Mounting Roof Top Unit On Existing Roof

Using improperly designed internal and external isolation springs can increase vibration.

Mounting roof top unit on existing roof.

Installer s guide roof curb packaged rooftop units. Standing seam metal roofing offers a durable sustainable alternative to other roof types and can provide maintenance free service for five to 10 decades. In the last month we were asked to evaluate two commercial spaces for new rooftop units. If anchored holes are punched in the roof.

And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday. The usual method is to mount the unit on wood blocking to raise it above the plane of the panel ribs and give it a surface to bear upon. Baycurb042a baycurb043a baycurb044a precedent roof curb acc svn43e en created date. Often we are asked to evaluate an existing steel roof structure to determine if it can support new roof top units.

Sadly this exceptional lifespan often is sabotaged with the mounting of essential rooftop equipment and ancillary mechanicals. Tenants frequently remodel commercial spaces for their current needs and in many cases add new air make up units exhaust fans and hvac units. Prefabricated roof curbs have been in use since the roof has been utilized for something other than keeping weather out. It may also migrate if not anchored.

Going to be doing a full install. Renaud de saint ceran subject. Units shall be mounted on curbs raised a minimum of 8 inches 203 mm above the roof surface or where roofing materials extend beneath the unit on raised equipment supports providing a minimum clearance height in accordance with table 1510 10. There are three options regarding permitting of replacement roof mounted units.

York does not recommend vibration isolation be pro vided on both the fan skid inside the unit and the curb outside the unit without credible testing results. Never attach roof ashing directly to a york rooftop unit. You can t ask for a better job on a monday morning to start off the week. Excellent weather just a perfect early morning to replace a york dl10 10 ton pack.