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



Post a reply as Anonymous

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


type the code from the image


Post_new_button or Login_button

Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Reused steel windows create an eye-catching splashguard in this walk-in shower. The vintage factory windows bring an inter... A galvanized steel tub is a surprising but charming fixture in this bright and breezy screened patio. It's perfect for was... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... If you lack plumbing skills but have a good sturdy tree, here's the easiest outdoor shower solution of all: Simply attach... Need a window and a door in a tight space? A Dutch door with a window may be your answer. These useful doors are split hor... How do you like this smart use for an old bottle? Clamp an empty wine bottle to a fence or wall near your outdoor deck or ... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... Repurpose birthday hats to create a string of lanterns for your porch, patio, or garden. Cut the tip of the cone, punch h... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon