Comments on: Plans Released to SIP Manufacturers for Quote

By: lavardera

lavardera — Tue, 22 Jan 2008 21:19:31 +0000

Its not quite traditional framing – uses a system of H shaped studs to hold extra thick GWB panels that create a 2hr wall. Its located inbetween two conventional walls, so if there is a fire on one side, then only the one side will fall down. It was designed for stud construction – I’m not sure how it would adapt to SIPs.

By: chad

chad — Tue, 22 Jan 2008 18:48:02 +0000

I think this is what’s spec’ed in the plans now. I’m not that familiar with the system.

If I understand you correctly, you are suggesting traditional framing using the GWB system for the party wall only and SIPs for everything else?

By: lavardera

lavardera — Tue, 22 Jan 2008 15:43:59 +0000

Why can’t you use the GWB systems – the ones with aluminum break away clips on either side of the rated shaft wall. Then you just build your narrow sips wall against it. I doubt you will beat that for cost – this is the lowest common denominator.

By: Chad

Chad — Tue, 22 Jan 2008 15:30:22 +0000

Ray,

Thanks for the info. Good to hear someone is using SIPs in a similar urban application. I’d like to visit the factory once we decide. Not sure if we’ll be able to get the whole team to go. Looking forward to more updates from your project.

By: Ray

Ray — Tue, 22 Jan 2008 14:43:09 +0000

Hi Chad,

We have the same issue here in Baltimore with the party walls. Dan (form Suretight) provided us with the same detail. We actually took a trip up to the Pittsburg area to tour the factory about two weeks ago and found it very informative. I’d suggest taking a few of your team members for a similar trip. It helps to clear up a lot of issues when you view the panels in their various stages of production.
We’ll be submitting our plans for review shortly and should have another comment on this subject in short order.

By: chad

chad — Tue, 22 Jan 2008 12:37:40 +0000

The “Spider” product could certainly be one of our options if we went stick framed. I looked up vendors and they actually carry it just down the street from our site.

Thermocore looks nice but they are a bit outside of the 500 mile radius we are trying to stay in. Staying close to home reduces transportation which helps with LEED and cost. We are also trying to support businesses that are as local as possible.

I was given this link for the detail on achieving a 2 hour fire rating – http://www.suretight.com/suretight_pdfs/SIPS-19.pdf

By: Jerry

Jerry — Tue, 22 Jan 2008 04:32:39 +0000

You might want to check out:

http://www.thermocoremo.com

Their Polyurethane SIPs have the highest fire
rating in the industry.

By: Shawn

Shawn — Mon, 21 Jan 2008 22:09:31 +0000

Hey Chad,

Johns Manville has a pretty cool product called “Spider” – it’s a blow-in technology that seals pretty much every nook and cranny. Not sure of the cost, but it seems highly efficient. If the SIPs aren’t an option – or if you need to augment the SIPs with traditional stick framing – you might consider this route.

Here’s a link: http://www.specjm.com/products/sprayin2/spider.asp

I’ve never personally used this product, so I can’t vouch for it.

By: chad

chad — Mon, 21 Jan 2008 16:08:27 +0000

Just got off the phone with Dan from SureTight and he said they have a detail to use two 4.5″ SIPs with a small air gap in between to achieve a 2-hour fire rating.