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INSULATION INSPECTION & IMPROVEMENT
ACOUSTICAL SEALANT CHOICES
AIR LEAK MINIMIZATION
ASBESTOS IDENTIFICATION IN BUILDINGS
BASEMENT CEILING VAPOR BARRIER
BASEMENT HEAT LOSS
BUCKLED FOUNDATIONS due to INSULATION?
CATHEDRAL CEILING INSULATION
CATHEDRAL CEILING VENTILATION
CEILINGS, DROP or SUSPENDED PANEL
DEW POINT TABLE - CONDENSATION POINT
DUCT INSULATION, ASBESTOS PAPER
FIBERGLASS PARTICLE CONTAMINATION
Fiberboard Insulation Sheathing Mold
FIBERGLASS INSULATION MOLD
FIREPROOFING ASBESTOS SPRAY-ON
FRAMING DETAILS for BETTER INSULATION
FRAMING DETAILS for DOUBLE WALL HOUSES
FRAMING METAL STUD PERFORMANCE
FREEZE-PROOF A BUILDING
HEAT LOSS in BUILDINGS
HEAT LOSS PREVENTION PRIORITIES
HEAT LOSS R U & K VALUE CALCULATION
HOUSEWRAP AIR & VAPOR BARRIERS
HOUSE DOCTOR, how-to be
HUMIDITY LEVEL TARGET
ICE DAM PREVENTION
INSULATION AIR & HEAT LEAKS
INDOOR AIR QUALITY & HOUSE TIGHTNESS
INSULATION CHOICES & PROPERTIES
INSULATION FACT SHEET- DOE
INSULATION INSPECTION & IMPROVEMENT
INSULATION R-Values & Properties
LEED GREEN BUILDING CERTIFICATION
LOG HOME ENERGY EFFICIENCY
MOLD in FOAM INSULATION, RESISTANCE
MOISTURE CONTROL in BUILDINGS
NOISE / SOUND DIAGNOSIS & CURE
RIGID FOAM USE INDOORS
SHEATHING, FOIL FACED - VENTS
SLAB INSULATION, PASSIVE SOLAR
STAINS on & in BUILDINGS, CAUSES & CURES
STRAW BALE CONSTRUCTION
STUCCO WALL METHODS & INSTALLATION
STUCCO OVER FOAM INSULATION
SWEATING (CONDENSATION) on PIPES, TANKS
Thermal Expansion Cracking of Brick
THERMAL IMAGING, THERMOGRAPHY
THERMAL MASS in BUILDINGS
THERMAL TRACKING Indicates Heat Loss
TRUSS UPLIFT, ROOF
VAPOR BARRIERS & CONDENSATION in BUILDINGS
VENTILATION in BUILDINGS
WALL CONSTRUCTION BARRIER vs CAVITY
WIND WASHING INSULATION At EAVES
WINTERIZE A BUILDING
Fiberglass duct board: this article discusses the use of rigid insulating board to construct air conditioning and heating system ductwork, and use of rigid ductwork with a thermosiphoning air collector system (TAP).
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Readers should also see DUCT SYSTEMS, and see Recognizing Fiberglass Duct Insulation. Contact us to suggest text changes and additions and, if you wish, to receive online listing and credit for that contribution.
Question: How are Rigid-Insulation Ducts Constructed, What Materials & Tools are Used?
I have heard that rigid insulating board can be used to construct heating ducts (or air conditioning ductwork). Can you provide information about the construction of rigid insulating board ductwork, including duct construction tools, etc.?
Is it reasonable to use rigid duct board with a thermosiphoning air collector (TAP), considering that I desire to move air 12 to 15 feet from the south wall to the middle of a one-story house?
This thermosiphoning air collector plan also includes using air from the basement to enter the cold side of the TAP. -- Byrl Bowman, Kalamazoo, MI
Answer: Fiberglass Duct Board
The product you refer to is fiberglass duct board, available from Certainteed, Knauf, and Owens Corning.
The fiberglass insulating board panels are one-inch in thickness, R-4.3, rigid-fiberglass panels that have a reinforced kraft paper or foil facing on one side. Rigid fiberglass duct board panels can be cut and fitted on site using a utility knife and special grooving tools to make the folds and laps.
The duct board sections are stapled together and sealed using pressure-sensitive aluminum foil tape.
The duct construction hand tools are made by AmCraft, Inc..
To purchase fiberglass insulation duct board materials, check with the larger heating and air-conditioning supply houses in your area, or with a manufacturer's rep.
As for your plan to use a thermosiphoning air collector, it sounds fine, but don't expect much air flow from a thermosiphoning collector if the system is ducted. A fan will be needed.
Technical Opinion About Rigid Fiberglass Ductwork
Foil faced rigid fiberglass duct board has proven an excellent system for constructing air plenums and main trunk lines for duct systems for both heating and air conditioning, and is in popular use across North America as well as in other countries. -- DJ Friedman
Advantages of Rigid Fiberglass Duct Board
Disadvantages of Rigid Fiberglass Duct Board
Here we include solar energy, solar heating, solar hot water, and related building energy efficiency improvement articles reprinted/adapted/excerpted with permission from Solar Age Magazine - editor Steven Bliss.
The link to the original Q&A article in PDF form immediately below is preceded by an expanded/updated online version of this article.
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