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0 Answers

A discussion on mildewcides and fungicides in paints.

Good afternoon all,

I am near the process of painting/staining my walls/ceiling/cabinets in my tiny house.

I will be getting low/no voc products but I wanted to see if anyone has any experience using a no-mildewcide paint and how it is holding up?

Some high quality, low voc paints such as Eco's and Safecoat have no mildewcides but I am wondering if the downsides of no-mildewcide paints end up becoming problematic.

Specifically, I am wondering:
1) if no mildewcide paints are ok for bathrooms (with steam from showers).

In Green products and materials | Asked By Grey Wolf | Oct 7 17
2 Answers

Foam OSB seams instead of taping

My insulation contractor has recommended using closed cell spray foam on the OSB sheathing seams instead of taping the seams. Any thoughts on this approach?

In Energy efficiency and durability | Asked By Norman Bunn | Oct 6 17
2 Answers

Air Sealing Breaker Box

Like many people, I have a breaker box in my attached garage. I wish to fully seal the garage-house interface, and have gone through sealing most of the holes and cracks already.

However, what is the best way to seal the breaker box? I can seal the edge of the panel with caulk. I can spray foam the drywall-box gap. But all of this compromises servicability, and there's still so many remaining pathways through the wire knockouts in the box.

In Energy efficiency and durability | Asked By pshyvers | Oct 6 17
1 Answer

Problem with my user name

I changed my user name a few days ago from the assigned numbers to my actual name. My posts are still showing the numbers. Please help, not sure what I'm doing wrong.

In General questions | Asked By Randy Williams | Oct 6 17
2 Answers

Has anyone used liquid flashing for window rough openings and still spray foamed and taped the jambs and head of windows?

We are installing European flangeless windows and have used zip liquid flashing for the rough openings. We're planning to use air dam sealant on the interior. The window manufacturer wants us to use air dam on the exterior as well with and air gap between the two beads. Our ZIP Rep has said that the zip tape can be used to tape to the liquid flashing, and it seems less expensive and easier to use for our exterior. But the window manufacturer doesn't like to mix tapes with liquid flashing. Has anyone used liquid flashing and caulk on interior but tapes on exterior?

In Green building techniques | Asked By Jonathon S | Oct 5 17
3 Answers

Venting and finishing an attic of a timber frame home

I'm hoping some folks wiser than I can chime in with their thoughts on how to properly finish off the attic space of a former New England Barn.

In a nutshell here are the existing conditions:
-A 200+ year old Post and Beam building near the ocean. (good breezes)
-An unaccessible dirt floor crawl space with No vapor barrier
- Wall insulation : 1-2" Encompassed Balsa wood insulation snaking between offsetting 2x3's (airflow from the crawl space up thru the walls is good for air circulation and bad for R value.)
-2 finished floors of existing living space

In GBA Pro help | Asked By Tates23 | Oct 3 17
2 Answers

Heavy 2x6 fascia too heavy for square-cut truss tails?

My trusses have 2x4 top chords on a 4:12 pitch with 2' overhangs and square-cut tails. I plan to use two 3-1/2" #10 deck screws (with pilot holes) to attach 2x6 fascia boards to each truss tail. I live in central Arizona, so I'm not worried too much about rot, and I plan to just paint the fascia boards thoroughly and not cover them with anything else. The extra height of the fascia boards will support the ends of my steel roofing, which will rest on 2x4 strapping higher up. My local lumber yard didn't have any kiln-dried 2x6s at 12' or longer, so they ordered some for me.

In General questions | Asked By Jeff Cooper | Oct 5 17
5 Answers

Metal roof underlayment

I am building a very tight house borderline zone 3-4. The walls are 2x6 probably going with dense pack cellulose. Zip sheathing with foil faced 1/2" polystyrene facing out to 1/2" air gap rain screen.
The roof is metal over an OSB deck. Part of the roof is over an insulated attic (12" cellulose ) the other part is over a vaulted ceiling. The rafters are 2x8. The vaulted ceiling is going to be closed cell foam.

The roof will be metal (white) screwed to 2x4 purlins. This gives me plenty of ventilation under the metal.

In Energy efficiency and durability | Asked By Joe2baba | Oct 4 17
3 Answers

HVAC setup in small basement

Hey folks,

In Mechanicals | Asked By Jamie Royal | Oct 5 17
6 Answers

HFOs vs. HFCs in spray foam

I am finally ready to insulate my basement with closed cell spray foam. I have the choice between Icynene, Demilec Heatlok HT HFO, or Lapolla Foam Lok 2000-4G.

The latter two brands use HFOs and not HFCs for their blowing agent. I'm not sure which version of Icynene the contractor quoted me for, but he said they weren't using HFOs yet.

In Green building techniques | Asked By Jimmy Nguyen | Oct 4 17
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