Greenhouse Repair

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Termites and Carpenter Bees!

      I noticed some non-right angles in the windows of my greenhouse. And then we noticed some little piles of sawdust and that signalled, "Termites!". Loud and clear!

      A termite company confirmed the diagnosis and added something I had never heard of, carpenter bees! They dig a round 3/8 inch hole and make a tunnel for their eggs. If left they can hollow out a timber and just leave the shell!
      It turned out that termites and bees were only part of the problem. The main problem was something I don't understand. I have fences that I built over thirty years ago with redwood posts thirty inches in the ground that are still functioning. These posts are completely encased in concrete.
      I have no idea why I buried the redwood posts for the greenhouse with concrete on two sides only. It makes no sense and I knew better. All of the vertical posts were rotted up to ground level! The non-right angle windows were at the most rotten post which had sunk an inch or two below the original level.

      This is about a life size picture of a bee hole in the edge of a rough redwood, full dimension 2 x 12 shelf. We bit the bullet and accepted the notion that fumigation was in order. In most cases, you take a few precautions and then fumigate. But with a greenhouse, this meant emptying it of plants!

      So we started hauling the plants out and placing them all over the yard! I was afraid we were going to lose many of them but so far we don't seem to have lost much of anything. There are some that are stressed but we have had to resort to handwatering and that isn't very good. I had to butcher the watering system to do this repair.
      This picture shows the south wall where the worst post is. One piece of the plywood sheathing on the outside has been removed.
      I do want to acknowledge that The repair work was done by a contractor, Dick Arnold. I helped mostly with the destruction! That was the easy part.
      We were going to have to remove all the sheathing and cut off the bottom of the posts up to the window, clean the post holes and fill them with concrete, and replace the lower part of the posts.

      Here is the inside of the east wall. The dark area at the bottom of the post is the rotten portion of the post. I don't know what was holding the house up. The plywood sheathing doesn't look too bad in this picture but was thoroughly rotted.
      We removed all the siding and tarpaper and then removed the plywood siding. It was in bad shape too. In most cases all we had to do was kick the plywood and it would fall out on the ground.


      Perhaps I should mention, that we didn't do this all at once or I would have had a heap of timber and glass. We started at the door and worked our way around, clockwise, one wall at a time.
      This picture shows the rotten plywood we kicked out on the south side by the most rotten post. One can also see a bit of the watering system lying on the ground.

      I had some great 4 x 6 beams that were treated with creosote. We cut them in two foot lengths, jacked up the upper 2 x 4 to get a little clearance and sawed off the post. We installed these 4 x 6's temporarily on each side of where the new post was to go, cleaned the hole where the post was, poured concrete in and positioned a Simpson post hanger at the bottom to attach the replacement post. The replaced post can be seen on the left and the newly prepared post position can be seen on the right. The corner posts were not cut off but were flanked on each side with a new post.

      Here is the inside of the east wall after it is fixed The extra post in the middle is where the two nine foot plywood sheathings meet. I should mention that they are treated with the copper based wood preservative. I'm not using that copper based material anywhere where water can contact it and then drop on a plant. It would probably kill the plant.
      Note the now continuous concrete base, the clips in the concrete at the base of the new posts and the straps that are on both sides of the joint between the new posts and the old posts.

      Here is the south wall. There is an extra 4 x 6 suppport which was put there because of the extensive termite damage in this area. The post just to the right of center has extra 2 x 4's on each side because of this. Note that the sag has been taken out of the wall. This area was the most damaged part of the greenhouse. That's apparent in the earlier pictures which showed the sagging!.

      One the west side, there is a deck outside the library. This deck is raised about two feet above ground. Some of the posts showed damage so several extra supports were added while the wall was open.

      The sheathing was continued around the base of the greenhouse. It was then covered with 30# felt tarpaper. We then used a composite siding called Cottage Lap. This was cut in two foot pieces and stapled vertically on the outside wall.

      Here is the outside of the south wall showing the new siding. I think it is going to look pretty good. I will replace the shelf as soon as I can. That is one of my sunny shelves.

      The timer is now mounted in a more convenient place. before it was mounted under the 2 x 12 shelf which ran along the E wall. It was well protected but a bit inconvenient. Now it is more accessible. It is a six position Hardie timer and controls all the watering in the back yard, inside and outside the greenhouse.

      I have five circuits for various parts of the yard. I can individually water the sunny, the shade, and other areas individually.

     

     

  And then you ask, "What happened to all the plants?".

      They are stacked along the back fence and on the deck. You can see the shelf on the ground that will be replaced. You can see the hose needed to water things till the timer is functional.

        Yes, you have to be careful you don't trip on anything!

 

 

 

        Here is another picture of the deck taken from the greenhouse toward the house.

 

 

 

 

 

 

        Here is another picture of the deck taken from the house toward the greenhouse.

 

 

 

 

                                                                        Here is a picture showing the structure of the new benches.

 

 

 

      Here is a picture showing Sauny using a template to arrange the spacing between the redwood 1x2's. I bought a pneumatic brad gun for this job and a wonderful investment it was!

 

 

 

 

      Here is a picture showing Sauny grinning over a bench she just built! It's looking great! I functioned as a silent helper here. Note the pneumatic brad nailer on the bench. This is the best tool I've bought in years!

 

 

 

 

 

 

      Looks good to me. We're almost done with the reconstruction, now for the reconstitution of the display! This first display has an "altar" look to me. It is mostly Tillandsias.

 

 

 

 

 

 


 

        Richard Arnold gave me these four photos he took during his construction.
This first one shows the state of the posts! ---->

 

 

 

 

 

       
This one shows the state of the posts where they met the ground!

 

 

 

                                                                  This one shows the repair.

 

 

 

 

        And here is the final appearance

 

 

 

 


      And we finally finished the roof.

      The roof is made with 15 38" x 78" shower doors. It had gotten into a little "disrepair" and also had a somewhat faulty original design. So we bit the bullet and I hired a man to help. We placed a layer of 1 x 4's under the glass followed by redwood lath spacers and then the top layer of 1 x 4's to sandwich the glass doors in place. The doors are of course tempered so if breakage occurs no large shards come raining down to damage plants or rapt visitors.

      We mounted a sturdy rough redwood 2 x 12 as a new ridge beam and another as a walkway across the top to help if any glass doors need replacement.

      The brush at the lower right of the picture is our overwintering Wisteria which will shortly glow in riotous bloom (wishful thinking?)

      Yes, that's me standing on top of this catwalk!

 


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