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MPI Approved Products
RECYCLING FOR COMMERCIAL PAINTERS IN EDMONTON
For information on free disposal of commercial paint at the Nor-Alta Waste and Site Services, please click here.
Nor-Alta Waste and Site Services is in the west end of Edmonton so it may be an added convenience for businesses.
RECYCLING FOR COMMERCIAL PAINTERS IN CALGARY
For information on free disposal of commercial paint at the Shepard Landfill, please click here.
Caulking Wood Siding and Trims
Caulking is a material used for sealing joints in various substrates. The benefits of caulking are to provide an aesthetically pleasing finish to the substrate and to prevent moisture from penetrating, causing deterioration. However Caulking is not suitable for use on all substrates and when used on wood siding, can actually cause more harm than good, as shown below
Caulking is not recommended for use on butt-joints on wood siding, as siding boards are designed to expand and contract with the elements in ways that the caulking cannot. For example, when heated in the sunlight the wood siding will expand both sideways and outwards.
This was a problem found during an inspection of painting preparation work on a recent repaint project. There was evidence of the caulking failing between all of the butt joints (see image above). The use of caulking was an attempt to correct other issues with the building, however, the caulking failed causing moisture to become trapped behind it resulting in wood rot and failure of both the coating and the caulking.
Another area that Caulking should not be used is on trim boards that sit on top of the siding. On most homes the trim goes up after the siding is installed, which creates a large gap that should not be caulked. It requires strip flashing instead of caulking to deflect moisture from behind.
The air needs to circulate behind these boards and the opening allows for any trapped moisture to be released. The bottoms of sidings boards should not be caulked for the same reasons.
Caulking should be used sparingly on any external wood siding projects, and as seen in the inspection described above, and not on wood butt-joints because of the expansion and contraction in the elements.
The caulking was used in an attempt to correct other issues, but it failed and offered no protection resulting in the costly requirement of having to replace all of the deteriorated wood siding and trim.
Member Projects
Board of Directors
Board List
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President |
Calibre Coatings Ltd. |
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Past President |
Foothills Decorating |
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Vice President, North |
O’Canada Contractors Ltd. |
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Vice President, South |
Calibre Coatings Ltd. |
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Treasurer |
RCI Coatings Ltd. |
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Director |
SuperPro Painting Systems of Calgary Ltd. |
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Director |
Derochie Painting Ltd. |
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Director |
Final Touch Decorating |
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Director |
M&L Painting 1999 Ltd. |
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Director |
Mi-Pride Painting & Decorating Ltd. |
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Technical Chair |
Cloverdale Paint Inc. |
Milestone Members
Tips of Cleaning Interior Walls
Interior walls can be subject to all kinds of marks such as dirt, scuffs or hand prints. Cleaning interior walls requires some consideration, excessive cleaning or cleaning using inappropriate cleaning methods can cause irreparable damage to the coated surface.
Within this article we discuss the best practices for successfully cleaning interior walls.
Determine substrate
Before you carry out any cleaning it is best to determine what type of coating has been previously applied to the surface or substrate (if any)
Low gloss coatings – are less durable than higher gloss coatings making them more susceptible to damage from harsh abrasion and chemical cleaning.
High gloss coatings – are more durable, so will endure more abrasion and chemical cleaning, but are less often used on interior walls because they tend to enhance any surface defects, making them more visible.
Cleaning solutions When choosing a cleaning solution check for any abrasives, alcohols or harsh chemicals. Low gloss latex coated interior walls especially cannot endure this type of cleaning product, but some other products would fail if alcohol, bleach or other harsh chemicals are applied to them.
Test patch
Before commencing any cleaning on the full surface, carry out a test patch in an out-of-the-way area to assess the effect on the coating.
Rinse thoroughly
Whatever cleaning solution is used must be removed thoroughly or risk leaving streaking, especially if repainting the surface over the solution. Washing procedures should always be from the “bottom up” to also avoid streaking.
Recommendations
For best results, if you know what coating has been used to coat the surface, speak to the coating manufacturer about any recommended cleaning products or methods to be used.
Products tested by MPI are listed in the MPI Approved Products List (APL) under the relevant standard #. Look out for the MPI Approved Product Label on paint cans!
CLICK HERE for more information.
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