Recent Q&A

• Blown in Cellulose in Contact with Non-IC Rated LED Lights

  Hello,Has anyone had issues blowing in cellulose insulation over non ic-rated LED downlights? Im aware that incandescent lights and can lights are a fire risk, however, is there an issue…

• Cellulose Insulation Moved by Wind

  We're prepping a house for blown in cellulose insulation and during inspection we noticed a lot of wind coming into the attic space. We're worried that this wind can move…

• Unvented Attic with Insulation Above Drywall Ceiling

  Hello,Im in a tropical climate (northern Honduras), and wanted a second opinion on this type of assembly. This is a sheathing-less roof assembly that is completely vapor open but air tight.…

• Butyl Tape under Aluminum Zinc Roof in Hot-Humid Climate

  Hello all,We are located in a tropical climate (northern Honduras) and we regularly use Proclima products in our projects. Typically these products are installed with a wood batten rainscreen. However,…

• Boundary conditions for hot climate thermal simulations

  Im running thermal simulations for my Passive House build, and want to know what boundary conditions for the exterior climate are used in a hot, humid climate. PHI sets the…

• Proclima intello for hot humid climate in unvented attic

  Does using a smart vapor retarder in a hot humid climate make sense? It seems to me that its low risk. During summer and high humidity situations it can open…

• Input on thermal simulation software

  Hey all,What software do you prefer using for simulating thermal bridges, frsi values, u values, and such? Ive had some luck with HTflux (currently on trial) but want to explore…

• Cooling a Low-Load Home With Minisplits

  Hey all, What is the best way to condition a low load house with mini splits only? Horizontal ducted is out of the question as I cant get my hands…

• Vapor-Open Membrane for Unvented Attic

  Unvented attics that are not insulated with ccSPF have been prescribed a vapor diffusion port to take care of the interior moisture migrating upwards to the sheathing. However, ive seen…

• Moisture risk in climate zone 1 unvented attics

  Hey all,My company is developing a common construction system for a hot, humid climate in the Caribbean. We are worried about the interior moisture load presenting a risk to our…