray Foam
Insulating Unvented Attics With Spray Foam Closed-cell polyurethane foam provides the insulation, air barrier, and vapor retarder necessary for an unvented attic assembly by James Morshead As a general
More informationManaging the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes
Managing the Drivers of Air Flow and Water Vapor Transport in Existing Single-Family Homes J. Cummings, C. Withers, E. Martin, and N. Moyer Building America Partnership for Improved Residential Construction
More informationComponents HVAC General Standards HVAC Guidelines HVAC System Selection Life Cycle Cost Analysis
Components HVAC General System Selection Life Cycle Cost Analysis Outdoor Air Design Values Indoor Air Design Values Outdoor Air Ventilation Welding Ventilation Temperature Control Systems Ductwork HVAC
More informationDehumidification Frequently Asked Questions
Dehumidification Basics Why do you want to keep indoor Rh between 30-60%? ASHRAE recommends keeping the relative humidity in a home between 30-60% to limit the effects of many unwanted conditions and harmful
More informationThe Prefab Package. Modular EIFS construction offers benefits to today s busy jobsites. Building Envelope. Roland Serino, P.E., of Dryvit Systems Inc.
26 D+D MARCH 2015 Building Envelope Roland Serino, P.E., Dryvit Systems Inc. here has always been a need for a more efficient way to build in large cities like Chicago, New York, Los Angeles or other central
More informationContinuous Insulation Using Polyiso Wall Sheathing
PIMA Technical Bulletin #403 Continuous Insulation Using Polyiso Wall Sheathing What it is, what it does, and why you need it About Polyiso Insulation Polyiso is a rigid foam insulation used in over 70%
More informationBy Tom Brooke PE, CEM
Air conditioning applications can be broadly categorized as either standard or critical. The former, often called comfort cooling, traditionally just controlled to maintain a zone setpoint dry bulb temperature
More informationDUCT SYSTEM DESIGN CONSIDERATIONS Part 1
Refrigeration Service Engineers Society 1666 Rand Road Des Plaines, Illinois 60016 DUCT SYSTEM DESIGN CONSIDERATIONS Part 1 by Roger M Hensley, CMS TYPES OF SUPPLY DUCT SYSTEMS There are several basic
More informationEnergy Efficiency HOSPITALITY. www.energia.ie
Energy Efficiency HOSPITALITY www.energia.ie Your chance to reduce your business energy usage by as much as 20%! 20% is a significant figure and reducing your energy bill by this amount could make a real
More informationMoisture Content in Insulated Basement Walls
Moisture Content in Insulated Basement Walls Peter Blom,PhD, SINTEF Building and Infrastructure; peter.blom@sintef.no, www.sintef.no/byggforsk Sverre B. Holøs M.Sc. SINTEF Building and Infrastructure;
More informationCondensation Fact Sheet METAL BUILDING MANUFACTURERS ASSOCIATION
Condensation Fact Sheet METAL BUILDING MANUFACTURERS ASSOCIATION The Condensation Process Condensation occurs when warmer moist air comes in contact with cold surfaces such as framing members, windows
More informationBuilding Energy Systems. - HVAC: Heating, Distribution -
* Some of the images used in these slides are taken from the internet for instructional purposes only Building Energy Systems - HVAC: Heating, Distribution - Bryan Eisenhower Associate Director Center
More informationEnclosed Football Stadium Design History and Lessons Learned
Enclosed Football Stadium Design History and Lessons Learned Robert L. Towell, P.E., LEED AP, QCxP btowell@cxegroup.com CxE Group LLC St. Louis, Missouri 314-436-6543 With thanks to the St. Louis Convention
More informationCooling Load Calculations and Principles
Cooling Load Calculations and Principles Course No: M06-004 Credit: 6 PDH A. Bhatia Continuing Education and Development, Inc. 9 Greyridge Farm Court Stony Point, NY 10980 P: (877) 322-5800 F: (877) 322-4774
More information