Robert Evans' Jr Blog

Roofing Valleys Correctly

Posted by Robert Evans on Feb 20, 2019 10:59:42 AM

Welcome to Robert Evans Jr. Contracting

Weaved Valley

Depending on your roof design you may or may not have valleys. A Valley is where 2 roof lines come together. Here is a picture of Robert Evans JR. Contracting Inc. installing a Weaved "Closed valley".  Closed valleys are those where shingles on one or both sides of the roof extend across the valley onto the adjacent roof slope. There is two kinds of closed valleys: cut valleys, which are less expensive to install {due to less waste in material and quicker labor install} and are the most common, and there are woven valleys as you see above in this picture. When Installing the woven method, shingles from both roof slopes run through onto the adjacent slope, alternating with each course. This is done differently with different types of roofing shingles depending on 3-tab, thickness, archtectural type shingles. Woven valleys is not recommended to be installed on a roof pitch less than 4:12. 

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Chimney Flashing

Posted by Robert Evans on Oct 13, 2014 2:59:00 PM

Chimney flashing

Chimney Flashing is a vital part of your roof. Robert Evans Jr. Contracting Inc. gets more calls about leaks around chimneys than about any other problem. And more often than not, the culprit is the flashing, the metal that keeps the intersection between the chimney and roof watertight.

Proper flashing around chimney includeds 2 layers. The first is called step flashing: L-shaped aluminum are woven into the shingle courses and lapped up the side of the chimney. Next comes the counterflashing: A second layer of metal usaully consisting of either Lead or Copper. {Most commonly used is Lead} It is embedded in the chimney mortar joints and folded down to cover the top of the step flashing

The corners are especially vulnerable. We usaully cut and bend the lead around the corner. Even with a good quality installation, this leaves one small spot that should be sealed with a high-quality Caulking such as Geocel.

The type of metal used for flashing depends on where you live. Aluminum and galvanized steel are sometimes used. Copper is the longest lived, but because its so expensive, we see it only on higher end jobs. Another advantage to copper is that the corners can be soldered for a watertight connection.

When a chimney is located at the bottom of a roof slope, a cricket should always be installed, a small diversion roof that prevents water from pooling and ponding behind chimney and eventually leading to seeping through roof into your house.

Schedule your FREE Roofing Assessment Today!

Because chimneys are such a potential trouble spot, inspect them once a year or two for loose or missing flashing and cracks in the masonry, or call on Robert Evans Jr. Contracting at 508-877-3500 and have one of our professionals do the inspection for you.  We also recommend that our customers waterproof their brick chimneys every few years with a brick sealer that can be applied with a garden sprayer. This is a great way to keep water from seeping into the brick.

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Roof Pipe flange replacement

Posted by Robert Evans on Sep 10, 2014 1:27:00 PM

Old worn pipe flange

Roof Pipe flange

This Homeowner in Natick Ma. noticed her ceiling inside one of her closets had a wet water stain. She called Robert Evans Jr. Contracting to come look at the situation. After a quick inspection to the roof area above the leak inside the house, we noticed the rubber gasket around the top of a pipe flange was worn away causing it too allow water inside the house. We removed the old worn pipe flange and installed a new 3" inch pipe flange. Sometimes the pipe flanges dont last aslong as the life of a roof and needs to be replaced. Have your roof inspected today to avoid such problems.

Schedule your FREE Roofing Assessment Today!

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Rotted roof boards

Posted by Robert Evans on Sep 9, 2014 1:18:00 PM

Rotted Roof Boards

Welcome to Robert Evans Jr. Contracting

When Homeowners let there roof go without inspection or repair , big problems can arise causing a costly roof replacement become even more costly, sometimes doubling the cost !! If your roof has not been inspected within the last 5 years, please contact us for a free roof evaluation.

Schedule your FREE Roofing Assessment Today!

In alot of cases Rotted roof boards go unseen and not noticed till the roof starts leaking inside the house, causing expensive repairs, structural damage, termites. Making your average roof cost double in cost !!

$300 Roofing Coupon

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Roof Snow & Ice Dam Removal Service

Posted by Robert Evans on Dec 16, 2013 10:58:00 AM

Roof Snow & Ice Dam Removal Service
 
Robert Evans Jr Contracting not only repairs and shingles roofs, we also help protect roofs from damage caused by the Harsh New England winters. Robert Evans Jr Contracting provides roof snow removal.  If an ice dam is present, Have the snow above it removed helping the ice dam melt away quicker. 
 
Let Robert Evans Jr Contracting take care of your roof snow safely.  Call us at 508-877-3500 and we can provide a service that will protect your roof.
 
 
What You Need to Know About Ice Dam
 
 
What is an Ice Dam?
 
Process of Ice Dam FormationWhen snow accumulates on a roof, a cycle of melting and refreezing occurs.  The warmer your attic is, the more melting will occur.  Normally, the resulting water would flow off the edge of the roof.  Under certain conditions however, when the outside air temperature is very low, the edge of the roof stays below freezing and the water refreezes when it gets to that point.  This ice then forms a line or "dam," at the edge of the roof.  As more snow melts, it also refreezes when it gets to the "ice dam," and the dam keeps getting bigger.
 
Once the ice dam gets too large, the melted snow that pools up behind it can force its way back under the shingles breaking the seal and the water finds its way into your home causing damage to your ceilings and walls.
 
How to Prevent Ice Dams
 
A good way to prevent ice dams is to lower your attic temperature by installing additional insulation in your attic area.  You can do this by laying out additional layers of insulation across the existing insulation or by having additional insulation blown in.  However, you do need to be careful not to diminish your air return by over insulating.  Without  adequate ventilation through your soffits, heat can build up regardless of the amount of insulation present in your attic.  Make sure your attic vents are not covered with insulation or any other material so that the air moves freely through the soffit vents.  The usual recommendation for venting is 1 square foot of vent for every 150 feet of attic floor area.  If your attic lacks in ventilation, you may need to consider installing ridge vent on the peaks of your roof or cut in additional louvers.  Also, be sure and check that weather-stripping on attic stairways or hatchways are providing a good seal to keep warmth out of the attic. 
 
A common mistake made by some homeowners, is attempting to melt the snow on the roof by leaving their hatchways open to the attic.   The thought behind this is letting the heat from your home up into the attic.  This is actually the worst thing a homeowner could do.  Not only will you be throwing energy dollars away, you are actually contributing to the formation of an ice dam due to the thaw and freezing winter conditions.  As a homeowner, you should find some comfort in seeing standing snow on the roof opposed to ice dams.  Standing snow proves adequate ventilation and insulation is present in your attic.   
 
 
If you have questions or concerns regarding insulation or ventilation in your attic contact Robert Evans Jr Contracting.  We would be more than happy to assist you!
 
 
                                         Signs You May Have an Ice Dam
The appearance of water damage on ceilings or exterior walls may indicate that an ice dam has formed and water has forced it's way into your attic.  Water damage is a serious issue.  It can lead to rotting and mold growth which can cause serious health problems with people living in the home. 
 
To prevent costly interior damage caused by ice dams call Robert Evans Jr Contracting.  We will remove your roof snow too help melt away the ice that will lead to water damage.  Robert Evans Jr Contracting does not advise you to attempt ice dam removal yourself. Robert Evans Jr. Contracting is equipped with quality equipment and OSHA approved protection. 
 
 
The Solution
 
Your best defense against ice dams is removing snow off the roof to prevent refreezing after melting.  If an ice dam has formed, call Robert Evans Jr Contracting  to take care of the problem before it becomes a "bigger" problem. 
 
www.Robertevansjrcontracting.com can safely remove snow from your roof using our expandable roof rake.  If ice is present, we safely remove the ice from your roof without damage to gutters or shingles.  Using hammers or hatchets to remove ice can cause more damage to your roof. 
Schedule your FREE Roofing Assessment Today!

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