Resin in softwood knots can stay active for years, and bleed slowly through most paints, even if the wood has been kiln dried. The only way to really stop the bleeding is to use a shellac to seal in the resins.Shellac is not a very strong finish but has the unique characteristic that it allows n...
Sealants, caulking and other confusing vocabularyThere are all kinds of "sealants" used in construction.What we normally call a "caulking" is properly called a sealant -- a thick material that cures to a flexible solid designed to "seal" the space between two materials -- particularly two materia...
Fastening to concrete or masonry? We've got three problems: choosing the right fastener, choosing the right tool and then doing it right. Here is some product information and trouble shooting tips.Power Actuated nailingExplosive shot nailling is the most common but the weakest of the serious ...
One of our viewers lives in an apartment over a noisy basement suite and wants to know what are their options to blocking the noise.Soundproofing is never a perfect thing and although each possible action can have an important effect, the sum of all the actions together can be less than you expec...
Boris lives in a 45 year old bungalow that has no insulation at all. It has a brick outside, an air space, a concrete block wall for structure inside and then drywall. Is it possible to blow foam into the space between the brick and the block?NO. As long as the brick is the weather shield for ...
Rick from Grand Bend, Ontario writes: "I need advice on how to strap a block wall for board and batten. The wall is 10 ft. high, and I am wondering how many straps I will need?"Too few straps and the boards will warp, too many and you are wasting your energy and perhaps blocking ventilation behi...
This article deals with a block wall above grade. For a below grade block wall see Basement Perimeter Drainage and Leaking Foundations.
Bryan is faced with a totally un-insulated cinder block wall with 1x2 strapping and a plaster covering. He is thinking about stripping it back to the block...
Connect to your favourite weather forecaster and look for the following conditions:
Category: Masonry Product: Brick Mortar
Temperature Limitations: Use above + 5 C (+40 F)
Rain Limitations: No standing water or wash out prior to setting
Wind Limitations: Protect mortar if wind will d...
Connect to your favourite weather forecaster and look for the following conditions:
Category: Concrete Product: Crystalline growth waterproofing products
Temperature Limitations: Use above +2 C (+35 F) and below +21 C (+70 F)
Rain Limitations: No rain until material is firm -- about 2 ...
Connect to your favourite weather forecaster and look for the following conditions:
Category: Concrete Product: Elastomeric Liquid Waterproofing Coatings
Temperature Limitations: Use above +10 C (+50 F) and below +32 C (+90 F)
Rain Limitations: No rain for 24 hours
Wind Limitations: ...
