Library director

08:09AM | 04/20/03
Member Since: 04/19/03
1 lifetime posts
During the process of having an energy survey performed on our public library, we discovered that many sections of fiberglass insulation had fallen from where they had been installed. This resulted in open spaces from the plenum (the heating and air conditioning system return is the 3 foot high plenum of air between the drop ceiling and the insulation that spans the length of the building - I know it's not an efficient design, but it's what currently exists) up into the attic area. Needless to say, we were pulling in extra, outside, hot air in the summer to cool, and extra, cold, outside air in the winter to heat. [I also discovered that it wasn't until 1998 that louvers were even installed in the gables. Condensation problems caused several problems, one was that sections of insulation batts got heavy and fell. Having thermostatically-controlled motorized vents seems to have helped dramatically.]

We have received bids from insulation companies, but are trying to determine which is the BEST proposal. First, we DO plan to have our HVAC company run return ducts from the 7 air return vents to the air handler. This job will be completed AFTER the insulation situation is resolved.
Once all fallen insulation is secured, we need to decide A)how the insulation should be supported so that it does not fall again, and B)if and how we should increase the R value.
Insulation support method #1: Run 2 or 3 strands of wire under each section of batting, by attaching wire to the joists.
method #2: Run Kraft vapor barrier (reinforced "paper") under insulation batts, stapling it to the joists.

If we decide it would be worthwhile to increase the R value from 30 to 38, how would we accomplish that? One company required using method #2 with the vapor barrier, to keep any of the additional 4 inches of insulation that they would blow in on top of the existing insulation from filtering on through any air gaps.

Lastly, if we add additional insulation, is cellulose the way to go?

Cost is always a consideration, but any steps we take will be reflected in lowered energy bills (gas and electric.) I want to make the BEST recommendation possible to the Board of Trustees, who must OK any expense this large.

Thank you in advance for your comments and suggestions.

Library Director

Click to reply button
Inspiration banner


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button


Post new button or Login button

To test the boundaries of small-footprint living, interior designer Jessica Helgerson moved her family to a 540-square-foo... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled mudroom will get you in the outdoor mood. Grab your coat ... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR tiles are an affordable way to customize a carpeted floor covering for any space. Make anything from runners to wall-... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... Dark wood shelving and a matching upholstered bench keep this closet sleek and refined. The large window brightens the sub...
Follow banner a
Newsletter icon Flipboard glossy Facebook Twitter Pinterest Youtube Rss icon