
And quite relieved. It briefly looked like we were going to run out of weather...
Renovating a Victorian house on Cleveland's West Side to LEED for Homes standards, using 203k financing.
As we've blogged in the past, we are installing cellulose insulation in all exterior walls and in the attic ceiling. This has been quite a saga. Back in the early summer, we discussed with our Energy Rater that we needed an infrared scan done to assess the condition of the insulation. This was required by Energy Star, which says we need "Class 1 grade" insulation to get our HERS rating. We don't know exactly what Class 1 is, but anyway. So in May, we paid an infrared camera operator to image our walls ($250). The results showed that the walls were effectively devoid of insulation, which ran counter to evidence that some type of insulation had been blown into the walls previously as part of a subsidized weatherization program. This surprised us, but we took the infrared results at face value and budgeted for removal of any existing faulty insulation and installation of entirely new cellulose.
Flash forward to this fall, when electrical began and walls were being opened. Each wall we saw appeared to be stuffed to the gills with old newspaper. It was like being in a ticker tape parade every time they opened a wall. So what gave?? Clearly the infrared scan had been bogus. Meanwhile, the insulator had reported for duty and begun working. He, too, noticed the copious amounts of apparently well installed insulation in the walls. He decided to install around this to fill any gaps. Angrily, we confronted our Energy Rater with the facts. He agreed to give us a free scan to check the new insulator's progress. Ugh.
A lot has happened in the last month or so, although the progress seems glacial to us since at this point we are itching to move in. We have a lot to catch up on blog-wise. So watch out for a spate of new posts.
Ductwork.
We're putting in an Energy Recovery Ventilator (ERV). Since we have steam heat, this is the only ductwork being installed in the house. The ERV will be installed in a small room off the attic. The supply is located at the bottom of the attic stairs on the 2nd floor. The returns are located in the bathroom, kitchen and media room. We struggled a lot with whether to buy an ERV or an HRV. We got advice from our Energy Rater, an independent rater in southern Ohio and our HVAC subcontractor that the ERV was the better option because it deals with humidity, while HRV's deal only with heat recovery, so it's more efficient. This will allow the house to be more humid in the winter, when the air is dry; and less humid in the summer. This works well for the Cleveland climate. The ERV itself hasn't shown up yet, but here are some exciting photos of the ductwork to tide you over
Lets start off with a few photos of the house...
Front view (dig the porch!) Dining room, Fireplace, Master Bedroom, Wonderful odd lavatory, and lovely, ferny backyard.
We think it's a beautiful old thing, and can't wait to see our own furniture and clutter in it.
Updates on Justin's previous posts:
We're probably going to use dense-pack cellulose for our insulation. There's some in the wall already from a free city program, and going in with new cellulose will get us within our HERS target range, and avoid the expense of cleaning it out to blow in foam. It's disappointing, however, that we're going to max out at r-13 or so.
We though we were going to have to take down the interior walls to let George inspect our insulation installation. There was no way for us to get full credit for the insulation we'd blow in otherwise, which would keep us from getting our HERS score, and our LEED rating, by extension. We are able to avoid this by paying someone to thermally image the walls with an infrared camera to inspect the heat transfer through the walls, which would let George see where the insulation was lacking, and have the installer correct it.
The program demands that no more than 10% of any cavity be void, meaning our insulation installer really has to know what he's doing. This is important – the insulation already in the walls was so poorly installed that the walls are essentially uninsulated. The studs and lath were even visible in the infrared photos...
We may still switch to foam. Tripolymer is very affordable, and having walls come in at r-13, r-15 max is not sitting well with us. Even though most heat loss/gain is through our roof (which we can get up to r-44, nice...) it just doesn't feel right.
So, our HERS score: we're coming it at 82, and the max we can get is 85. Which is adequate. We're disappointed that our house won't be more high performing, but we're out of reasonable options.
More to come soon!