Local Law 97
Local Law 97 sets carbon emissions limits on buildings over 25,000 square feet in New York City. The caps tighten significantly in 2030, and non-compliance carries penalties of $268 per ton of excess CO₂ annually — costs that add up quickly for large residential and commercial properties.
Windows are one of the highest-impact building envelope improvements available. Outdated single- or double-pane windows allow significant heat loss in winter and heat gain in summer — driving the HVAC loads that generate a building's carbon output. Replacing them with high-performance systems with proper thermal breaks and insulated glazing directly reduces energy consumption and, by extension, emissions.
We work alongside energy consultants and engineers who model your building's emissions profile. Our role is to specify and install window systems that deliver the thermal performance the compliance plan requires.
Triple-pane glazing and thermally broken frames dramatically reduce conductive and convective heat transfer. Buildings with upgraded windows require less heating in winter and less cooling in summer — reducing the energy load that drives emissions.
Aging window seals and frames allow significant uncontrolled air leakage — drafts that force HVAC systems to work harder. New window installations with proper perimeter sealing close those pathways, improving the building envelope's overall performance.
Low-emissivity coatings reduce radiant heat transfer and allow solar control to be tuned by orientation. Buildings in dense urban environments benefit significantly from glazing specified to match actual solar exposure — reducing cooling loads without sacrificing daylight.
Kenemax is not an energy consultant — we do not model emissions or file LL97 reports. What we do is specify and install window systems that deliver the thermal performance your compliance plan calls for. We work directly alongside the engineers and consultants managing your building's overall strategy.
Three layers of glass with two insulating chambers — significantly lower U-values than standard double-pane systems. Specified when thermal performance is the primary driver.
Frames with a thermal break barrier between interior and exterior aluminum — eliminating the conductive path that causes condensation and heat loss at the frame perimeter.
Selective coatings that reflect infrared radiation while passing visible light. Specified by orientation and solar exposure to balance heat retention in winter with solar control in summer.
Perimeter caulking and flashing at every opening — because a high-performance window installed with gaps is still a leaky building. Installation quality matters as much as product specification.
Talk to us early in the process. We can work from your consultant's performance specs or help you identify the right systems for your building's needs — and handle everything from product selection through installation.