Mr Roof Repair» Closed Valley Repair

Temporary Valley Repair

admin — Tue, 28 Feb 2012 21:09:26 +0000

Upon noticing a drip on the outside of the house between the fascia and eaves trough, our services were called in by the homeowner. The roof surface was inspected and shingle deterioration was detected at the end of the valley, exposing the area. After further inspection, it was assessed that the shingle deterioration ran the entire length of the valley, which was incorrectly installed when the home was built in 1998. During construction, there was no ice and valley shield used in the valley and no underlayment installed. Although there was no sign of interior infiltration, there were hints of water stains on the shingles and various areas of the wood underneath. It was also discovered that no starter shingles were used; shingles were cut back to short, and not properly butted together. Temporary measures were taken to stop/slow the leak, though a permanent repair is needed as soon as possible. Gaps and cuts at the ends of the valley shingle were sealed using roof cement. A piece of metal was installed at the bottom valley front to prevent further drips and help the water flow in to the eaves trough properly.

Further to the valley damage, it was determined that two of the attic vents were installed where bathroom exhaust vents should have been used. These will need to be replaced with proper exhaust vents as moisture loss around the shingles is visible and can lead to wood rot. An attic vent will also need to be installed near the front dormer as there are signs of shingle stress due to moisture build up from the interior of the home. The life expectancy of the remainder of the roof is approximately 3 to 4 more years before roof replacement should be considered.

Permanent Valley Repair

admin — Tue, 24 May 2011 21:00:03 +0000

Problem : Leaking Valley
Solution: In order to repair the valley, we had to remov one shingle on either side of the 16 foot valley. We then installed a new ice and water shield on each side of the valley. We then used roof cement to seal both sides of the water proof membrane and then installed new shingles using roof cement and nails for a closed valley method.

Roof Needing Vally Repair

admin — Wed, 09 Mar 2011 21:00:18 +0000

Roof valley showed wear we needed to immediately repair by cutting back asphalt shingles and sealing the valley with caulking.

Please note, this was only temporary and due to expansion and contraction of the shingles the sealant will eventually fail causing roof leaks a permanent solution would be to add metal flashing to the valley when we redo the roof.

Common Problems With Closed Valleys

admin — Wed, 09 Mar 2011 11:00:16 +0000

Temporary roof repair was done with roof cement and membrane half way up valley 6’ long and 1’ wide.

The original valley was installed too tight and stretched and ripped with the different weather conditions and now it’s brittle and falling apart.

The valley is located on the right side of the home above the front door. The valley was a flat roof membrane valley. We also found a crack in the brick work 6” on right hand side of window and valley was 4’ away from the window.

Temporary Valley Repair

admin — Tue, 08 Mar 2011 21:00:05 +0000

We repaired the roof 15 feet from bottom by placing roof cement and fabric in the valley to avoid any further roof damage.

We were able to put an ice and water shield underneath the bottom of the front roof above the awning and roof cemented over the top.

Unfortunately, this is only a temorary valley repair and the roof needs to be replaced.

Cracked Valley Repair

admin — Tue, 08 Mar 2011 13:00:39 +0000

Problem: Hole and crack in the valley

Temporary Solution: To repair the crak and hole in the valley we placed a metal flashing strip and sealed it. We performed a roof tune up. We sealed all missing fasteners and sealed around the vents and stack pipes. We also sealed the counter flashing above the garage. Quote for permanent valley repair solution to follow.

The importance of adequate ventilation

admin — Thu, 19 Nov 2009 21:06:48 +0000

This past week we have been fielding a number of house calls where there is little or no roof top or soffit ventilation.

When you do not have proper ventilation there is no where for fresh air to come in, or hot humid air rising in your attic to go. This makes for a very unhealthy roof system. The result is that the roof shingles fail prematurely as the air tries to seep out anywhere it can. This means the air seeps between roof deck boards up under shingles and causes bubbling shingles.
To avoid premature roof shingle wear please ensure you have adequate ventilation.

Another significant impact of improper venting is Ice damming in winter!
Venting maintains uniform roof sheathing temperature, which reduces the likelihood that ice dams will form. Without good ventilation, warm spots form near the eaves that melt snow, which can later re-freeze into a dam. More melting snow can build up behind the ice dam and damage the home.