Aluminum sliding windows and doors help clad a significant proportion of the residential building stock in Canada. Since their appearance on the market in the 1950's, they gained in popularity and use due to their relative low cost, simple installation, and ease of maintenance. Deterioration of the original weatherstripping results in assemblies with poor air leakage performance and other incidental anomalies. Nationwide replacement of these windows and doors with more energy efficient modes is a difficult and expensive undertaking. It was the purpose of this study to analyse the alternatives which can be used to upgrade these windows rather than to completely replace them. By simply changing or replacing certain components, it was found that significant improvements could be achieved to the air leakage resistance of these units. Most of these upgrades, such as changing deteriorated weatherstripping gaskets with more efficient models, are relatively simple tasks which could be carried out by a building superintendent with some special training. The modified or upgraded doors and windows could thus obtain air leakage performance comparable to new windows on the market today. The costs associated with the implementation of such modifications are considerably less than those expected for complete replacement.Aluminum sliding windows and doors help clad a significant proportion of the residential building stock in Canada.
|Title||:||Retrofit and Remedial Work on Existing Sliding Doors and Windows|
|Author||:||Zorko, Jozef, Canada Mortgage and Housing Corporation, Chiovitti, Dominic|