2024年3月18日 · I did a very similar insulation this summer on my new build, also in vermont. 2x6 exterior load bearing walls, 2x4 interior walls, 12" total cavity with dense pack cellulose. I helped the insulator so I got an up close look at their process. We put up netting, side staples , blew in the insulation, rolled it flat, then I used 1/2 drywall.

2018年4月16日 · I've been going over insulation techniques to use on a new home. Every insulation contractor that we've talked to has a different system. One in particular that is being pushed is dense pack dry cellulose. I have personally witnessed wet cellulose settling in our own home, however based on everything I have read about and heard about dense pack is that it …

2011年3月11日 · 1. Install a layer of fiberglass at the bottom of the truss cavity, staple fabric to the bottom of the trusses and dense pack the cellulose above the fiberglass. The purpose of the fiberglass is to keep the cellulose in place. I've asked via email why this is necessary in a dense pack installation; awaiting his response.

2022年9月25日 · As insulation contractors that do dense pack cellulose are few and far between in my area, I was pleased doing it myself with a rental machine was relatively simple and straight-forward. I used a Krendl 425 blower, rented from my local independent building supply store for …

2012年2月11日 · I will believe that Dense-Pack Dry-Blown Cellulose offers a higher R-value per inch and better dense pack performance than the JM Spider Spray-In Fiberglass product (sprayed in @ high density = >1.8 lbs/ft³) when the testing is conducted by a neutral testing service and not by CIMA (Cellulose Insulation Manufacturer's Association.)

2020年4月4日 · Dense pack cellulose vs mineral wool cabinelectrician | Posted in Energy Efficiency and Durability on April 4, 2020 08:47am All I keep hearing and reading is about dense pack cellulose for wall insulation, yet rarely hear about using rockwool insulation.

2015年3月26日 · Wet spray and dense pack cellulose insulation is typically installed or applied in a range of densities from approximately 3.0 lbs/ft3 to 4.0 lbs/ft3. Installations below 3.6 lbs/ft3 are typically wet spray, installed with a wet adhesive or water because cellulose at this density is liable to settle unless it is fixed with adhesive or applied ...

2014年10月17日 · David and Bill H. also emphasize that thick dense-packed cellulose retards air flow by itself. So at this point, we don't even know how good the air barrier needs to be. Maybe a dense packed wall prevents infiltration without an air barrier? (Obviously a weather barrier is still required, but it comes free with the air barrier)

2019年7月6日 · While I have the walls open I am insulating from the outside. I hate fiberglass. I’ve already successfully dense packed a number of the wall cavities with the following method…. 1. rip plywood in 2×8 sheets and fasten longways to wall. 2. hand pour/pack cellulose in cavities 3. tamp with 2×4 until tightly packed/cant pack anymore 4.

2021年5月16日 · Also, I now think I want to use dense pack blown fiberglass to help keep the stud-frame's moisture levels lower and hopefully reduce long term chances of mold (pretty sure of that) and termites. I have read that even drywood termites need at least 10% wood moisture levels and with fiberglass insulation I think I have a pretty good chance of ...