Recent Q&A

• Practical considerations for line-set length?

  Given the choice of a 15', 48' or 60' HVAC lineset run (this is new construction), obviously the 15' would be the "best". Except, that puts the compressor right outside…

• Cap Nail Leaks with UDL30?

  We've install UDL30 underlayment on the roof using a Stinger Pnumtic cap nailer.There are drips in a few spots in the building on heavy rain days. I think it's coming…

• Portico attachment detail, and can it be stubbed for later?

  I'd like to build a portico like the one pictured. This is new construction and we are at house wrap on, installing windows phase. Next comes siding.Two issues:1. I can't…

• What to do with the bottom of the Tyvek with a slab on grade?

  We've got a single story slab on grade, plywood sheathing, seams are taped with Siga Wigluv, including the bottom seam from the plywood to the top of the slab (using…

• Process and product to fix concrete slab surface issues prior to framing over them?

  I have some issues with the slab that was poured for a garage, and I need to frame an interior wall over a bad area.The slab was poured with a…

• Best quality fasteners for exposed screw metal roofs?

  It seems that the biggest issue with exposed screw metal roofs (as reported by the internet) are the fasteners, or the gaskets around those fasteners. Supposedly you can avoid a…

• Dryer vent options: how to roof flash with metal panels and/or how to protect studs from heat in wall?

  I've been unable to locate any information on what type of jack/boot to use and how to flash it for a dryer vent penetration through a corrugated metal roof. The…

• Good book on duct installation?

  Any recommendations for a book that covers residential HVAC duct installation? I'd like to find something that's to-the-point but contains all the common cases like attic, basement, sheet metal, flex,…

• Synthetic underlayment for a metal roof

  I'm looking for some advice sorting through the various options on underlayment for metal roofing panels. Most articles are either "synthetic vs tar paper" or "why our product is the…

• Remove and replace delaminating roof decking, or just put a new layer on top?

  Our roof decking (new construction) is warping and delaminating (defective plywood) and we are dealing with the APA on a claim.They suggested that we add a second layer of new…