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24 Answers

NON-Flanged (Insert) Window Replacement + Flashing

I changed out my rotten wood framed windows for all vinyl ones. The original wall was aluminum siding. I fixed the rotten sheathing, applied house wrap. Then strapped (furred) the wall with plywood. The pictures show how I flashed the rough window openings. I did NOT want flanged windows because I did not want to have to disturb the siding when the window needs to be replaced in the future (far into the futuer I hope). I see a lot of articles on how to flash flanged windows, but I never see methods for Insert (non-flanged) ones.

In Green building techniques | Asked By Alexander Sanita | Sep 28 15
4 Answers

Window sill pan flashing

I'm using beveled cedar siding to create a slopped sill pan with DuPont flexwrap applied over top of it. Unfortunately we only added 1/4" to the rough opening height, and with the cedar siding ripped to the depth of the window sill, the thick end is thicker than 1/4". With the cedar siding cut where it is 1/4" thick, it's depth is about an inch or so shy of covering the entire depth of the rough opening. I don't want to change the rough opening height on all of my windows, so can I just use a piece that isn't as deep as the opening?

In General questions | Asked By Michael Geoghegan | Oct 29 15
3 Answers

Insulating garage walls and ceiling

I have a 20x20ft garage that is attached to the house. 2 walls are attached to the house(which are insulated). The 2 garage doors are insulated, the ceiling and walls are drywall. Above the garage there are bedrooms. The builder lowered the ceiling in the garage. There is a 3ft distance from the 2x4 garage ceiling to the bedroom floors (which are insulated). The house has soffit along the entire front. I would assume there is lots of venting.

In General questions | Asked By Jason Ronfeld | Oct 29 15
3 Answers

ERV vs HRV what size unit and which is best?

I have a timber frame home with sips built in 2007. At the time we put in forced air heat with an aprilaire erv system tied to a trane furnace/ac and a aprilaire dehumidifier. I have always had a problem with condensation and humidity levels in the winter time. The arpilare rep said I need a hrv not a erv? Aprilare does not make a hrv which system would work with the duct work for the aprilare system and what size system do I need for a 2000 sq foot home with two levels?

In Energy efficiency and durability | Asked By gregory walter | Oct 29 15
3 Answers

Do people report mildew problems in their homes as a result of using spray foam insulation?

I am considering using spray foam insulation in my metal building and then building out an apartment inside. The a/c contractor is discouraging me using the spray foam because he claims that he has encountered homes that have a "wet rag" odor because of problems regulating the moisture in homes with spray foam insulation. Is this likely?

In General questions | Asked By Terry Blackwell | Oct 29 15
2 Answers

Options to reduce construction cost and retain wall performance

"Value engineering" wall insulation options
by Tim Oldfield

In General questions | Asked By Timothy Oldfield | Oct 29 15
3 Answers

Should there be dampers in return air ducts for zoned systems?

The HVAC team just finished installing a zone control panel to split the house into upstairs and downstairs zones. The house was originally built in 1950 with a single heat register and no A/C. It was retrofitted with forced air heat and A/C but the installers did not provide return air ducts for the upstairs. All was well in the winter but we experienced horrible temperature imbalance during the summer when the A/C was on (70F on first floor, 80F upstairs in the bedrooms).

In Mechanicals | Asked By David McKain | Oct 30 15
2 Answers

Airfoil receptacle box

Is any particular kind of foam (fire stop?) required when filling sealing chamber?

In General questions | Asked By Michael Geoghegan | Oct 29 15
9 Answers

Device that switches between ERV and HRV?

We live in a 1910 craftsman style bungalow in very northern Illinois (climate zone border 5a/6b) that has undergone some VERY heavy insulation/airsealing retrofits. Now as the weather gets cooler and the air dryer, the inside RH stays VERY high all winter.

We are thinking about getting an HRV or ERV as a remedy. But aren't sure which to purchase. (I've read extensively the blogs/Q&A on here [and elsewhere] regarding them).

In Mechanicals | Asked By David D | Oct 29 15
1 Answer

Information on Rex Roberts built home

I'm looking at a Rex Roberts home for sale on the North Shore in Massachusetts (see attached image). Am curious to learn if anyone has knowledge of how well Rex Roberts homes age (this one was built in 1964) and if there are typical problems specific to these homes as they age. I should also mention I'm a novice with green construction but learning fast!

In General questions | Asked By Christine Costello | Oct 29 15
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