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2 Answers

Longevity of valves on PEX manifolds

I am planning on a home run installation in a new house. I never had much luck with the PVC valves currently used in residential plumbing actually working when you need them to.. They either are stuck open or will not shut off. I would try exercising them to keep them loose but they would end up leaking past the stem.

I am concerned with the poly valves used on the manifolds not doing there job 10-15 years down the road. Some manifolds offer the optional copper or brass valves, but our water has a high content of limestone and is tough on copper pipes and fittings.

Asked By John H. Stehman | Nov 5 14
8 Answers

Sealing meeting point of brick wall and asphalt driveway


My house, a semi-detached, has an asphalt mutual drive between it and the neighbors house to the south that comes right up to the side of the house.

I'm concerned about the meeting point between the asphalt and the brick as it looks like water can collect there and seep into the brick (I have some Interior spalling and suspect that this is the source), but I'm not sure how to address this.

Do I use caulk.. or something with the consistency of tar.. or something like mortar for bricks..?

Some photos here:

Asked By Jon Haque | Oct 22 14
0 Answers

Attic insulation options

Hi all,

This is about my primary house attic space. At some point I am going to finish half of it off. Here is a pic of the space:

Basically when you get to the top of the stairs, what is in front of you is what will be finished. Where the HVAC is located will be left "attic storage". This will give me roughly a 20x20 space.

Asked By Joe Watson | Nov 3 14
9 Answers

Brick veneer wall assembly and basement insulation techniques?

I am currently in the process of having a home constructed in Western KY zone 4. The basement floor and walls have been completed.
-walk out basement
-poured walls
-capillary break was NOT installed between footing and wall structure
-minimal external insulation on poured walls (5/16" foam board to protect waterproofing)
-vapor barrier was installed above gravel bed before floor was poured.
-no insulation below slab

?1. how will the lack of a cap. break affect my options for basement insulation (basement will be finished)?

Asked By Jeremy McGill | Oct 28 14
3 Answers

What stage to do a blower door test?

I would like to do a test when windows and doors are in.My builder thought when the drywall is done .His concern is the attic space would not be sealed until that time .I am using exterior foam so no interior vapor barrier ....any thoughts?

Asked By bob holodinsky | Nov 3 14
6 Answers

Radon mitigation or ERV for old home with dirt wall basement?

Home was built in 1935 and has 5' dirt and rock walls with a small crawl space above that to the bottom of the upstairs floors which are hard wood when your in the in the basement. Radon measured at 7.7 upstairs above that space. I have a thermopride oil furnace down there also. Radon guys telling me it could cause neg. pressure situation with possible back draft or pull exhaust fumes out of the furnace in the basement area. There is an open walking area the size of a regular sized room where the stairs come down and the furnace and water heater are all easily able to work on

Asked By Scott Van Der Veer | Oct 30 14
1 Answer

Is there a frost risk with underslab inslation?

I was talking with a fellow builder the other day and he asked me if I was worried about frost getting under my slab on grade houses because I use 2" xps insulation under my slabs. I also install 2" xps down four feet vertically along foundation walls. His thoughts were that heat loss from the house often keeps underslabs warmer and frost out.

I am in zone 6.

Your thoughts....

Your thoughts

Asked By kye ford | Nov 1 14
4 Answers

Pipe leak in basement

I am finishing my basement. So far i have installed on the floor a layer of plastic, 1" of XPS insulation taped at the seams, and then a floating subfloor. Yesterday one of my pipes sprung a pinhole leak. The water ran down the wall and got stuck between the plastic and the foam. It ran to the other corner of the basement where my sump pump is located. I can lift up a little bit of the subfloor and insulation in one corner to dry it out but most of it is impossible to move without tearing it out.

Asked By Andrew Sirianni | Oct 31 14
10 Answers

Steel frame home insulation

Climate zone 2
Ventilated Attic
We plan to use 3" polyiso on exterior walls, taped, with an air gap and steel lap siding.
Plan is to use 6-8" of polyiso on attic floor, and also putting HVAC system in conditioned space.
Radiant barrier on purlins with metal roof.

I'm looking for comments, concerns and advice on whether this amount of insulation is adequate?

or any other thoughts on this approach or things to consider with steel construction.


Asked By J B | Oct 28 14
3 Answers

New siding/windows and rigid insulation - need some advice

We have a 46 year old house that we have renovated extensively inside and are now planning a major exterior renovation for the spring. We live in Newfoundland, Canada and are in Zone 6.

Asked By Chris Stoodley | Oct 29 14
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