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

Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... For windows, doors, and mirrors that could use a little definition, the Naples Etched Glass Border adds a decorative flora... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... 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... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... 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