Tom Mallard
  • Bellevue, WA
  • United States
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Tom Mallard's Discussions

Request Hemp-mortar Suppliers & Tool Sources, Methods

Started Feb 1, 2016 0 Replies

Finding sources online is one thing, asking for project experience is what I'd like to get, this for USA east of Seattle 1-hour for shipping, assume most sources still in Canada & per container…Continue

Tags: thermal, hemp-mortar

Standard Wall Thermal Upgrade Analysis

Started this discussion. Last reply by Bill Bradbury Dec 2, 2013. 1 Reply

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Applied Passive-solar Structural Design

Started this discussion. Last reply by Bill Bradbury Apr 2, 2012. 48 Replies

Passive-solar has been known to work well but certain things about our architecture fail the thermodynamic efficiency test and there are reasons why.First is heat-transfer through conduction, the…Continue

Tags: comfort-zone, heat-transfer, passive-solar

 

Tom Mallard's Page

Latest Activity

Tom Mallard commented on Tom White's video
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How to Insulate a Tiny House (or a Big Fat House)

"So consider the conduction paths of studs-rafters show quite clearly, to counter this requires insulation on the OUTSIDE of the sheathing and under the siding (furring strips keeping condensation from the siding). Doing this reduces heat-loss…"
Oct 24, 2016
Tom Mallard replied to Energy Wise Solutions's discussion No Utility Homes, Are we ready to start building Homes that are not connected to traditional utilities ?
"Integrating it all is hard if the design didn't have that in mind & few homes do other than Earthship Biotecture's  designs, there are few to claim such. I have an integrated all-electric off-grid design, the Spartan Farmhouse,…"
May 19, 2016
Tom Mallard replied to Energy Wise Solutions's discussion No Utility Homes, Are we ready to start building Homes that are not connected to traditional utilities ?
"The largest issue being off-grid is thermal energy, heating & cooling my guess 80% of needs the rest is electricity for a typical home including the hot-water & laundry. Firstly is that Long-Wave Infrared, LWIR is conserved cloudy day or not…"
May 19, 2016
Tom Mallard replied to Energy Wise Solutions's discussion No Utility Homes, Are we ready to start building Homes that are not connected to traditional utilities ?
May 12, 2016
Tom Mallard replied to Energy Wise Solutions's discussion No Utility Homes, Are we ready to start building Homes that are not connected to traditional utilities ?
"For homes with septic tanks that effluent can be used to grow algae using photo-bioreactors to purify the water, it only takes filters for full recycling algae are very good at cleaning water, Earthships use this effluent for outdoor landscape…"
May 12, 2016
Tom Mallard replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Earthship's have been doing solar-thermal water for several decades they recommend a 150-gallon tank as usage hardly effects it, they use a brand with solar-thermal elements and their backup is an inline on-demand heater as it's rarely…"
May 12, 2016
Tom Mallard replied to Dave Hahn's discussion Airflow "through" a building or "beneath" the exterior cladding
"I'm suspecting the dust gets into the attic at the eaves where the largest pressure diff's are from the wind, from there down the wall outside the vapor barrier pumped through by gusts. The barrier job sounds too worthy for blow-through to…"
Apr 14, 2016
Tom Mallard replied to Tim Kendzia's discussion Cooling effect from solar panels
"Sidenote first, the thermal units are a commercial brand sold with the pump, they make custom panels used in a proprietary system, it's pricey yet payback is pretty fast & afaik they can adapt theirs to existing brands. Yup in summer my…"
Apr 11, 2016
Tom Mallard replied to Tim Kendzia's discussion Cooling effect from solar panels
"Agree that shading does work to reduce heat-load nice stats from Dennis, now consider in winter using the panels to heat air by mounting them with 3/4" air-sealed gap ducted to the system to collect it, same system cools in summers storing at…"
Apr 11, 2016
Tom Mallard posted an event

Free webinar on barriers at Online

April 13, 2016 from 11am to 12pm
From an email, Dow-Corning the sponsor, relevent to radon discussion, requires registration:Factors - Other Than Airtightness - to Consider When Selecting an Air BarrierSee More
Apr 1, 2016
Tom Mallard replied to Rodney Fox's discussion Radon: Truth vs. Myth
"Yeah, it's all a mess, eh? Thus consider it's due to the floor not being airtight, mainly at the edges is the fundamental. So if having to do the work consider adding insulation board below the joists and caulk it to become a vapor barrier…"
Mar 31, 2016
Tom Mallard replied to Rodney Fox's discussion Radon: Truth vs. Myth
"Replying to Rodney's post not having a reply on that comment as a builder-contractor satisfying code, my comments are pertinent, a 2" slab of granite has a finite emission rate of radon not worthy of worrying about, eh? Post your…"
Mar 26, 2016
Tom Mallard replied to Rodney Fox's discussion Radon: Truth vs. Myth
"I'm only questioning the blanket statement, "... 99% of sealer's for granite counter-tops are not regulated and are not certified by the FDA as food safe." I'm assuming they sell restaurants as well so if you buy at big-box…"
Mar 25, 2016
Tom Mallard replied to Rodney Fox's discussion Radon: Truth vs. Myth
"Well having installed a number of them I'll argue with you over a pro doing the work for food-contact yet I've also done commercial kitchens so not quite DIY on materials chosen & methods used for safety on this. Until then I'll…"
Mar 24, 2016
Tom Mallard replied to Rodney Fox's discussion Radon: Truth vs. Myth
"Yeah, this all has a history, yet today if it's sealed as most are with a food-contact rated finish the odds are very low for the radon to get into the air. Air is how it's deadly able to stick to your lungs, otherwise it's emitting…"
Mar 24, 2016
Tom Mallard replied to Rodney Fox's discussion Radon: Truth vs. Myth
"This is a good issue to show the difference between radiation exposure and inhaling-ingesting-absorbing a "hot particle", that produces "ionizing radiation" in this case emitting alpha-beta-gamma the reason there is no known safe…"
Mar 24, 2016

Profile Information

Company
Mallard Design Company
Professional Interests
Residential scale wastewater purification using biomass to extract excess nutrients, autonomous architecture leveraging thermal-mass + insulation in wall systems, solar-thermal collection & storage of thermal needs hot&cold.
Website URL
http://www.mallard-design.com
Twitter ID
@tmallard
LinkedIn Profile
http://www.linkedin.com/in/mallarddesigncompany

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Tom Mallard's Blog

Applied Passive-solar Structural Design

Posted on December 21, 2011 at 4:00pm 0 Comments

Passive-solar has been known to work well but certain things about our architecture fail the thermodynamic efficiency test and there are reasons why.

First is heat-transfer through conduction, the wood, drywall, sheathing all having rather high heat-transfer coefficients. Next is convection from a heat-riser which takes the warmth of the floor and moves it to the ceiling.

Until these are dealt with they cost a lot of energy, if one is trying to not require external heating for…

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Comment Wall (1 comment)

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At 11:28pm on March 2, 2011, Diane Chojnowski said…

Hi Tom,

Welcome to Home Energy Pros! Great start...thanks for adding all the great photos and comments. If you're blogging about home performance, this is the place for you!

Thanks!
Diane, HEP Moderator

 
 
 

Forum Discussions

Home Energy Pros and #MeToo

Started by Mike Rogers in General Forum 12 hours ago. 0 Replies

How would you insulate this roof?

Started by David Butler in General Forum. Last reply by David Butler yesterday. 34 Replies

Psychrometric Chart Training

Started by John Krochmalny in Training. Last reply by Mahendra Shah on Friday. 1 Reply

Latest Activity

Blake Shurtz posted a discussion

Replacement for Energy Conservatory Flow-blaster

It's too bad that the flow-blaster is no longer being produced or technically supported. Does…See More
6 hours ago
Profile IconBrian Cizmar, Charles Allen, Charles Buell and 1 more joined Home Energy Pros Forum
9 hours ago
Mike Rogers posted a discussion

Home Energy Pros and #MeToo

If it doesn't seem obvious why a discussion of …See More
12 hours ago
David Butler replied to David Butler's discussion How would you insulate this roof?
"Sean Lintow proposed rails and clips (re: first comment in this discussion), but in the context of…"
yesterday
Brad Cook replied to David Butler's discussion How would you insulate this roof?
"I missed where the suggestion for rails came in. The plywood would not need any rails. 4+ inches is…"
yesterday
David Butler replied to David Butler's discussion How would you insulate this roof?
"I'm a little confused about the necessity and purpose of using support rails if working on…"
yesterday
David Butler replied to David Butler's discussion How would you insulate this roof?
"If you insulate master bedroom and family room from below, you definitely need more R-value than…"
yesterday
David Butler replied to David Butler's discussion How would you insulate this roof?
"Brad, I was only talking about using EPS between the ridges, if necessary, to conform to bolts.…"
yesterday

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