Recent Q&A

• Manual J and equipment sizing

  Approaching the final stages of a 60's ranch major renovation in climate zone 5. We added an approximately 1000 sf great room that will not be served by the existing…

• Integrating sill pan with exterior door flashing

  Planning on using a commercial PVC sill pan when installing french patio doors. I can not for the life of me find any details on integrating a sill pan with house…

• WRB on porch columns and beams

  Currently wrapping up installation of the WRB (no pun intended) on new construction, and debating how to treat the covered porch. All of the new construction that I see around…

• Sealing exterior rigid foam over top of housewrap

  I am planning the following wall for new construction, from inside out: - 2x6 framing - osb sheathing - tyvek drain wrap as both wrb and primary air barrier -…

• Can roof sheathing dry with flash-and-batt?

  我读过很多on this site about flash-and-batt, but I can't seem to find anything definitive about the potential danger of sandwiching the roof sheathing between impermeable spray…

• Air sealing at top plate

  I am owner-builder on an extensive remodel where the entire above-grade structure above the floor joists is being replaced. After extensive planning and research prior to start of construction, I…

• Exterior outlet boxes in rigid foam

  I am hoping to get some advice on the best way to install exterior outlet and light boxes in above-grade 2x6 walls with exterior rigid foam without compromising air-sealing. My…