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5 Answers

If I had to build a stem wall for a manufactured home that was 20' x 60' what and how much would I need

a concrete stem wall for a manufactured home that is 20' x 60' - what supplies and how much of each would be needed

In General questions | Asked By golfson | Nov 12 17
6 Answers

ARXX ICF versus Durisol ICF in a Mixed Humid Climate?

I'm trying to evaluate the pros and cons of using ARXX ICF versus Durisol ICF in a mixed humid climate. I've used ARXX here in North Carolina and definitely like the system. I'm considering Durisol because I would like to direct-apply a stucco finish. I'm familiar with a Durisol - type system built in a cold dry climate (Innsbruck) and it seems ideal still many years later. However, i have heard concerns about moisture in the wall assembly as well as thermal bridging in the Durisol product. I'm grateful for any help...

In Green products and materials | Asked By Randall Lanou | Feb 24 11
2 Answers

Below-grade Insulation Challenge

Hello,

I have an insulation challenge.

Our home, was originally built in 1958, and is a split-level, with the lower level about 4' below grade. We're located near Denver, zone 5. We are preparing to remodel about half of the lower level, which is about 1700 in total. Construction is Brick + 2x4 exterior walls, with some 1/2" layer of insulative/reflective sheet between. For the lower level, the 8" foundation wall is about level with ground in the rear (south), but below grade in the front (north). See photo... grade is about 8" under the window.

In General questions | Asked By rossn1 | Nov 11 17
8 Answers

Rate my knee wall insulation plan

Hi all,

I want to re-insulate the upper floor of my 1920 1.5 story.

Here are pics showing current configuring and my planned new configuration.

My main questions are:

1. On the short exterior walls, is it weird that the shiplap and weather barrier are installed on the inside face of the studs, which prevents me from accessing those stud bays to add insulation? Is my proposal to create a small 2x6 wall immediately inside this exterior wall a reasonable one? Should there be some sort of channel and air barrier between the insulation and the shiplap?

In General questions | Asked By jmetrail | Nov 10 17
6 Answers

Steel SIPs

I know that a steel stud dosent provide a thermal break. However this company seems to have
resolved that issue.

They put 2 steel studs opposite each other on the flat, with foam in between.
Any info on this type of SIP's would be appreciated.

Thanx

B

In Green products and materials | Asked By Brian Whidden | Jun 8 15
17 Answers

Hydronic ceiling installation (DIY)

Climate Zone: Marine 4 (Seattle, WA)
Ceiling size: 900 sq/ft
Ceiling Drywall: 5/8"
Joists: 24" o.c. 2x4
Attic: unconditioned

Current plan is to remove all old attic insulation and wood shingle roofing scraps thrown in during a previous roofing job. Then replace old knob and tube wiring with something more modern. Finally, air seal and add R-39 blown cellulose.

In Energy efficiency and durability | Asked By Brad Steeg | Oct 29 17
5 Answers

How can I address condensation in my arched cabin walls

I built a 20x24 arched cabin(Gothic arch,2 inchsteel frame, 2x4 endcaps) in 2016. We were told that the provided insulation was r-49, but subsequent conversation with the manufacturer , solar gawd, said we are more like r 30, with two layers on the outside and two layers on the inside of the cabin ribs. We planned to make the end caps r 30 but the local contractor refused to install the rigid foam we had bought so we only have r 15 fiberglass in the wall.

In Mechanicals | Asked By waterfront165 | Nov 12 17
3 Answers

Will radiant heat system PEX tubing melt polyethylene vapor barrier?

The heating contractor we hired to install a hydronic radiant heat system for our backyard cottage project did not put a polyethylene vapor barrier on top of the gravel, under the 2" rigid foam insulation. The rigid foam insulation panels he installed have a mylar-like film on the under side, which he thinks is sufficient. We live in VERY wet Western Washington so I'm wondering if this will in fact be enough.

In GBA Pro help | Asked By Mightorta | Nov 12 17
1 Answer

How can I address condensation in my arched cabin walls

I built a 20x24 arched cabin(Gothic arch,2 inchsteel frame, 2x4 endcaps) in 2016. We were told that the provided insulation was r-49, but subsequent conversation with the manufacturer , solar gawd, said we are more like r 30, with two layers on the outside and two layers on the inside of the cabin ribs. We planned to make the end caps r 30 but the local contractor refused to install the rigid foam we had bought so we only have r 15 fiberglass in the wall.

In Mechanicals | Asked By waterfront165 | Nov 12 17
4 Answers

Heat pumps for cold climate

Is anyone aware of any conventional split system products (not mini-splits, but to be installed with a conventional air handler) available on the market with a cut-off temperature below -8C (17F)?

I am aware of the Mitsubishi Zuba central but the capacity of this product is much higher than what I need.

Thanks in advance,

Gio

In Mechanicals | Asked By Gio Robson | Nov 8 17
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