11-04-17, 09:27 PM | #31 |
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Pex Layout in MBR
1/2” Pex-A. Mr Pex brand, nice flexible stuff. 4 loops, 165’ each, 6” on center, Counter Flow pattern. This allows for very low pumping electricity usage due to low head loss. 4 heating zones in house, each has its own Grundfos Alpha (about 5 Watts on low) Continuous circulation in heating season, about 8 months a year. Master Bath along North wall is its own zone, 1 loop, so it has its own thermostat so I can keep bathroom 15* warmer than Master bedroom, shower has a heated seat. Last edited by buffalobillpatrick; 11-05-17 at 10:17 AM.. |
The Following User Says Thank You to buffalobillpatrick For This Useful Post: | Daox (12-19-17) |
11-04-17, 09:35 PM | #32 |
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Pex manifold kitchen / GR
6 loops, each about 170’ Last edited by buffalobillpatrick; 11-05-17 at 10:20 AM.. |
The Following User Says Thank You to buffalobillpatrick For This Useful Post: | Daox (12-19-17) |
11-04-17, 09:43 PM | #34 |
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Decra Shake steel roof going over battons & counter battons over Ice & Water Shield underlayment that is over 5/8” CDX plywood roof sheathing
Last edited by buffalobillpatrick; 11-05-17 at 01:33 PM.. |
The Following User Says Thank You to buffalobillpatrick For This Useful Post: | Daox (12-19-17) |
11-04-17, 09:54 PM | #35 |
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R-49 closed cell SPF on underside of roof sheathing. Product is Bayseal which has an intumescent within it + 20 gallons of their intumescent paint sprayed on bottom.
Pic. showing attic trusses that support the roof and frame the upstairs 2 bedrooms & full bathroom. Last edited by buffalobillpatrick; 11-05-17 at 09:14 AM.. |
The Following User Says Thank You to buffalobillpatrick For This Useful Post: | Daox (12-19-17) |
11-04-17, 09:59 PM | #36 |
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Front of house with unfinished 12’ x 20’ balcony / carport.
Front bedroom has 6’ sliding glass door onto balcony. Parking area for 2 cars along retaining wall. Last edited by buffalobillpatrick; 11-05-17 at 10:28 AM.. |
The Following User Says Thank You to buffalobillpatrick For This Useful Post: | Daox (12-19-17) |
11-05-17, 10:33 AM | #37 |
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I have decided to cover the inside wall and gable ends with R-15 3.5” Roxul rock wool reaching an R-40 total.
The downstairs ceilings are 10’ high. I’m using 10’ LSL’s which are a manufactured 2x4 They cost more but are straight, good luck getting a straight 10’ lumber yard 2x4 Last edited by buffalobillpatrick; 11-05-17 at 01:43 PM.. |
The Following User Says Thank You to buffalobillpatrick For This Useful Post: | Daox (12-19-17) |
12-19-17, 05:04 PM | #38 |
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I got the concrete slab poured for the downstairs floor.
1440 ft2 full floating with 6” of type 2 EPS under it and 7” around entire perimeter. Old sub-contractor used young labor & did a nice smooth job, he said that the rich mud was easier to finish. I got it done about a month before Winter set in. About 5" thick on average, high strength 5,000 PSI & double fiberglass (which are now smaller strands than they used when i last did this) Ran a 1/2" rebar (#4) all around perimiter about 5" in from edge. The heavy gauge 6" x 6" remesh in the slab was handy for attaching the pex with zip ties. I tried to run the 1/2" pex at 6" on center but with all the sweeping turns it averaged 7” I reduced the doorway heat loss issue, to some extent, with EPS foam between slab & outside concrete wall and a 2" x 12" PT board on top to bridge the gap. The 2x12 at the outside edge sits on 1.5" angle Iron that is attached to the inside of the 8" concrete wall with 3/8" RedHead anchor bolts, the inside edge of the 2x12 sits on top of part of the concrete slab that was allowed to run under it for a few inches, very secure. I will need to dress it up on top with something that won't conduct too much heat out. Last edited by buffalobillpatrick; 01-09-18 at 11:30 AM.. |
The Following User Says Thank You to buffalobillpatrick For This Useful Post: | Daox (12-19-17) |
12-27-17, 06:50 PM | #39 |
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Upstairs 672ft2 is heated by Pex suspended under the 3/4” Advantech subfloor.
This heat transfer from the Pex via convection & some radiation to the subfloor is less efficient than conduction in a slab & the water temperature needs to be about 40*F hotter (no good for solar or a heat pump) Most is spaced at 4” on Center and is 2” to 6” below subfloor and works mostly by convection. Last edited by buffalobillpatrick; 01-02-18 at 06:46 PM.. |
12-27-17, 07:14 PM | #40 |
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Pic of Pex under upstairs subfloor
Last edited by buffalobillpatrick; 01-02-18 at 01:25 PM.. |
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