09:16AM | 09/28/05
Member Since: 09/27/05
3 lifetime posts

Does anyone have a suggestion or an idea for sound insulating outdoor HVAC equipment? Currently we have approx. 25 tons of equipment placed inside of a wooden fence enclosure with a wooden trellis on top. Our idea is to line the fence with some sort of sound absorbing material but we are having trouble finding one that works for exterior applications. While these units are not putting out a tremendous amount of noise the idea is to get it low enough that people passing them on the sidewalk, which the sit directly next to, do not notice a change above the ambient sound of the street.

Any tips or suggestions are greatly appreciated!



09:51AM | 09/28/05
Member Since: 06/23/04
164 lifetime posts
Sound absorptive panels are available in various forms, but only partially reduce sound. Your post indicated elimination to the level of ambient at a nearby walk. From my past experience, this is only realistically achievable by use of heavy mass walls (i.e. masonry) that are at least 3 or 4 feet taller than the equipment. Even then, some crossover noise can be heard.

An overhead covering is not always necessary. If there are no nearby hard surfaces that are angled such that they reflect sound back to the ground, the top can be left open and very little sound will be evident at the adjacent walk. Any door, crack, or other opening in the wall will allow sound to pass around or through the material.

Many of the newer central chillers have noise levels below the current volume standards, but the frequency is much higher than older equipment and seems to be in a range of human hearing that is extremely annoying. We have retrofitted masonry walls around several of the newer replacement chiller units. We had tried light-weight sound panels but they proved to be only partially effective.



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

Oversize windows let the outside in, even in a cozy cottage bathroom like this one. A roller screen and wraparound shower ... 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... Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... 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