Robert Evans' Jr Blog

Window Leaks

Posted by Robert Evans on Dec 12, 2013 1:22:00 PM

Window Leaks


1: Very complex window layout and no overhangs.
As you can see above, the window openings in this house are many and complex. There are tall windows, arched windows, bay windows. And this would be fine, providing they were installed with all the bells and whistles (flashings, sealants) that prevent water from leaking in. But the sections of wall that have no overhangs may present a problem. Typically we homeowners think the main functions of overhangs are to create shade and drain water off the roof. But they also keep wind-driven rainwater from pushing into the walls through the windows. If you're ever in the position to design a house or an addition to your house, it's wise to include overhangs.

2: Angled fascia.
With the fascia (the horizontal board above the window) angled inward, it doesn't take too much building knowledge to see that water from the roof will be directed right toward this window. The sloppy flashing (extra-strong insulating material between the window and house framing) gives water even more of an opportunity to seep in. Which leads us to...


3: Poorly installed flashing.
To keep water from getting inside your walls and causing all kinds of trouble, there must be a good integration between the window, the building paper (bottom right and left) and the flashing (the stronger material around the arch). In the picture above, the flashing is cobbled together and each break in its surface creates an opportunity for water to enter. In a correct installation, a stretchable flashing is used in one continuous piece, as opposed to patches.

4: Misuse of materials.
In this case, house wrap (building paper) is being used as the window flashing. For superior water protection, the carpenter should have used specially made flashing material. It's stronger and does a better job around windows than the house wrap, which goes behind the home's siding or brick.


5: No flashing at all.
We have to hope this window was just set into place temporarily and will be removed later so that flashing tape can be installed properly. If flashing tape isn't installed the right way, water will get behind whatever kind of siding is put up (and water always gets behind siding) and then drip behind the mounting flange (the outermost edge of this window frame) and into the walls. It's a good idea to use caulking to seal your windows, in addition to flashing tape.


6: Missing sealant, wrong type of nails.
You can see some sealant (caulk) behind the mounting flange on this window, but not enough. There should be a continuous bead of sealant behind the flange, and it should ooze out of any unfilled nail holes. And about those nails: They are obviously not corrosion-resistant (which is required), as you can already see the rust coming on. Plus, they were shot out of a nail gun (as evidenced by the little orange tab on the left nail). According to many experts, this is not a good practice, as window flanges require a precise fastener pressure and that is hard to control with a tool powered by compressed air.

7: Not shingle style.
If you want to know the secret to moisture management it is this: shingle style. That means that the top layers of a surface overlap the bottom layers. That allows gravity to move water down and away from the structure. If you violate this basic principle and put a top layer behind a bottom layer, you're inviting water to come right in. In the photo above, the white building paper above the window should be lapping over the black flashing. It's possible that with super-wide overhangs, and not much rain and not much wind, this penetration may not leak. But bring on some wind-driven rain and you've got trouble.

Kathy Price-Robinson

8: Cracked glazing putty.
This is easily corrected. Just pry it out and redo it. If not, moisture will continue to deteriorate this wood frame.

9: Lack of a paint seal.
Here's something you may not know: When painting the exterior molding that holds a window into place, the paint should slightly overlap onto the glass. This may seem shocking as we typically do everything possible not to get paint on our windows. But the continuous membrane of the paint from the molding onto the glass creates a seal that is actually part of a moisture protection strategy. Professional painters and savvy DIYers already know this.

For more information on proper window installation, consult the industry bible on this topic, known as ASTM E 2112. ASTM stands for American Society for Testing and Materials, but now it is an international standards organization.

Tags: roofs, Architectural shingles, ice dams, ice and water barrier, commercial roof leaks, Grace Ice and water Barrier, old skylights, harvey replacement windows

Velux Skylights

Posted by Robert Evans on Nov 4, 2013 7:45:00 AM

photo (17)Velux SkylightGrace ice and water shield

3 Layers of water protection-Deck

Now with the new Deck Seal technologly

  1. Introducing a third layer of water protection for Velux Skylights. The pre-attached deck seal on all deck mounted skylights provides a seal between the frame and roof deck for a leak-proof installation.
  2. Adhesive underlayment for secondary water protection against the harshest weather conditions.
  3. Engineered flashing for easy installation and primary water proteciton

3 Layers of water protection-Curb

  1. A pre-attached skylight gasket provides a tight seal between a standard site-built curb and the skylight that caps off a leak-proof installation for curb mounted skylights. Robert Evans contracting
  2. Adhesive underlayment for secondary water protection against the harshest weather conditions for standard site-built curbs.
  3. Egineered flashing for easy installation and primary water protection.

* Visit for complete information. And www.Robertevansjrcontracting.comClick me



Tags: roofing metrowest, Certainteed Landmark, ice and water barrier, Grace Ice and water Barrier, Skylight leaks, Velux skylights, roof installation, cracked skylight, Wasco skylites, old skylights

Low slope roofing

Posted by Robert Evans on Oct 11, 2013 8:16:00 AM

This Framingham Resident called on Robert Evans Contracting, a registered Firestone Contractor, to roof his low slope roof properly. This low slope section of roof had a pitch of 2. All roofs applied to a low slope deck ( 2" to below 4" per foot ) are recommeded to have a rubber roof applied to it, because water drains slowly from these slopes, there is a greater chance of water back-up and damage from ice-dams.

This roof, we removed the asphalt shingles from the Low slope roofing and installed a mechanically fastened 1/2" inch fiberboard substrate to roof deck, then applied a fully adhered .060 rubber membrane to substrate. Flashing rubber up under sloped shingled roof. We flashed roof edging with .040 gauge aluminum roof edging to match drip edge. Installing a 6" inch cover tape to top of aluminum to seal. All roofs installed by Robert Evans Jr. Contracting comes complete with a 10 yr. Labor warranty. And even longer Manufactures warranty depending on what type of roofing and product being installed.Schedule your FREE Roofing Assessment Today!$300 Roofing CouponLow slope roofing

Tags: EPDM, Architectural shingles, ice and water barrier, Grace Ice and water Barrier, roof leaks, firestone contractor, firestone rubber roof, drainage

Ice and water barrier

Posted by Robert Evans on Aug 27, 2013 12:31:00 PM

Home owner in Wellesley was have ice damming issues last winter and was proactive this year and getting it fixed before winter. Roof and wall were stripped and ice and water barrier installed and then new Certainteed shingles installed.IMG 2791MA30907953 0004 resized 600 

Tags: certainteed roof, Certainteed Lifetime roof, Architectural shingles, ice dams, ice dam removal, Grace Ice and water Barrier

Robert Evans Jr Contracting

Posted by Robert Evans on Jan 18, 2013 9:54:00 AM

$300 Roofing Coupon


Tags: EPDM, Certainteed Independence Shangle AR, Certainteed Lifetime roof, Architectural shingles, Grace Ice and water Barrier, attic ventilation, firestone rubber roof

Copper Window

Posted by Robert Evans on Sep 26, 2012 5:18:00 PM

Fabricate and install a copper window well to go along with new Certainteed Landmark shingle (1) resized 600Click me

Tags: certainteed roof, Certainteed Lifetime roof, Architectural shingles, Certainteed Landmark, ice and water barrier, Grace Ice and water Barrier, cobra ridge vent, copper, copper roof

Satisfied Customer

Posted by Robert Evans on Aug 25, 2012 6:30:00 PM

Hi Dan,
Thanks for another job well done on the roof. I will continue to share my experience with Evans Contracting with my colleagues at our expanding MathWorks campus to hopefully drive more businesses for you. My father-in-law Leo would like to get a receipt from Evans Contracting for his record. Could you kindly send me one when you are free?
A e-mail from a loyal customer on a recent roof in Randolph. A testimony on Dan's hard work.

Tags: roofs, certainteed roof, Certainteed Lifetime roof, Architectural shingles, ice and water barrier, Grace Ice and water Barrier, roof installation, Roof color

Large Commericial Asphalt Shingled Roof

Posted by Robert Evans on May 10, 2012 12:17:00 PM

Walpole Front entry strippeddescribe the imagedescribe the imageWalpole front entry shotWalpole truck shotWalpole side entry shotNew Pond Village was a Recently completed large Retirement home roof in Walpole Ma. Done in phases. Last year we completed Phase 1 of the retirement home that consisted of "A" & "B" buildings {appox. 475 Sq. }. This 3 story complex required High safety standards including safety harness for every installer on roof surface, hard hats and safety goggles for ground workers and spotters. Each section of roof being worked on was caution taped on ground level and a safety spotter for the safety of elderly residents entering and leaving building. Phase 2 of the retirement home was completed May of this year 2012. Phase 2 consisted of Building "C" {approx. 275 Sq}. This buiding presented some challenges of a main front entry way with heavy traffic of residents coming and going. Safety was top priority on this section. The crew was highly cautious of falling debris around entry way and to maintain the area swept clean of all nails and debris. Phase 3 ,Remaining Buildings to be done next year.Walpole 1walpole 2

Tags: roofs, Certainteed Lifetime roof, Architectural shingles, Grace Ice and water Barrier, Roof Safety, New Pond Village