Tag Archives: cedar roof cleaning in seattle

Cedar Roof General Maintenance

 

Cedar_Roof_Restoration_Bellevue

 

cedar roofs are unique

 

There are important factors to consider when planning on doing maintenance for a cedar roof. Cedar roofing requires very particular methods on upkeep that you wouldn’t need to consider on asphalt, tile and other roofing types.

When making decisions on the right service plan, it is crucial to understand how cedar roofs age, how they weather and why shingles buckle,crack and cup. Questions to ask yourself during the deciding phase of the right plan for your cedar roof are:

What is General / Preventative Maintenance ?

If your roof is still in good shape general / preventative maintenance can keep it in that condition. Preventative maintenance at PW&G consists of:

  • An inspection that covers all areas of the roof. Specifically areas where water intrusion is common.[1]
  • A blow off of debris. It is important to keep cedar roofing free from pine needles and leaves as these can seriously damage roofing.
  • Spraying an organic chemical compound to kill any moss and its root system.[2]
  • A check of the gutter system along the roofline and a thorough cleaning when necessary. 

These services can prevent many of the issues that cause cedar roofing to fail. Cracked, cupped and warped boards all start with excess moisture, preventing cedar from breathing. From its installation method and throughout its life cycle cedar must be able to dry off and release excess moisture.

Anything that prevents cedar from breathing is the primary culprit in the majority of all cedar roof failures. In our opinion culprit number 2 would be the excess stress cedar must go through to release that excess moisture and it’s why we are firm proponents of oiling cedar roofs to prolong their lives. 

In summary we have created this short post to help you in making an informed decision about the correct maintenance program for your cedar roof. We hope you have many years of life left in your cedar roofing, as many of these types of roofs are beginning to disappear as a roofing option all throughout Western Washington and the nation. We believe the maintenance required to keep a cedar roof in top shape is a fair exchange for the insulation benefits, the beauty and the appeal cedar roofs give a home.

Reference and Informational Material


 

[1] System components checked during an inspection are: The ridge caps, the field or body of the roof , connections to vent pipes and vent hoods , skylights and areas around chimneys.

[2] Our Preferred Chemical Application for Moss Control 

[3] A really great video by the guys at roof to deck on the care and appeal of cedar roofing. 

[4] The Cedar Bureaus Maintenance Program Manual 

[5] Why Wood Roofs Weather 

[6] How Cedar Roofs are Installed Diagram 

[7] Our Take on Why Cedar Needs Oiling

[8] In All Fairness. Why Cedar Roofs Don’t Need Oiling PDF . You Decide

[9] After the Quest. Decisions on Wood Appearance

 

Index


Cedar Roof Oiling is it Necessary?

curled-cedar-shake-graphic-illustration

pdf-flatThere is a big debate on the benefits of oiling a cedar roof. A comprehensive and great research paper was written by OSU students, referenced in EC1271, September 1988. Their exhaustive research neither discounted nor encouraged oiling of cedar roofs. As stated in EC1271, originally Cedars mass only contained 3% of its weight in oil. With such a small percentage of its weight to begin with being oil, the debate on replenishing is faulty.

We are not stating that the oils should be replenished. We are advocating oiling a roof in Seattle to prevent rapid expansion and contraction caused by UV rays and rainwater. The stress of shrinking and enlarging cause wood to crack, it is our belief, that oiling a roof stops the expansion and contraction from causing damage to the shingle. The oil allows natural contraction to happen without stressing the wood it is applied to.

OUR PREFERRED PRODUCT | WHY WE USE CHEVRON SHAKE OIL

chevronChevron shingle oil is a superior product for oiling cedar roofs it is of low velocity and transparent. The application doesn’t change the appearance of wood; instead it gives the wood a wet look.

Although higher in price than other cedar oils, the history and its long-established reputation among wood restoration experts make it possibly, the best choice for oiling a cedar roof or fence. 

There are many benefits of Chevron Shingle Oil such as:

  •  Its established reputation.
  •  Its ability to mix well with solvents.
  •  Its lasts when applied: many homeowners have said their oil treatment lasts 5 years or longer.
  • It’s easy to apply. A backpack sprayer with a round tip or flat-headed tip work great. There is no need for paint sprayers.
  •  Its ability to be mixed with stain.

When deciding to oil your roof, it should be done from the day it was installed. The ability to repair a cedar roof once the damage has been done is nonexistent. Maintenance is major issue for wood roofs. There are ways to treat cedar for moss that differ greatly from the way we would treat a composition roof. On average a 1200 square foot roof area costs from $16,000-25,000 dollars, according to homewyse. Yearly maintenance can run you about $400. When deciding to buy a home with a cedar roof or having it installed, budgeting for maintenance should be the first thing you do. The unexpected result of not maintaining your roof, can seriously hinder your economic circumstances.