Friday, November 9, 2012

Replace your decking

Hello again from Michigan ... The deck building season is quickly coming to an end, so we have a little more time to update our blog.

The growing trend of deck "Re-covers"

 A topic I have been meaning to write about is Re-covers. Because we see a lot of companies recommending "Re-covers" on decks that need to be completely torn down. Especially when your considering a synthetic material that has a 25 year warranty. You could be asking for the old deck frame to last 40-60 years.

 Deck builders in Michigan call them "Re-covers"  This is where you have a good deck frame but the decking/railings needs to be replaced because of aesthetics or rot. Mainly for budget purposes and in some cases the old framing is better wood then the new treated wood we get now. Usually the frame should be no older then 20 years and at most 30 years in my opinion.

When we are on estimates where customers have an existing deck that might be a candidate for a "Re-cover"  We do a extensive inspection of the support posts, ledger board, spans of the framing members, the condition of the hardware and flashing.

This should be done with the intent to get the full lifespan out of the new "Re-cover materials. I have seen projects that were "Re-covers" that have gone bad within 2-3 years after being done because there was not careful consideration done with inspection/planning of the "Re-cover" and how the framing materials will hold up and how the old deck was built. This can be a costly mistake for a contractor/homeowner

1) Inspect the support posts:

 Check for rot at grade level or just below grade level on deck where the support post are sunk in the ground. The support post length or upwards span can be an issue with older decks, there was not a lot information on the allowances for 4x4, 4x6, and 6x6 post height. In my opinion 4x4 support posts should not be more then 4' above grade. We use 6x6 support posts on all of our new decks. Check the post/beam attachment - on many old decks the beams are bolted to the sides of the support posts which is frowned upon now unless your using special hardware for that type of connection. Nowadays the code really leans towards the beams bearing on the support posts by either notched into or sitting directly on top of the posts.

2) Inspect the  ledger board:

Make sure the ledger is properly bolted to the house rim with either lag bolts or carriage bolts. Safely you should have 1/2 galvanized bolts every 12". On the old deck watch out for cement anchors bolted to a brick veneer that is not code and should be addressed. Note: - no longer in the code are you allowed to attach a ledger through brick veneer even with the proper bolts. The other thing to check on the ledger is proper flashing, this is usually never done. There is different techniques for different exterior wall materials, brick and stucco being the most difficult to do properly and siding being the easiest.

3) Inspect the framing spans:

The joist span is the first thing I look for to have proper decking size. Most all 5/4 decking is rated 16" on center joist framing at 90 degrees or perpendicular to the joists. A lot of decks in our area have either 24" on center joist framing and they used 2x decking or they have 16" on center joists with 2x decking running on 45 degree angle. With both examples re-covering with 5/4 decking cannot be done unless you add extra framing or you stick with 2x decking. Remember most synthetic decking is 5/4 and rated for max span of 16" on center joist framing. Another thing to watch out for is the spans of the joists/beams a good reference guide for treated wood is the DCA6.

4) Inspect the hardware/joist flashing:

This is an obvious one but you should check and your bolts and hangers for corrosion and proper installation. We also flash all the tops of the old deck joist with a peal and stick membrane. This will help give longer life to the old joist and also help with any water damage through the old nail penetrations in the joist.

One other thing I forgot to mention is the condition of the footings, this is usually evident by how level the deck is. In Michigan we have a 42" frost depth so if your deck is raised up and out of level in areas,  your footings have heaved from the frost. Two main points with pier or post hole deck footings is proper depth below the frost line for your area, and make sure you bell shape your footings with the bottom being the widest and top being the narrowest this taper angle will not allow the frost to catch a footing and pull it up. Another issues you might see in older decks is sinking footings/posts this is usually due to - to small of footing width the DCA6 is another good place to look for proper footing size for your deck.

Here is a recent Timber Tech XLM re-cover we did in Rochester Hills MI

Here you can see the peal and stick deck flashing membrane that covers the old deck joist, and then we start installing the PVC decking with hidden fasteners.

Once the Timber Tech XLM Harvest Bronze decking is installed we will move on to the railings

The railings are Timber Tech Radiance rail sandridge and mountain cedar colors, with post cap lights

Here you can see the complete fastener free surface with the Cortex plugs that are used on this deck

Here are a few final pictures

Thanks for reading

Thursday, November 8, 2012

Michigan deck builders customer reviews

Here is a link to our GuildQuality customer review site, our goal is to exceed the clients expectations, and have a 100% customer satisfaction !

Monday, September 3, 2012

Oakland Township MI composite deck

Hello again .. we have really been behind in updating our blog, I have to apologize !

 I am hoping to go back to our weekly post.

Today we are going to look at a Timber Tech Evolutions cap composite deck we built last year. Here is the framing plan on the left along with a 3D design. We matched the old deck layout except where the old deck had a step down octagon. The homeowner wanted the new deck all on the same level so we did a two tone picture frame border and we wrapped the border around the octagon to add a design focal point to the octagon area on one level. The old deck was cedar and needed to be updated so the client wanted a synthetic deck with much lower maintenance then the cedar deck. We recommended Timber Tech Evolutions for a high grade cap composite that is durable, Evolutions has a 25 year fade and stain warranty which is outstanding.

Here in the picture on the right we just finished up installing the Timber Tech Evolutions Teak decking and the two tone Teak/Walnut border and octagon inlay. The border/inlay really gives the deck some interest and the octagon inlay gives a distinction to this area which was a step down in the old deck. The decking is installed with Timber Tech Concealoc hidden fastening clips, and the borders are screwed down with color matching stainless steel Headcotes.

Once we finish the decking/borders we move onto the railing post which we cut out holes to set the treated 4x4 posts thru and then we attach with 3) 8" Thrulok bolts. You can see this in the small picture above where two members of the crew are laying out and cutting in posts. Once the 4x4 rail support posts are install we move to installing the triple stack fascia. Here in the picture on the right the 4x4 post and the Radiance rail sleeves have been installed along with the triple stack fascia. The triple stack fascia is our standard fascia detail that we use to hide all the frame work it start just below the beam level and stacks out from there.

This hides all the frame work except the posts. The other main detail is that the border cover over the fascia so no water will enter the frame/fascia gap which is a hugely important detail that most all other builders leave out.

One last detail we do is to trim out the flashing on the deck. The deck flashing is cut into the brick which had to be above the decking level to hit a mortar joint. We covered the flashing with a rip off a XLM Walnut Groove deck board again to hide the Z flashing that was cut into the brick veneer above the decking level to protect the ledger from water intrusion. 
Here we move onto the stairs and railings, the treads and risers are all screwed down with the Headcotes. The railings are Timber Tech Radiance rail in the Traditional Walnut color with Bronze colored Deckorators Aluminum balusters, we also used their decorative centerpieces. With baskets on each side of the centerpiece with a center layout for each rail section.

The last step was installing the Trex low voltage lighting on the rail

All finished up !

 Thanks for reading !


Saturday, February 11, 2012

Lake Orion MI Cap-Composite Project

Hello again,

Today we are going to review a Timber Tech Evolutions cap composite deck we built last year. The colors are rosewood evolutions decking with white Timber Tech radiance rail express, and white Koma pvc fascia.

There was an existing cedar deck that was about 25-30 years old that was in bad shape. So we tore down the old deck, and did a re-design of the deck. The existing deck was just one big deck connecting the two door walls access points of the home, one was from the kitchen area and one from the master bedroom. The new design separated the deck into two different deck spaces. One large main deck and one small deck off the master bedroom with no stairs.

I could not find the before pictures but here is one right after the tear down, first the old deck was attached to the house which has wood lap siding. There wasn't any flashing protecting the the ledger board attachment. You can see why the ledger connection needs to be flashed, the rim joist of the house is completely rotted out from lack of flashing allow water infiltration.

Once we replaced all the rotted wood and installed the proper flashing we went on to the rest of the deck building.
Working on the framing below and then on to the decking/rails

The decking is done in the picture on the right you can see the decking is running on alternate 45 degree patterns across the deck with two different seam board locations. From there we went on to the railings and the privacy fence/rail section. The railings are brand new railings style from Timber Tech call Radiance Rail Express. The Express radiance rail is a more affordable railing options that installs much faster than the Radiance rail. The privacy fence/rail is just lattice top fencing. Lastly on to the stairs, and the triple stack fascia.

Timber Tech Radiance rail express

The small deck


Thank you for reading !  Michigan deck builders