Solar Powered Roof Fans in York, ME

I was recently contacted by a woman from Georgia that had found me on Angie’s List about helping alleviate unbearable summer heat in the upstairs bedrooms of her family’s cottage on York Beach, Maine. The cottage has been in the family for generations and she recalled lying in sweat as a kid, trying to get to sleep after the upstairs had been collecting heat all day long. She asked what suggestions I had to help the comfort levels of renting guests. I suggested the good ‘ole wind turbine. Why not?

Well, when I was researching the wind turbines to calculate the approximate cost of the project I decided to dig a little deeper and see how much air these things can really move, knowing the massive task it was needed to do. It turns out that some of them don’t spin that well at all, and the ones that do don’t move a ton of air.

Next, I came across the solar powered roof fans. It seems that there is much price fluctuation ranging from $90 to $500. Many reviews claimed that the more affordable ones felt flimsy and cheap. The last thing I want is to spend a client’s money and for them to not be happy with the performance of the product over a long period of time. I searched for highest rated solar roof fans and came across the U.S. Sunlight model 9910TR. They were about $300 a piece and eligible for a tax credit of up to 30% of the price of the units, before installation. Once shipped to my home, I took it out of the box to familiarize myself before installation day. I was amazed at how well it met the main secondary criteria: It was so quiet that I could hardly even tell it was running while I held in my hands up to the sun.

We decided to install two: One in the largest bedroom; and one for the 2 other bedrooms to share. Here in New England, you’ll want to install them on either a south or west facing roof plane. We got lucky and have a roof plane that faces due southwest. Once installed, I waited until about 1:00 pm to adjust the rotation and tilt of the solar panel to about dead perpendicular to the sun.

From the inside, drive a screw through the roof for locating on the outside, and then protect from the mess with a drop cloth.

The fans seem to work very well, not requiring any wiring of any sort. During the heat of the day, I could easily feel the air blowing on me from the fans while I was working on the roof. They are sun activated- so when the sun hits the solar panel, the fan moves. When it’s overcast or cloudy, it slows. For our purposes, we knew it wasn’t going to be like central a/c, but wanted to keep the bedrooms tucked up under the roof from ever getting so darn hot that they can’t cool down.

Strip back the shingles and set aside for re-use, then cut the hole with a jig saw. Notice the drop cloth caught the debris.

I got the both of them installed in one long day. We may opt to install an optional thermal switch that ensures the unit runs only when the attic temperature hits 80 degrees. This will prevent the fan from running during the winter, thus prolonging the life of the fan. I’ll keep you posted as I hear feedback from the clients.

 

 

 

 

This is the final product! The shingles were a little brittle, and being right on the coast we decided to glue them back down as well as nailing.

 

 

 

 

 

 

From the inside.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PVC Window Trim Replacement

An overwheleming majority of New England homes will have to undergo some sort of rotten exterior trim replacement at some point. One of the most common needs is replacing rotten window casings and sill noses, especially on the north and east faces of a home. This article aims to instruct how to replace your exterior window trim with glued and screwed pvc window trim, in a manner that will withstand the elements.

This Portsmouth home needed rotten exterior trim replaced with something that would hold up, being just a few feet from the river.

This home in Portsmouth, NH was in need of these repairs. Although I have no photos, the first thing to be done is remove the existing window casings and sill nose, gently, so as to not destroy the existing jambs, etc.. I use my Fein reciprocating saw to slice through these components, for easier removal. The sill nose must be trimmed flush with the jambs.

After measuring for the new trim and cutting and labeling the new pieces, it’s time to begin the assembly. The first thing I do is to assemble the bottom of each side window casing to the sill nose. In this case the bevel angle is 15 degrees. The glue we use for pvc welding sets up relatively quickly (in about 5 minutes), so we’ll want to start our screws before applying the glue. Because the sill nose (made by Royal Moldings) is only about 1-1/8″ thick, we can screw from the underside of the nosing into the casing. The rest of the pvc trim is Azek brand.

Make sure not to use so much glue that it oozes out.

 

 

 

 

 

This pvc glue also fits nicely into a carpenter’s tool pouch when on a ladder.

 

 

 

 

 

 

This is the solvent we use for cleaning off any excess glue. Clean it quickly because the glue will “melt” into the face of the trim after a few moments. This is also the cleaner we use for wiping down the trim after final installation, cleaning our dirty paw prints off of it!

 

 

 

 

 

 

 

Window sill and bottom of casings.

 

 

 

 

 

Predrilling the pockets.

For screwing the tops of the casings together, we rely on what’s called a “Kreg” brand pocket screwing kit from the back side of the casings. We first drill the pocket holes for the screws on the back of the side casings. Next, we make sure we’re using the right trims in the right spots, that’s why we mark such as “TR” to mean Top Right corner of the window. Now start the screws into their pocket holes before applying glue. Glue it up, and then use the special clamp and a backer block to protect the face of the trim during clamping. Screw it together and that one’s done!

We now have a pre-assembled window trim package ready to install.

 

 

 

 

 

 

 

 

 

Next, we must prep the face of the window jambs and sill nose before applying the new trim. We use Lexel brand adhesive caulk exclusively for anything that has to hold up to the elements. It has tremendous adhesion, uv resistance, and flexibility. The flexibility is key. You don’t want to use an epoxy paste or

Notice we don’t pre-paint the sill. We want the adhesive and the new trim to bond to solid wood, not to a layer of paint or primer.

anything that won’t move and expand and contract with the movement of the vinyl and wood components. We apply this liberally to the sill nose and bottom portion of the jambs.

 

 

By making sure that there is total caulking squeeze out along the entire seam, we can ensure that the joint will keep water out.

It’s time to install the trim. We use screws for greater holding power to stay bonded tight to the wood. The screws we use are made for pvc trim. They use a special driver to recess the screws into the face of the trim. Then you gently tap a matching pvc plug into the hole, and the hole has vanished! We clean up all the excess caulking using mineral spirits and a clean rag. Remember not to leave solvent soaked rags bunched up

These are the plugs.

in the sun or high heat (like an attic during the summer). The rags will spontaneously combust. Instead, drape the wet rags to dry immediately after use.

Wait, where did the plugs go?

 

 

 

 

 

 

 

 

This is the final product.

Once all the plugs are in, we wipe down the trim with the Goof Off, and then install the storm window and it’s complete. The total time for this project (an easy first story window) is under 3 hours. The total cost for this window was around $200. In this case, the critical joint between the new sill nose and the existing sill is hidden from the majority of the elements behind the storm window. If there is no storm window, I recommend checking the integrity of this joint and re-caulking if necessary every few years, just to err on the side of caution. I warranty this project for ten years, but you can expect it to last much longer.

By John Bradshaw